At present, it is the harvest season of straw. Besides feeding cattle, straw can also be used to make pollution-free farmyard manure. Specific scheme of corn straw composting technology: The effect of using Lebeifeng organic fertilizer compost starter to ferment straw organic fertilizer is very good, and the specific operation steps are as follows: \x0d\ (1) Choose composting site: the temperature is always very low in the long winter. In order to speed up the fermentation of straw, it is best to choose a place in the lee and the sun, and set up a barrier around it. This can not only improve the temperature of the environment, but also prevent the damage of livestock and poultry and ensure the composting quality of straw fertilizer. \x0d\ (2) Handle the corn stalks well: firstly, cut the corn stalks into 3-4 cm lengths with a grass cutter or a straw cutter, or crush them with a pulverizer, but don't crush them too much, and then soak them in human manure or diluted livestock manure soup, as appropriate. \x0d\ (3) The proportion of raw materials should be appropriate: corn straw compost, the proportion of raw materials is very important. The general preparation method is: 7 parts of chopped corn stalk, 2 parts of livestock manure, and human manure 1 part; Or chopped corn stalks, soil, livestock manure and human manure, and the preparation ratio is 6:1:2:1; No matter which method is adopted, the ratio of straw to water should be 1:3. \x0d\ (4) Choose an appropriate composting method: soak the prepared raw materials thoroughly with enough water, then mix them evenly, and compost them on the flat ground or on the dung heap. If the temperature is above 0℃, hot water can be used to induce the temperature, and ignition can be used to induce the temperature below 0℃. First, pile a cart of horse manure on the bottom soil of the pile, dig a pit in the middle of the horse manure, put some dry wood in the pit and light it, then press on about 20 cm of straw, and cover it with a layer of horse manure when you see smoke. When all parts of the pile are frosted or steaming, add mixed ingredients around the pile. You can't add too much material at a time. Where there is frost, you can add materials, but you can't add materials without frost. At the same time, pile as much as possible, keep the temperature and speed up fermentation. The pile height is generally around1.5m.. \x0d\ (5) Strictly control the temperature in the reactor: it will start to heat up about 7 days after the reactor, and high temperature will appear soon. In the process of fermentation, the temperature should be controlled at 50 ~ 60℃, which is most beneficial for microbial decomposition of cellulose bacteria. If the temperature exceeds 70℃, this bacterial activity will stop. Therefore, when composting, corn straw must be soaked and absorb enough water to soften the straw tissue and facilitate microbial soaking for decomposition activities; Moreover, some nutrients must be dissolved in water to be absorbed and utilized by microorganisms, which can speed up the fermentation and decomposition of straw. Of course, it is also necessary to prevent the temperature from being too low, which will delay the fermentation time. After snowfall, the snow on the pile should be cleared in time to prevent the surface of the straw pile from freezing and reduce the temperature in the pile. \x0d\ (6) Create conditions for microbial activities: The decomposition process of corn straw fertilizer is the process of microbial decomposition of organic matter, and the speed of straw decomposition is closely related to microbial activities. Therefore, some human excrement or ammonium bicarbonate should be properly added in the composting process to increase the ratio of carbon to ammonia and promote the decomposition of microorganisms. Turn it once every 0/0 day after composting, and then every 7 days, * * * 3 ~ 4 times. The main function of pile turning is to make the raw materials evenly mixed, heated and ventilated, to ensure the rapid propagation of aerobic microorganisms, to promote straw rot and to shorten composting time. \x0d\ (7) Adjust the acidity in the reactor in time: Microorganisms in the reactor are suitable for activities under neutral and slightly alkaline conditions. When the acidity is too large, a small amount of lime or plant ash can be added to neutralize the acidity in the reactor to maintain a good living environment for microbial activities. After 25 ~ 30 days, the corn stalk fertilizer can reach the quality standard of black rancidity.