What are the methods for judging whether organic fertilizer is fully decomposed?
Not using chemical fertilizers and pesticides is one of the goals of modern organic agriculture. Through several years of practical experience, the author found a method of making natural organic fertilizer using raw natural materials. Raw material: 1500 kg of natural red soil. 150 kg of rice straw, stalks and garbage. Some human excrement and urine or pig, chicken and duck manure. Compost to obtain...
The standards for the decomposition of organic waste (household garbage, excrement, agricultural waste, etc.) are:1. The color is dark brown, there is no foul odor, and it may even have a slightly fragrant smell;
2. Near neutral pH 6.5-8.5;
3. During storage it is relatively chemically stable; when sealed at 30% moisture and 35 degrees, it will no longer heat up on its own (that is, decomposition and synthesis chemical reactions no longer occur);
4. Mortality rate of Ascaris eggs 95-100%;
5. Coliform value 0.1-0.2;
6. If it is to be used as fertilizer, it must meet the requirements of NY 525-2002 "Organic Fertilizer" and GB8172-1987 "Control Standards for Agricultural Use of Municipal Solid Waste".