From a scientific point of view, in order to make full use of its fertilizer efficiency in farmyard fertilizers, the following points must be noted in the winter accumulation and storage of fertilizers:
Fertilizers should not be large and cold in cold seasons, in order to promote the warming up of fertilizer heaps, winter fertilizer fat accumulation of fertilizer to be properly increased. Generally about 3 ~ 4m in diameter, about 2m high is better. It is also possible to use cuboids with a height of 2m, a width of 1.50-2m and a length of 4m. 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 for storage in the winter and spring season or to the ground. 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.
Covering the soil and filling the mud to ensure fertilizer efficiency. In addition to piles of fertilizers or fertilizers in winter, piles of soil and mud shall also be used around the heaps of fertilizers and heap tops. That is to say, one layer of soil or one layer of wheat straw mud should be used to cover cold air. 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%.
Ash manure alone storage effect of high gray manure that is plant ash, is an alkaline fertilizer. Mixing with manure causes a drastic drop in nitrogen in manure. According to the test, with the use of ash washers or manure, the loss of manure nitrogen 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.
Fertilizer plus phosphorus and nitrogen is better to mix 2% to 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, nitrogen loss will only be about 3.1% after 4 months, and the loss will not be about 45%. After 4 months, the loss of nitrogen will be about 5.4%. Without the loss of about 49.6%. Therefore, we must pay attention to adding some phosphate fertilizer composting, nitrogen and phosphorus twice as much.
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