Autumn delay greenhouses how to fertilize
Autumn delay cultivation of large arch sheds or simple winter sheds is affected by climate, and the growth period is only 100-150 days. To improve its economic efficiency and extend the shed growth period, it must be in the middle of July and in the environment with cooling facilities. In the middle of the nursery, at the same time with decomposed organic fertilizer chicken manure 3-5 cubic, or pig manure 5-8 cubic, combined with 30-50kg compound fertilizer. However, during the fertilization process, if the chicken manure is not well cooked, it will burn seedlings or cause stalk rot. In order to avoid such mistakes, a full-nutrition fertilizer containing organic matter or humic acid can be selected, such as Luhong functional organic fertilizer (with organic matter ≥ 30%, N+P + K ≥ 4%) 120-200kg per mu, plus Lu Hong No. 1 3-5 bags (500g / bag, containing special functional factors and trace elements in fertilizers), plus Lu Hong Sanyuan compound fertilizer 40-50kg can replace chicken manure or pig manure. If dry chicken manure is applied, it is best to mix thoroughly for the first 15 to 20 days in a soil that is applied to a depth of 30 cm. The ridge is cultivated and watered alternately. When planting seedlings, application of 40% BP-A, Mn-Zn, and 1.5-2.0 kg doped soil to the cultivating ridges in the cultivating ditch can effectively prevent stem rot.
The autumn-delayed crops include cucumbers, zucchini, tomatoes, celery, and cauliflower. In addition to the selection of disease-resistant and seed-heat resistant varieties, rational fertilization is very important in cultivation management. July and August are the hottest times in summer. If the crops on the upper reaches are lagoon, it is a short time to change. When applying base fertilizer, do not apply organic fertilizer without sufficient maturity to avoid burning roots or causing crops. The stem base is rotted and matured, and 120-200 kilograms of functional organic manure can be applied to substitute for other organic fertilizers. How much fertilizer is applied depends on the length of the growing period of the cultivated crop. If a tomato, cucumber, or other crop is cultivated for only about 100 days, it will not grow after a "frost", but it will only increase the harvest period in a protected environment. For these crops, 100-120 kilograms of functional organic manure of Lu Hong and 50 kilograms of functional compound manure (15-15-15) of Lu Hong can be used for the application of base fertilizer. For old sheds with planting of more than 3 years, there are dead trees and rot. Phenomenon of the greenhouse, in the application of base fertilizer must add Lu Hong No. 1 3-5 bags, for the prevention of weight loss, inhibition of root knot nematodes, have a good effect.
After sitting on the cucumber root melon, when the first fruit of the tomato grows to the size of the walnut, it is necessary to flush the stuffing melon fertilizer or the swelling fruit fertilizer. Lu Hong can be used to fertilize A + B, per acre with Lu Hong Chong A10-15 kg fertilization, interval 10-12 days, then flushing Shi Luhong flushing and fertilizing B; plant sitting melon more, can be washed Shi Luhong 18-6-26 High-potassium fertilization improves the yield in the middle and later stages. In the prevention of diseases, spraying Lulu rejuvenation decoction, calcium galifer, and gold keratome fertilizer can effectively improve the disease resistance of plants, the heat resistance at the seedling stage, and the low-temperature resistance at the middle and later stages of crop growth.
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