1, soil management: Kiwifruit root is fleshy and its own penetration is weak. Therefore, it is required to plant in loose and breathable sandy loam; It is a long-term soil management work to dig deep and expand holes in kiwifruit orchard and improve soil with sufficient organic fertilizer, straw and residue fertilizer.
2. Fertilizer and water management: Fertilization must be based on trees and time. (1) young trees, from half a month before germination (early March) to late September, apply nitrogen, phosphorus and potassium fertilizer frequently, once a month, and apply 1.5 kg per tree every year; (2) For fruiting trees, it is necessary to master the fertilizer before germination; Fruit-promoting fertilizer in the fruit expansion period after flower withering; Strong fruit fertilizer for fruit growth in late July: from late August to early September, there are four key fertilization periods to promote flower bud fertilization. Nitrogen fertilizer was applied in the first two times, and total phosphorus and potassium fertilizer was applied in the last two times, and the annual application rate was above 10kg per plant. The best fertilization methods are ring application and hole application, and the fertilization amount should increase with the increase of yield of E799Be5BaA6E97AEE794B 4893E5B19E31333264643064. In water management, timely irrigation should be carried out. In the season of severe spring drought, water should be poured once before the buds germinate, which is convenient for timely germination and branching. In case of summer drought in the first fruiting period, irrigation should also be done in time to ensure the normal growth of fruits; In the rainy season from late July to late August, drainage and waterlogging prevention are often done well.
Second, shaping and pruning
According to the growth characteristics of different varieties, different plastic methods are selected. (1) Heywow: The growth potential is strong, the flowering ability is weak, and the plant cluster (less dry) is mainly T-shaped. (2) Qingcheng and Chuanmi varieties: moderate growth, easy flowering, multi-dry fan-shaped fence frame can be used, and a single fence shed can be formed when the fruit is in full bloom, which can achieve the effect of early fruit and high yield.
Pruning in the growing season:
(1) Bud smearing: remove heavy buds, weak branches, over-dense new branches and dead branches from trees. Generally, it is required to leave 1 2-13 buds within1m2.
(2) Picking: It is usually carried out in late May, when the new shoots are about 80 cm, which can save nutrition, facilitate the formation of flower buds in the next year and improve the yield and quality of the current year. There are 6- 18 leaves above the fruit for vigorous fruit branches, and 2-3 leaves are left for secondary and tertiary fruit branches.
(3) Rational use of space: All used space, except those that must be trimmed, should be kept as much as possible and not trimmed. In principle, it is moderately sparse and does not affect plant growth. Especially young trees, you can keep more trees and strive for early fruit.
(4) Removing abnormal fruits, damaged fruits and small fruits: generally, there are 2 14 fruits in long branches, 4 16 fruits in middle branches and 0/-2 fruits in short branches, and the leaf-fruit ratio is generally maintained at about 5: 1. By thinning fruit, the weight of single fruit can be increased and the quality of fruit can be improved.
Third, the correct, safe and effective use of pyridone conazole
On the premise of conventional management such as fertilizer and water management, fruit pruning and thinning, the correct use of pyraclostrobin can obviously increase the fruit, increase the yield and improve the commodity value of the fruit. The method is as follows: after the flowers wither 15-20 days, the young fruits are directly soaked with pyraclostrobin with the concentration of 10-20 PPm.