Guiding Opinions on Cotton Science Fertilization Technology in the Middle and Lower Reaches of the Yangtze River in the Spring of 2015
Middle and lower reaches of the Yangtze River Fertilization principle (1) Add organic fertilizer and promote the combination of organic and inorganic. (2) According to the soil fertility status and fertilizer efficiency response, the amount of nitrogen and phosphorus fertilizers should be appropriately adjusted to stabilize the amount of potassium fertilizer. (3) The cotton field with obvious boron and zinc deficiency should be applied with boron fertilizer and zinc fertilizer; the potential lack of attention should be paid to the application of boron and zinc fertilizer. (4) For the nursery and transplanting cotton fields, the phosphorus and potassium fertilizers are applied centrally by means of acupoint application or strip application. (5) Fertilizer application should be combined with irrigation and flood control techniques and other high-yield and high-quality cultivation techniques. 2. Fertilization advice Under the condition of 90~110 kg, the cotton lint is applied with 2000 kg of high-quality organic fertilizer, 13-16 kg of nitrogen fertilizer (N), 6-7 kg of phosphate fertilizer (P2O5), and 10-12 kg of potassium fertilizer (K2O). For cotton fields lacking boron and zinc, pay attention to the application of borax 1.0~2.0 kg/mu and zinc sulfate 1.5~2.0 kg/mu. High fertility cotton fields and low-yield fields should be appropriately adjusted to about 20% of fertilizer application. 25% to 30% of nitrogen fertilizer is applied as base, 25%~30% is used as top dressing in early flowering stage, 25%~30% is used as top dressing in full bloom period, 15%~20% is used as top dressing in boll season; all phosphorus fertilizer is used as base application; 60% is used as a base and 40% is used as a top dressing. From the flowering period to the weaker cotton field, spray 0.5%~1.0% urea and 0.3%~0.5% potassium dihydrogen phosphate solution 50~75 kg/mu, spray once every 7~10 days, continuous spraying 2 ~3 times. This article URL: Guiding Opinions on Cotton Science Fertilization Technology in the Middle and Lower Reaches of the Yangtze River in the Spring of 2015 Often said that the human body immunity is refers to the human form in the long-term evolution, the body is a series of bacteria, viruses, and on the outside invasion of a foreign body resistance ability, is not formed from a single organ or secretion, its composition is a system, including the skin, all kinds of fluid secretion and blood in all sorts of granulocytes and macrophages, constitute the body's defense system. Reinforce Immunity Powder,Bulk vinblastine sulfat Powder,Granisetron hydrochloride Powder Xi'an Henrikang Biotech Co.,Ltd , https://www.xianhenrikang.com
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