First, do not apply immediately after leaving the pool. Generally should be stored in the storage tank for 5-7 days before the application; the biogas residue and the phosphate fertilizer should be stacked in the ratio of 10:1 for 5-7 days before the application is better.
Second, do not chase after water. Doing so can cause burns in crops. Therefore, when biogas fertilizer is topdressing, it must first be water, and the general amount of water is half of the biogas slurry.
Third, do not pour on topsoil. The methods of acupuncture and furrow application should be adopted, and the back cover should be applied. When applied to paddy fields, they should be ploughed and spread evenly on the fields, and then plowed to the bottom.
Do not overdosage. Generally less than ordinary pig manure.
5. Do not mix with alkaline fertilizers such as grass ash and lime, otherwise it is easy to cause loss of nitrogen fertilizer and reduce fertilizer efficiency.
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