Farmyard manure is indeed a very good source of organic fertilizers, but it is often found in use that there are sometimes many underground pests in plots that have used farmyard manure, and there is a tendency to increase year by year. This is related to the inappropriate application of farmyard manure. There are many pests in farmyard fertilizers, such as cockroaches and insects. If they are not treated or handled improperly, pests will multiply, and after application, they will harm crops such as vegetables, grain, and fruits. Production must pay attention to the treatment of farmyard fertilizers. After several years of experiments, the author has achieved good results. Now I will introduce the main points of common farmyard fertilizers as follows. Chicken and duck dung were flattened, dried, and crushed, with 1 kg of phoxim per cubic meter. After mixing, it is piling up into a circular table shape, with mud flat, and can be applied after 15 to 20 days. Fresh cow dung and sheep dung were mixed with 30% ash, and then spread to 10 cm thick, spraying 1 kg of liquid medicine per square meter. Liquid preparation: The ratio of water, 1605, and carbendazim is 100:0.2:0.3. When the pig manure is half-dried, it is piled into a 50 cm-high circular table, with mud flat, with a wooden stick inserted in the top of a number of permeation holes, a hole depth of 40 cm, and then filled with liquid medicine. Liquid preparation: The ratio of water to trichlorfon is 100:0.5.
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