This article is taken from Hebei Science and Technology News on March 3, 2009. The author is Fu Xuanchang from the College of Horticulture of Northwest A&F University.
A New Red Pear Variety ―― Mantianhong
Mantian red pear is a hybrid of Huoba pear and Xingshui pear, which was approved by Henan Forest Variety Approval Committee in 2008. The fruit is nearly round, with a single fruit weight of 280g and bright red on the sunny side. The meat is crisp and juicy, sweet and sour, with rich aroma, small stone core and few stone cells. The content of soluble solids is 14.5% ~ 15.5%, and the total acid content is 0.04%. The fruit ripens in Zhengzhou in late September. It bears fruit early, mainly short fruit branches, with high and stable yield, and bears fruit in different years, and the phenomenon of fruit dropping before harvesting is not obvious. Resistant to late frost, it has strong resistance to pear scab, dry rot, early defoliation, pear psylla and aphid. Suitable for development in the Yellow River basin, northwest and southwest regions.
This article is taken from the second issue of Horticultural Journal in 2009 by Wei Wendong, Zhengzhou Fruit Research Institute of China Academy of Agricultural Sciences.
A New Ornamental Peach Variety ―― Mantianhong
Mantianhongtao is a new variety bred by crossing Red Shouxing 2-7, which has dual functions of flower and fruit and is highly resistant to southern root-knot nematodes. In Zhengzhou area, flowering begins on April 9 and ends on April 26, with a flowering period of 18d (days). Double flowers, 4.4cm； in diameter; Sepals purplish red, in two whorls; Petals rose-red, oval, with small waves; 22 ~ 26 petals, 4 ~ 6 rounds; 4 ~ 5 filaments, pink; Anthers are orange-red with more pollen; Often double stigma, self-flowering can bear fruit. The fruit is round, with a single fruit weight of 130g and a maximum of 150g. There are many hairs on the surface of the fruit, the background color is milky yellow to milky white, and nearly 1/3 is red and peeling. There is a lot of pulp and juice. The flavor is sweet, and the soluble solid content is 65438 02%. Mantianhong needs a cooling capacity of 800h (hour), and it can bloom in the north of the Yellow River without artificial low-temperature treatment facilities and be listed in the Spring Festival.
This article is taken from Journal of Fruit Science, No.3, 2008, by Zhu Gengrui, Fruit Research Institute of China Academy of Agricultural Sciences, etc.
A New Early-maturing Grape Variety ―― Yu Xiang, Du Rui
Yu Xiang, Du Rui is a new grape variety bred by crossing Jingxiu as female parent and ChristianRandPhillips as male parent, which was approved by Beijing Forest Variety Approval Committee in 2007. The ear of the fruit is long and conical, with an average ear weight of 432g. The fruit is oval or ovoid, with an average grain weight of 6.3g and a maximum of 8.0g The peel is yellowish green and the fruit powder is thin. The pulp is crisp and juicy, sweet and sour, and the soluble solid content is 16.2%. In Beijing, fruits ripen in mid-August without cracking. Durui Xiangyu can be planted in North China, Northwest China and Northeast China. In production, attention should be paid to controlling yield, reasonable close planting, proper flower thinning and bagging, and it is appropriate to leave 70 ~ 80 fruits per ear.
This article is taken from China Fruit, No.2, 2009, by Zhang Guojun, Institute of Forestry and Fruit Trees, Beijing Academy of Agriculture and Forestry.
A New Sweet Cherry Variety ―― Sunshine
Sunshine sweet cherry is a variety introduced from Canada by Yantai Academy of Agricultural Sciences and approved by Shandong Province in 2008. The fruit of this variety is nearly round, straight and large, with an average single fruit weight of11.23g; Peel red to deep red, shiny; The flesh is rosy, juicy red, crisp and hard, with soluble solid content of 17.8% and rich flavor. The seed setting rate of this variety is 23.5%, the fruit development period is about 55 days, and it ripens in Yantai in mid-June. It began to bear fruit in the third year after planting. The average yield of 667m2 (mu) in the fourth year was 420kg, and that in the fifth year was 896kg.
This article is taken from Shandong Science and Technology News on February 9, 2009. The author is Zhou of Shandong Seed Management Station.
A New Walnut Variety-Luguo No.2
Luguo No.2 was bred from natural seedlings of early-bearing walnut varieties such as Xiangling, Fenghui, Shangsong No.6 and Aksu, and was approved by Shandong Forest Variety Approval Committee in June 2007. Olive fruit is oblong, nut-shaped, single fruit weight 14.5g, light yellow. Shell thickness 1.0mm, which is convenient for taking whole kernel; Ren Shan weighs 7.96g, full, light yellow and delicious; The kernel rate is 59.60%, the fat content is 7 1.36%, and the protein content is 22.30%. The fruit ripens in Tai 'an, Shandong Province in late August. The fruit setting rate of Luguo No.2 was 68.70%, with two fruits and three fruits, mainly medium-long fruit branches.
This article is taken from Friends of Fruit Farmers, issue 1 in 2009, by shandong institute of pomology Zhang Meiyong and others.
A New Seabuckthorn Variety Qiuyang with Big Fruit
Qiuyang is a new variety with medium maturity and suitable for processing, which was bred from Mongolian seabuckthorn seedlings. In 2008, it was approved by Jilin Variety Approval Committee. Berries are orange and cylindrical, with an average single fruit weight of 0.69g, soluble solid content of 8.9%, VC of 4 800 mg/kg and juice yield of 78%. The fruit in Changchun ripens in early September. This variety has no or less thorns, long fruit stalk and easy picking; Strong resistance, high yield and stable yield. It entered the full fruit stage in the sixth year after planting, and the yield per 1hm2 1 280kg. Suitable for development in Northeast China and Inner Mongolia.
This article is taken from Journal of Horticulture, No.2, 2009, edited by Liu Shuying, College of Life Sciences, Jilin Agricultural University.
Fertilization by stages is beneficial to the absorption of calcium in Fuji apples.
The results show that applying calcium fertilizer in spring, summer and autumn can keep the calcium supply level of soil and roots stable throughout the growing season, and the calcium concentration and accumulation of mature fruits are obviously higher than that of applying calcium fertilizer once in spring and twice in spring and summer, especially in autumn, which can continue to improve the calcium content of fruits in the coming year. It is suggested that the habit of applying calcium fertilizer only once in spring should be changed to three times in spring, summer and autumn. This method can be used according to available calcium in soil or in combination with other fertilizers, such as applying base fertilizer and calcium fertilizer in autumn, spraying amino acid calcium outside roots in spring, and topdressing or supplementing calcium outside roots in summer.
This paper is taken from Chen Feng's journal of fruit science, No.5, 2008, School of Horticulture Science and Engineering, Shandong Agricultural University.
Suitable pruning method and length of fruiting mother branch of pink Yadumi grape
Planting 0.8m× (1.8 ~ 2.0) m pink Yadumi grape should be pruned with Y-shaped hedge frame, and the amount of branches left in 667m2 (mu) is 4 500 ~ 5 000. If the garden is built with 0.8m× (1.5 ~ 1.8) m, a single hedge frame should be used for pruning, and the amount of branches left in 667m2 (mu) should be 4 500, resulting in horizontal bending and binding of mother branches. Pink Yadumi grape, the more buds, the more branches, the higher the yield. However, the more buds left, the longer the mother branches, the more serious the cross between branches and vines, and the more laborious the management. Considering the number of fruiting branches, fruiting coefficient, ear quality and management difficulty, if 66m2 (mu) is planned to produce 2 000~2 300kg of high-quality fruit, the fruiting mother branches should be pruned 65 438+065 438+0 ~ 65 438+02 buds.
This article is excerpted from Friends of Fruit Farmers, No.2, 2009, written by Sun * * * Ming of Shangqiu Agricultural and Forestry Research Institute, Henan Province.
Effects of high grafting with red dew on fruit quality of different apple varieties
Jonathan, Fuji and Wang Lin, born in 200 1 year 10, were grafted with Honglu apple, and the grafting height was 0.8 ~1.5m. Two-year-old begonia octagonal rootstock was grafted with Lu Hong. In 2006, Lu Hong apples entered the first fruit-bearing stage, and the fruit yield was controlled at 50 ~ 60 kg. The fruit was wrapped in an infrared brown double-layer paper bag, and the bag was picked on August 10. Harvest on August 27th. The effects of high grafting on fruit quality of Luhong apple were studied by solid phase extraction and gas chromatography-mass spectrometry. The results showed that: ① the fruit grafted with Fuji had the highest hardness (7.02 kg/cm2) and the highest soluble sugar content (12.5%); The single fruit weight of Gennadin is the largest (2 1 1.85g), but the hardness (6.42kg/cm2) and soluble sugar (1/.6%) are the smallest. ② High grafting can significantly affect the contents of different aroma categories in Lu Hong fruits, and the contents of esters and acids in Fuji high grafting fruits are the highest, accounting for 4.56% and 42.93% respectively. Jonakin has the lowest grafting rate, which is 1.98% and 29.76% respectively. Selecting Fuji tree top grafting is beneficial to improve the flavor and quality of Lu Hong fruit.
This article is taken from Journal of Horticulture,No. 1 2009, edited by Jiang Zhongwu, State Key Laboratory of Biology, Shandong Agricultural University.
Main technical measures for early flower bud differentiation of strawberry
(1) Shading seedling. The shading net with shading rate of 50% ~ 60% is used for seedling raising, and the covering time is from mid-August to mid-September. You can also build a small arch shed with 0.0 1 ~ 0.05 mm black film to cover strawberries before the flower bud differentiation of seedlings 1 ~ 20 days (in late August), and treat them continuously for more than15 days from 4 pm every day to 8 am the next day. ② Root cutting and seedling raising. Starting from 3 weeks before planting, the roots are cut off every 1 week, * * * 1 ~ 2 times, and ending at 1 week before planting. (3) cold seedling raising at night. According to different varieties, from late August to early September, heel in's seedlings in the seedling box were put into the cold storage at 6: 30 every day/kloc-0, and moved out of the warehouse at 8:30 the next day to receive sunlight. Generally, it can be planted after flower bud differentiation is confirmed in 17 ~ 20 days. ④ Raising seedlings in high mountains. In mid-August, strawberry seedlings were moved to the mountain at an altitude of 1000m and cultivated for 20 ~ 30 days. After observing the flower bud differentiation, you can plant it down the mountain.
This article is taken from the 22 nd issue of Jingnong in 2008, written by He, Vegetable Bureau of Heshan District, Yiyang City, Hunan Province.
Control Effect of 30% Fulian Suspension Concentrate on Winter Jujube Spot Disease
The experiment was carried out in 6-year-old winter jujube orchard in Zhanhua County, Shandong Province, and the perennial spot disease occurred seriously. The 30% Fulian SC was provided by Jiangsu Longdeng Chemical Co., Ltd. The treatments ①, ③ were 800, 1000, 1500 times of 30% Fulian SC, ④ clean water control, ⑤ routine spraying of 500 times of carbendazim wettable powder. Spray 1 time on July/2, 2008 (young fruit period), spray 1 time every 7 days, and spray for 3 times continuously. Results The diseased fruit rate of each treatment was 65,438+0%, 65,438+0%, 2%, 32% and 8% respectively, and the fruit expansion period was 3%, 4%, 5%, 35% and 65,438+00% respectively, and before harvest was 4%, 6% and 7% respectively. The relative control effects of pretreatment ①, ②, ③ and ⑤ were 89.5%, 86.8%, 8 1.6% and 65.8% respectively, among which 30% Fulian SC 800 times solution had the best control effect.
This article is taken from the 1 issue of Hebei Fruit Tree in 2009 by Guo Qinghong, the Dongzao Industrial Office of Zhanhua County, Shandong Province, etc.
Improvement of girdling technology of winter jujube
The traditional girdling technology is carried out on the trunk, and the width is difficult to master, which leads to fast healing and heavy fruit drop. It is not easy to heal when it is wide, and it is easy to weaken the tree strength. The improved techniques are as follows: ① Retaining auxiliary branches and girdling. Selecting the main branch 1 on the trunk as an auxiliary branch and girdling it above it can ensure the normal growth of the root system, promote fruit setting and avoid excessively weakening the tree potential. ② girdling of main branches. After girdling the trunk of an overgrown mature tree, several secondary branches can be left at the lower part of the main branch and girdled at the upper part of the main branch, which can intercept photosynthetic products and promote fruit setting. ③ Secondary girdling of main branches. After girdling the main branches of adult trees, 1 girdling should be carried out at the girdling opening, which can further intercept photosynthetic products and promote the results. ④ girdling and regeneration of main branches. For aged main branches, girdling can be carried out at 1/3 position to promote upper fruit setting and lower branches, and the main branches above the peeling mouth can be updated in time.
This paper is taken from Deciduous Fruit Trees by Wang Yukui, a forestry station in Xincan Township, Dongying City, Shandong Province (No.:1, 2009).
Technology of releasing Trichogramma to control apple leaf roller
Trichogramma can use the olfactory organ in the head to find the eggs of leaf roller moth, and use the tail ovipositor to lay eggs in the eggs of pests, thus eliminating the pests in the egg stage and achieving the purpose of controlling pests. The best control period is to meet the pupation peak of Trichogramma and the oviposition peak of leaf roller moth, and the release peak time is determined by observing the pupation progress of leaf roller moth. Generally, after seeing the pupa of leaf roller moth, observe it every day. When the pupation rate reaches 20% ~ 30%, the best release time is delayed 10d (day). Or in the occurrence period of leaf curl disease in each generation. That is to say, Trichogramma is released on the 3 rd to 4 th day after the peak of moth attraction. Generally, the number of bees released every 667㎡ (mu) is about 60,000, which is released twice. It is not advisable to spray medicine for half a month after releasing bees, and try not to encounter strong winds and heavy rain. When releasing the peak card, pay attention to fixing the line on the twig outside the crown to avoid ants and spiders from preying.
This article is taken from the sixth issue of Northern Fruit Trees in 2008 by Huayang, Liaoning Fruit Tree Research Institute.
Treatment technology of walnut fruitless trees
Root cutting. At the projection where the main branch or side branch is 0.8 ~ 1.0m away from the trunk, cut off 1 ~ 2, the thickness of which is more than 2cm, and they should be scattered and broken, not too much at a time, and the time should be 9 ~ 1 1 month, the sooner the better. Two branches are hurt. In the trunk (0.4~0.8m high) and the main branch (above 0.3m high), cut 1 ~ 3 knives every 0.8m, requiring 9 ~ 1 1 month, and the earlier the better. Three turning points. Bind the trunk (0.3~0.7m) and the main branch (15 ~ 20cm) 1 week, 1 ~ 2 months later, and untie them in time. Sixiu From September to165438+1October, the strong and vigorous branches were thinned by removing the strength and keeping the weakness, and removing the straightness and keeping the inclination. Five chemical control. In April or September, 1m2 soil was applied with 2 ~ 3g of 15% paclobutrazol for the trees with few female flowers. You can also spray 15% paclobutrazol 150 times from June to September.
This article is taken from the special issue of Northwest Horticultural Fruit Trees (No.5, 2008) by Feng Guanglin, Horticultural Work Department of Chang 'an District, Xi.
"Five Prohibitions" in Summer Pruning of Fruit Trees
First, the thinning tip should not be too early and too heavy. Some fruit farmers thinning branches after fruit setting not only affects photosynthesis, but also affects flowering. After the spring shoots stop growing, the overgrowth, competition and tight crowding should be removed.
Second, it is not too early to pull out branches and open corners. Some fruit farmers pull branches and open corners in spring, which leads to poor results. It should be done in autumn.
Third, the twisted tips cannot be connected. Some fruit farmers are slightly distorted no matter how many branches are on their backs, which affects the light. According to the size of the main branch, generally 3 ~ 5 tips should be twisted, and the rest should be thinned.
Fourth, the short section should not be too heavy. Excessive cutting will promote growth and affect the light transmission and flower-forming effect. Shortcuts should be used less in production.
Fifth, the auxiliary tip of the fruit table cannot be handled. Some fruit farmers thin or pick the auxiliary tips of the fruit table, which affects the fruit expansion. The auxiliary tip of the fruit table should be released slowly, without cutting or coring, so as to supplement nutrients nearby.
This article is taken from the fourth issue of Northern Fruit Trees in 2008, written by Jeong-Fee Lee, Xueli Village, Shuyuan Town, Nanhui District, Shanghai.
Tree Shaping Technology of "Inverted Mushroom" in Pear Tree
The "inverted mushroom" tree shape of early-maturing pear is cultivated on the basis of the happiness of three main branches. This tree is easy to cultivate, with high yield and good fruit quality, and is suitable for ecological areas with strong solar radiation in summer and autumn. Its shaping technology is as follows: in the second year of cultivating three happy trees, select strong new shoots that germinate at a distance of 0/5 ~ 20 cm from the main branch with the strongest growth potential, and bind them with bamboo poles to make them grow upright; When it is 80 ~ 1 00 cm away from the middle of the main branch of1layer, it is pulled obliquely (75 degrees from the original extension direction). Left and right) to slow down growth; Then, 2 ~ 3 new shoots are selected near the top of the extension rod, and they are cultured into small main branches, which are divided into lateral branches or branch groups to make them bear fruit. The angle of the small main branch on the extended trunk is larger than that on the 1 layer, which is beneficial to control the crown size and tree potential. Slender small fruit branches and short fruit branches can also be directly cultured on the "stem" of the elongated stem. This tree is only about 40 centimeters high, and looks like an inverted mushroom from the side.
This article is taken from the sixth issue of China Fruit in 2008 by Ruan Guanglun, the Fruit Office of Fuling District, Chongqing.
Apple cross bud grafting method
Apple cross bud grafting is suitable for rootstock branches of 2 ~ 3 years old, and the thickness is below' 6cm, preferably 3 ~ 4 cm. The grafting site is on the upper side of the branch, and the grafting time is 7 ~ g months. The grafting survival rate is high on cloudy days or more than 3 days after rain. The grafting method is simple and quick. After grafting, there is no need to bind with plastic strips, and the buds develop well and can grow into short branches that year. The specific method is t 1. Take grafted buds for example. Select the plump bud in the middle of the branch, cut it into a semicircle at about 1.2cm above the bud, and then go from shallow to deep at 1.2cm below the bud until the xylem 1/3. When the cut bud reaches the cross knife mouth, press it with your thumb, unscrew the bud piece, and pay attention to the vascular bundles protruding from the inside of the bud. ② Cutting the rootstock. In the smooth place where the rhizome is unbranched, gently cut the transverse incision with the length of 1cm, and then use the tip of the knife to draw vertically downward in the center, up and down about 0.8cm. ③ Bud insertion and bud spreading. Pick up the bark on both sides of the incision under the rootstock with a knife tip and insert the bud grafting piece. Then use your thumb to push the bud piece of the scion to the lower center of the cross, then use the knife tip to pick off the bark on both sides of the cut on the rootstock, and press the upper half of the bud piece under the bark of the rootstock so that the bud eye is located in the center of the cross. Finally, press the bud with your thumb and gently shake it to make it stretch and stick tightly. Push gently in the middle of the "ten" and the bud will not reach the center.
This article is taken from the 33rd issue of Beijing Agriculture in 2008 by Chen Jiancang, Tianshui Agricultural School, Gansu Province.
Experiment on control of apple mould heart disease
Apple mold heart disease mainly infects at flowering stage. The experiment was carried out in 2006 and 2007, and the experimental variety was Red Fuji. The test solutions are 70% thiophanate-methyl 500 times solution, 80% Sheng Da M-45 300 times solution, 75% chlorothalonil 300 times solution, 50% chlorpheniramine 1 000 times solution, 12.5% terbutamol 1000 times solution and clean water. Spraying time is set as flowering period twice (April 20th and April 26th), final flowering period twice (May 3rd and May 9th), flowering period and final flowering period twice (April 22nd and May 5th). After the fruit was stored in a soil hole for 100 days, the rate of diseased fruit was investigated. The results showed that the best spraying time was two times at the flowering stage and the last flowering stage, and the best spraying time was 80% Sheng Da M-45 300 times solution. The diseased fruit rate was 0, and the diseased fruit rate of other pesticides was between 0.33% and 0.83%, and the control was 6.33%.
This paper is taken from Hebei Fruit Tree by Huang Xiuli, Agricultural Bureau of Shengchi County, Henan Province, No.4, 2008.
Control effect of calcium fertilizer on pear top rot and iron head disease in Bali
Due to calcium deficiency, physiological diseases such as top rot and iron head disease often occur in Bali pear, which causes great losses to production. Therefore, the experiment of spraying calcium fertilizer on fruits and vegetables was carried out in 2008. The age of Bali pear tested is 65,438+08 years old. The calcium fertilizer for the tested fruits and vegetables was produced by Brent Co., Ltd. in the United States. In each treatment, 2000 times of calcium fertilizer was sprayed on fruits and vegetables at 65 days after flowering, 438+00 days after fruit expansion and 20 days before harvest, with clear water as control. The results showed that spraying calcium fertilizer on fruits and vegetables had a good effect on preventing and controlling top rot and iron head disease in Bali, the incidence rate was only 65,438+0.75% and 0.50%, while the control group was 65,438+0.45% and 9.25% respectively, and the control effect reached 87.93% and 94.59% respectively. At the same time, it can also increase fruit hardness, louver weight, hundred fruit weight and soluble solid content of fruit.
This paper is taken from the second issue of Northern Fruit Trees in 2009, edited by Zong Zong, the Agricultural Technology Extension Center of Lushun District, Dalian City, Liaoning Province.
Techniques of controlling fruit tree nematodes with urea and washing powder
The ratio of washing powder, urea and water is 1:3:300. The preparation time is to melt the washing powder with hot water, then add urea and water and stir well. Note that it must be stirred evenly, and no particles can be left, so as not to burn the leaves; Spray evenly, and be sure to spray the liquid medicine on aphids, otherwise it will be useless. In addition, different fruit trees have different reactions to this pesticide concentration, so small-scale experiments should be carried out before use. Liquid medicine is generally used in the early stage of fruit tree growth, which is easy to cause excessive growth in the later stage.
This article is taken from the fourth issue of Hebei Fruit Tree written by Li in Zhailing Middle School, Fengning County, Hebei Province in 2008.
Protective measures of peach tree damage
With the growth of peach tree branches, xylem becomes soft, and it is easy to break or split due to insect pests or mechanical damage, so protection must be strengthened: ① Peach-red-necked longicorn beetle is a stem borer of peach trees, and prevention should be strengthened. Before the emergence of adults from June to July, the branches are painted, and the proportion of the painting agent is quicklime: sulfur powder: water = 10: 1:40. ② After high-temperature sunburn, stick and stick should be used to support the main branches at the fruit hard core stage, and the opening angle should be kept, and the middle and lower parts should be shaded by internal branches, or the main branches should be painted white to reduce sunburn. ⑧ When gummosis occurs in peach trees, the site conditions should be improved to enhance the tree potential; Branches with mild illness should be scraped off when the rubber block becomes soft in wet weather before germination, and coated with 5 Be stone sulfur mixture for protection after seeing a little new skin. (4) When young trees are frozen, the damaged parts should be scraped off in time and painted for protection. ⑤ Cultivation management should be strengthened after peach branches are mechanically damaged, and wounds that cannot be completely healed must be coated.
This article is taken from Yantai Fruit Tree by Wen Jihua of Zhaoyuan Fruit Industry Station, Shandong Province (1, 2008).
How to avoid gumming and diseases of sweet cherry cutting branches
Pruning sweet cherry during dormancy is easy to degum and get sick. Therefore, first of all, the pruning time should be chosen after bud germination, when the pruning wound heals quickly. Second, the scissors must be sharp, and the knife edge should be cut in the direction of bud retention during operation, which can reduce the pinch injury to the cut branches and reduce the occurrence of glue flow; At the same time, horseshoe incision is used, leaving only 0.5cm under the incision, which is beneficial to healing; The incision should be quickly coated with polymer wound healing agent to prevent bacterial infection. Third, it is best to put the main pruning work in the growing season and reduce the amount of pruning in winter, so that the wounds caused by coring pruning in summer can heal quickly, and the infection of glue and bacteria at the cutting mouth can be fundamentally avoided.
This paper is taken from Wang Zhanjun's Northern Fruit Trees (1, 2009), an agricultural technology extension center in Lushun, Dalian, Liaoning.
Two-year cultivation method of dwarf interstock seedlings
1 staged budding method. In August-September of the year when the rootstock seeds are sown, the cultivated varieties germinate on the new shoots 30-35 cm away from the dwarf rootstock mother tree. In the spring of the following year, the dwarfed rootstock branches with varieties grafted buds are grafted on the base stock (rootstock seedlings), and qualified dwarfed intermediate rootstock seedlings can be produced in autumn.
Two-bud docking method. From August to September of the year when the rootstock seeds were sown, the dwarfed rootstock varieties germinated on the rootstock 5 cm above the ground, and the cultivated varieties germinated on the other side about 3 cm higher. The next spring, unbind and cut the rootstock, so that the two grafted buds germinate at the same time. When the dwarf rootstock is 30 cm long, it will be close to the variety branch at 20 ~ 25 cm. 15 ~ 20 days later, the new shoots of dwarf rootstock above node and the new shoots of this variety below node are cut off, and qualified dwarf intermediate rootstock seedlings can be produced in autumn.
This article is taken from Friends of Fruit Farmers, No.4, 2009.
Suitable planting period for promoting strawberry cultivation
Aiming at the yellowing phenomenon and unstable yield of strawberry 1 in greenhouse after harvest, the red cheek strawberry varieties in different planting periods were tested. The results showed that the most suitable planting time for shallow dormant varieties in Beijing was from August 22nd to September 1 1. The results showed that the plants grew neatly, the degree and amount of yellowing were light, and the yield of plants was stable in the early, middle and late stages. However, under the same management conditions, the plants planted after September 20 showed signs of premature aging, yellow leaves, short plants and small fruits in the late stage of fruit expansion, and the yield in the middle and late stage was significantly lower than that planted on August 22.
This paper is taken from "Beijing Agriculture" (18, 2008) by Lu He, Xiaotangshan exhibition base of Beijing Agricultural Technology Extension Station.
Make almond cookies
The formula 1 contains 2.5kg of wheat flour, 500g of wheat starch, 0.7 kg of cream, 0.2 kg of sugar, 400g of eggs, 800g of almond powder and 50g of baking powder.
2 production method ① mix and sieve wheat flour, wheat starch and baking powder; (2) Cut the cream into small pieces, put it into a blender and stir it into paste, gradually add white sugar and stir it evenly, add eggs twice and stir it evenly, finally add almond powder and sieved mixed powder, stir it slightly and put it into a plastic bag and put it in a refrigerator for refrigeration; ③ Take out thoroughly cooled dough, put it on the dusted chopping board, roll it into 3mm thick slices, buckle it out with plum blossom copper mold and put it in a baking tray; ④ Bake the baking tray in an oven at 170℃ for 15 minutes. Cookies are crisp and almond-flavored.
This article is taken from the eighth issue of Agricultural Products Processing in 2008.