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Is planting blue roses the same as planting black roses? What is the difference?
The same, there is no big difference. [Flat land for farming management] Choose a plot with deep soil layer, loose structure and good drainage to build a rose garden, dig pits with a spacing of 50 cm and a row spacing of 150-200 cm, with a pit depth of 50 cm, and apply farm manure or bio-organic fertilizer 10 kg to each pit. Choose robust rose seedlings with 2-3 branches; Grafted seedlings require well-developed roots, 3-4 mm thick stems and 30 cm high plants. They should be planted with the seeds, and the seedlings transported to other places should be dipped in pulp and packaged. Reasonable close planting requires about 700 rose seedlings per mu. Because there were few seedlings in that year, in order to save land, 1500-2000 rose seedlings can be planted in close planting per mu. In the second year, seedlings can be transplanted or sold, and spring seeds can be planted in the early spring before the roses germinate. June 10 to February 12 is autumn planting, and summer planting is carried out in rainy days. Scientific management of intertillage weeding, because the seedlings are small and weeds are easy to grow, it is necessary to weed in time to ensure that the seedlings are not damaged and do not grow grass. Keep the soil loose. Fertilization is mainly based on organic fertilizer, and topdressing is usually 4 times a year. Before and after Tomb-Sweeping Day, livestock manure was watered for the first time, called germination fertilizer, and watered in time; In late April, apply human and animal manure for the second time before the flower bud is pregnant or before picking flowers to promote more and fuller flower buds; Apply bio-organic fertilizer in May, and apply overwintering fertilizer in late autumn and early winter to ensure the safe overwintering of seedlings. Flowering in June, after winter dormancy, cut off old branches, diseased branches and twigs and grow new branches. Attention should be paid to the prevention and control of pests and diseases in all stages of field management. Pest control (1) Aphids and Noctuidae: The damage to young seedlings and leaves can be sprayed with 2000 times of 40% omethoate or methamidophos mixed with water. (2) Scarabs and cutworms: Harming the roots of plants can be trapped and killed with poisonous bait. (3) Rust: There is rust on the back and stems of leaves. Key points of cultivation: 1. Planting is mainly in the ground, but there are also a few potted plants. In the Yellow River basin and its south area, it can be planted in the open air and overwinter in the open air. In the cold northern region, potted plants should be used indoors for wintering, or ditches should be dug and pots buried for wintering. After defoliation in autumn, it can be planted before germination in spring. It should be planted in a place with high terrain, abundant sunshine and no stagnant water, and the depth is off the ground 15 cm. When potted, humus soil, garden soil and river sand are mixed to cultivate soil, and a proper amount of decomposed manure or cake fertilizer and compound fertilizer are added into the well. After planting, water 1 time, put the seedlings in the shade for a few days and then move them to the sun for culture. 2. Sunshine with sufficient light and temperature can promote good growth. Ground planting and potted plants should be placed in sunny places and receive more than 4 hours of direct sunlight every day. Can not be placed in a place with insufficient indoor light for a long time. Enter the room in winter and put it in a sunny place. The suitable growth temperature is 12-28℃, and it can withstand the low temperature of -20℃. It is safe to overwinter in Zhengzhou. 3. Water and fertilize before planting, apply proper amount of organic fertilizer in the tree hole, and then water after planting. The requirement of water and fertilizer for ground-planted roses is not strict, and generally it can be fertilized three times. First, apply fertilizer before flowering, and put it into furrow before spring buds shade. It is best to add decomposed manure and humus. The second is to apply fertilizer after flowering, and apply decomposed cake fertilizer residue after flowering to supplement the nutrients consumed by flowering. Third, apply fertilizer in winter, and apply human manure after defoliation to ensure the safety of roses in winter. Potted roses can be applied with dilute fertilizer water in cattle for a long time, 10- 15 days 1 time. Roses are drought tolerant. Generally, plants are not watered at ordinary times, and they are watered for 20-30 days in hot summer or spring drought 1 time. Potted plants are watered for two days 1 time, and hot summer or spring drought 1 time. 4. Generally, pruning is not needed for plastic pruning. Old plants can prune dense branches, dead branches and insect branches. Roses bloom, if they fail, pick them and then bloom, otherwise they will only bloom 1 time. 5. Generally, the natural flowering period is better to control the flowering period.