Organic fertilizer can provide comprehensive nutrition for crops, promote the reproduction of soil microorganisms, improve soil structure, and enhance soil fertility, fertilizer supply and buffering capacity, and has an important role in increasing production. However, the composition of organic fertilizers is complex and it is particularly important to be reasonable when applying them. Improper application will result in the loss of nutrients, and even the difficulty of water absorption in the roots of crops, burning of roots, and stiff seedlings. After application Unripe organic fertilizers are decomposed and fermented by microorganisms in the soil. The resulting ammonia gas can easily cause burning of roots and poisoning of crops, and it can also breed weeds and spread pests and diseases. Therefore, it is advisable to build a lagoon in the headland of the Tanabe area for fermentation, or to add water to the compost heap, and to seal it with mud so that the temperature reaches 35°C to 40°C. It will be safer and more effective after 25 to 30 days of fermentation. Not too concentrated or overdosage Especially when fertilizing dryland crops, if organic fertilizers are applied directly between rows or near the roots of crops, the dry soil around the roots will be too concentrated due to the low water holding capacity of the dry soil. After the roots come into contact with the fertilizer heap, the crops will lose moisture and become antibiotics. Infiltration phenomenon, crops can not only absorb nutrients, but will make the roots of water and nutrients extravasation, so that crops grow poorly or appear wilting and dehydration dead seedlings, soil nutrient imbalance appears. Therefore, organic fertilizer should be used as a base fertilizer and evenly mixed in the soil. In the application of organic fertilizer during the growth period, it is necessary to open the ditch or apply a hole, apply a cover soil, and do not sprinkle on the ground. Leaf vegetables are generally not suitable for high-concentration liquid organic fertilizer for foliar spray. Sunburn application fertilizer loss large Some growers are accustomed to the organic fertilizers such as pig cattle pen manure drying in the sun, or applied to the topsoil of crops, this result is the basic loss of nitrogen in manure loss, rapid loss of phosphorus and potassium are also mostly lost, and pollution surroundings. In some places, straw returned to the field as organic fertilizer source, due to insufficient fermentation rot, but also too concentrated in the rice plant, the result is a large amount of hydrogen sulfide in the rot, the rice root black, seedlings late, not Timely remedial action will lead to the emergence of fresh seedlings in the field, resulting in reduced production. In this case, the field should be drained immediately, and the growth regulators such as sodium nitroprusside to promote root growth should be sprayed as soon as possible after drainage and drying, and 1% potassium dihydrogen phosphate and 1% urea should be mixed and sprayed. Reasonable application Straw, pig cattle manure, green manure and other organic fertilizers have high cellulose (ie, carbon) content and low nitrogen content. If the amount is too large, it can easily cause early nitrogen deficiency in crops and the emergence of weak seedlings. This is the reason why paddy field straw still exists. Fields must be supplemented with nitrogen to supplement nitrogen. The application of organic manure to crops is not as good as possible. Generally, 1,000 to 1,500 kilograms of fertilizer per acre, or 1,000 to 1,500 kilograms of green manure, and appropriate amounts of ammonium bicarbonate or urea are added during application to adjust the ratio of carbon to nitrogen to meet the needs of microorganisms. To prevent the emergence of microbial and crop nitrogen. The sheep manure in organic manure has high nutrient content, rapid decomposition rate, and high fertilizer efficiency. It is necessary to add appropriate amount of swine manure or cow dung at the time of application so as to achieve stable fertilizer effect. The application of phosphate fertilizer in organic fertilizers will help increase the phosphate fertilizer efficiency. The combination of organic fertilizers and bio-fertilizers will also help improve fertilizer efficiency. Cut Swimming Crab,Portunus Trituberculatus,Frozen Swimming Crab Cut,Frozen Half Cut Blue Swimming Crab Zhoushan Haiwang Seafood Co., Ltd. , https://www.haiwangseafoods.com