Key Points for Orchid Cultivation, New High-Yield Techniques for Autumn Broccoli
1. Intertillage, weeding and hilling. After planting, intertillage and loosening of the soil should be carried out in good time, which helps raise soil temperature and eliminate weeds. To prevent root damage, intertillage and weeding should be completed within 1 month after planting. Generally, intertillage is carried out 2-3 times in combination with topdressing; loosen the soil and weed before topdressing, and after topdressing promptly hill up the soil and spray New High-Fat Film, which can preserve soil moisture and prevent water evaporation, protect against sun and drought, preserve heat and prevent freezing, prevent soil compaction, and suffocate and isolate sources of pests and diseases. 2. Fertilizer and water management. Broccoli is a vegetable with a high fertilizer requirement. In addition to applying sufficient base fertilizer, topdressing must also be done several times during the growth period. Generally, the first topdressing is applied 10-15 days after the seedlings recover, and spraying New High-Fat Film at the same time greatly improves the utilization rate of the effective components of the fertilizer. When the terminal flower bud appears, apply the second topdressing, applying an appropriate amount of potassium sulfate or plant ash per mu. During the curd enlargement period, foliar fertilizer and Zhuangjingling can be sprayed, which can make the plant stems thick and strong, the leaves thick and plump, the leaf color fresh and tender, and the plant luxuriant, with a rich natural taste. At the same time, it can enhance the ability to resist disasters, reduce the amount of chemical fertilizers and pesticides, and lower residual toxicity. 3. Removal of side branches. For varieties used exclusively for terminal curds, the side buds should be removed before harvesting the curd. For varieties used for both terminal and side curds, more side branches sprout, and generally 4-5 robust side branches are selected and kept, while thin and weak side branches are removed to reduce nutrient consumption. Broccoli has relatively strong resistance and wide adaptability, and has no serious catastrophic pests or diseases. Common diseases include downy mildew, sclerotinia rot, black rot, and black spot, while the main pests include cabbage caterpillars, diamondback moths and aphids. Targeted pesticides plus New High-Fat Film should be sprayed in good time to improve pesticide efficacy, achieve the best control effect, and reduce the number of pesticide sprays and the level of pesticide residues. (Xiaoye)