The disadvantages of traditional pig manure compost and the problems of pig manure are good agricultural fertilizers.
According to statistics, pig manure produced by pig farms can reach 1.2 tons per year. Pig manure is rich in nitrogen, phosphorus, potassium and organic matter, which is an organic fertilizer resource for soil improvement.
If the fermentation is carried out according to the traditional natural compost, it also has the following disadvantages.
1. The composting time is long, usually takes 4-6 months, and the fermentation effect is poor when the temperature is low;
2. Long term stacking not only occupies the site, but also pollutes the surrounding environment;
3. The manure fermented by natural compost is rotten and stinky, which is difficult to transport and directly apply;
4. Natural composting fermentation can not remove the pathogens, eggs and other harmful substances in pig manure.
Pig manure fermentation, pig manure fermentation organic fertilizer
Probiotics contain a large number of functional bacteria (photosynthetic bacteria, lactic acid bacteria, yeast and other complex flora) and their metabolites, which can accelerate the decomposition and transformation of pig manure. It can improve the fermentation conversion rate, shorten the fermentation time, improve the fermentation effect, reduce or even eliminate the odor problem in the fermentation process, and reduce environmental pollution. In addition, probiotics can kill the growth and reproduction of pathogenic bacteria and eggs in pig manure.
The operation technology and matters needing attention of organic manure fermentation.
Pig manure is the main raw material, good to add rice straw, rice bran, wheat bran or weeds and other ingredients. The proportion of materials used is 100-200 kg / T pig manure.
Prepare diluent, and prepare 20kg diluent according to the ratio of original solution: nutrient: water = 2:2:16. The specific preparation method is as follows: first, dissolve 2kg nutrients with a small amount of hot water, then add cold water to cool down to 30-35 ℃, pour in 1kg of original solution, add enough water, and stir evenly.
Tips.
(1) The amount o
f water added should be adjusted according to the humidity of pig manure. When preparing “diluent” when it is dry, more water should be added when preparing “diluent”, otherwise, the water consumption should be reduced; when spraying “diluent”, attention should be paid to spraying several times to prevent too much water in one spraying.
(2) Sealed fermentation. During anaerobic fermentation, if the sealing is not tight, it is easy to enter the air and cause high noise organic fertilizer quality.
(3) Fermentation time and temperature.
Generally, the fermentation time is 20-25 days in spring and autumn, 15-20 days in summer and 30-40 days in winter. The suitable environment temperature for fermentation is 25-35 ℃.
(4) Fermentation completion standard. The compost with good fermentation smell has Qu flavor but not odor.
Compared with the traditional composting pig manure, the soil pH can be reduced by 0.25 points with the adjustment rate of 3.36%.
The contents of soil organic matter, total nitrogen, phosphorus and available potassium were significantly increased after applying pig manure fermented by organic manure.
Shunxin pig manure fermentation tank covers a small area, which is one thousandth of the traditional fermentation area. It can save the capital investment of farms or organic fertilizer plants, greatly increase the space for material fermentation, win greater economic benefits for manufacturers, and also more conducive to large-scale batch production.
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