1. The fat heap should not be large and cold in the cold season, in order to promote the warming up of the fat heap, winter fertilizer fat accumulation of fertilizer should be appropriately increased. Generally 3-4 meters in diameter, about 2 meters high is preferred. It is also possible to use a rectangular fertilizer heap that is 2 meters high, 1.50-2 meters wide, and 4 meters long. If the fertilizer heap is too low and too narrow, the cold will invade, the heat will dissipate quickly, the fertilizer will be slow to ripen and the quality will be poor. In addition, some farmers send fertilizers to small piles of farmland or sprinkle on the ground during the winter and spring seasons. These practices are very detrimental to nitrogen conservation. According to the measurement, the fertilizer will be stored in small piles to store about 30% of nitrogen, and about 64% will be lost when it is sprinkled on the ground, but only about 10% will be lost in the winter storage of large piles. Therefore, it is generally advisable to send fertilizers in the winter and springs to be stored in large piles on the ground. It is better to throw them into the ground before planting. (2) Covering the soil and filling the soil to protect the fertilizer The winter accumulation or storage of fertilizer is not only suitable for large piles, but also measures to cover the mud around the top of the heap and the top of the heap: cover 1 layer of soil or 1 layer of wheat straw, which can play cold Can not enter the heap, the role of heat can not be distributed. Simultaneously, the mud-sealed mud blocked the passage of nitrogen volatilization loss and reduced the loss of nitrogen. According to the measurement, in the same period of time, the loss rate of nitrogen saved in the mud-filled soil was less than 10%, while the loss of nitrogen in the unsealed mud was about 30%. 3. Ash manure should be stored separately as grey manure, ie grass ash, which is an alkaline fertilizer. Mixing with manure causes a drastic drop in nitrogen in manure. According to the test, with the use of a ash gasket or manure, the loss of manure was about 40% after 3 days, 95% after 3 months, and only about 5% after 3 days of unpadding of wood ash or uncapped manure, and losses after 3 months. 48% or so. Therefore, in the composting process in winter, the gray excrement must be stored separately and avoid mixing. 4. Adding phosphorus and nitrogen in the fertilizer heap It is better to mix 2%-3% of superphosphate or more than 5% of phosphate rock in the fertilizer heap for storage and storage, which can play a significant role in nitrogen conservation. According to the test, if superphosphate is mixed in the fertilizer heap, only about 3.10% of nitrogen will be lost after 4 months, while about 45% will be lost without adding nitrogen. About 40% of nitrogen will be lost after 4 months of adding phosphate rock. Without the loss of 49.60%. Therefore, we must pay attention to adding some phosphate fertilizer composting, nitrogen and phosphorus twice as much. We, Jiangsu YanFang Medical Technology Co., Ltd, commenced our medical gloves manufacturing in 2020. Currently, we possess a total of 12 high-capacity NBR Glove Dipping Production Lines. Medical Examination Nitrile Gloves,Disposable Nitrile Gloves,Exam Nitrile Gloves,Dental Nitrile Gloves Jiangsu Yanfang Medical Technology Co.,Ltd. , https://www.yanfangchina.com
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