Fertilization is a seemingly simple and complicated agricultural routine. For many farmers, fertilization can be skillful and has experience to follow, but it is not so simple to truly achieve scientific and reasonable fertilization. In fact, in the process of fertilization, according to the three principles of scientific fertilization, the effect of good fertilization, saving resources, and doing more with less can be achieved.
Improve fertilizer efficiency: how to apply well
Spreading and stripping Spreading is generally used to apply basal fertilizer to farmland before crops are planted, or deep, strip, or hole applications cannot be used during the growth of higher-density crops. The fertilization method can be evenly distributed to the soil tillage layer, and it is advantageous for the early absorption and utilization of the crop root system. The strip application is to use layered seeding before planting the crop, or after the crop is planted, the ditch depth is about 5-10 cm, and the soil is covered after application.
Rotary fertilization is suitable for perennial woody crops. Generally, the trunk is used as the center of the circle. A round fertilization ditch is excavated along the corresponding field surface of the canopy above the ground. The crescent-shaped ditch with a certain length of rice can also be used to apply fertilizer in a circular area under the canopy when combined with a large amount of organic fertilizer in winter.
Fertilization dissolves fertilizers in water to form a fertilizer solution, and infiltrates the soil surface where the roots of the crops are concentrated. For phosphate and potassium fertilizers, base fertilizers should be used mainly because of their low mobility. Can achieve the purpose of external root topdressing.
Fertilizer application: what to see
The application method of flushing fertilizer with water is also called “rush fertilizationâ€. Generally, it is a kind of topdressing fertilizer that provides supplemental nutrition during the rapid growth of crops. Since it is supplementary fertilization, it cannot replace the main fertilization methods such as base fertilizer. However, many farmers like to use this method of topdressing, and it is effective because they can only be applied with water. Urea, ammonia, ammonium sulfate and ammonium nitrate, as well as potassium chloride and potassium sulfate in potassium fertilizer are commonly used in nitrogen fertilizer. Potassium nitrate can be fertilized by flushing. Even if the phosphate fertilizer is water-soluble phosphorus monoammonium and phosphorus diammonium, do not flush it, because the phosphate fertilizer has poor mobility after being dissolved, and is easy to be fixed, and cannot penetrate into the root layer with water. The best way to apply phosphate fertilizer is to bury it in layers to increase its utilization. At the same time, it is not appropriate to crush granulated high-concentration compound fertilizers and use them as impregnated fertilizers or to apply uncured and insoluble solid organic fertilizers and microbial preparations as fertilizers.
Choose Fertilizer: Adapt to Local Conditions
Soils such as sandy soil should be applied with more organic fertilizers, such as soil mixed fertilizers, straw returned to the field, or green manures should be pressed and fertilized in a timely manner to gradually improve soil properties.
Organic fertilizer applied to clay must be fully rotten and mature, topdressing chemical fertilizers should be appropriately early, and "eat more and eat less" should be appropriately reduced, the frequency of fertilization should be appropriately reduced, and excessive application of nitrogenous fertilizer in the later period should be avoided to prevent crops from becoming stale. In addition, plow soil should be cultivated regularly to improve soil aeration.
The loam should be combined with long-acting and short-acting fertilizers to timely meet the demand for fertilizers at different growth stages of the crop; organic fertilizers and chemical fertilizers should be used to fertilize the soil, and both nutrients should be given equal emphasis; a large amount of fertilizers should be combined with micro-fertilizers to provide timely crops Of various nutrients.
Disclaimer: Some articles on this website are transferred from the Internet. If you have third party legal rights, please inform this website to deal with them. phone
Taizhou Yingtian Agricultural Machinery Manufacturing Co., Ltd. , https://www.sakuradaagc.com