In the yellow wheat sector, soybeans are an important food crop that has been given high priority by the state. In recent years, the state has introduced a series of policies aimed at expanding soybean cultivation and increasing monolithic production. At present, however, soybean production has been hovering around 200 kilograms of acre production, making it difficult to increase, owing essentially to the fact that soybeans are grown without fatting. There are many disputes and misunderstandings surrounding this issue, which will be addressed in the context of the typical experience of high productivity in the field and will be addressed in this paper。
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The reason why soybeans are not fertilized is analysed: first, the planting habits are obscurous. For a long time, it has been considered that the nutrients left by the barp are sufficient to meet soybean growth needs and that, without fertilization, the acre production can reach about 200 kg. In practice, however, this is an over-reliance on “terrestrial power” and the use of land for subsistence purposes, which in the long run inevitably makes it difficult to increase production. Second, the soybeans, despite their nitrogen-fixing capacity, have roots that can stabilize nitrogen in the air and convert it to plant-absorbed nitrogen, reducing to some extent the application of nitrogen fertilizer. However, soybeans cannot be grown completely without fatting because of the large number of elements required to grow plants, which, in addition to nitrogen, require more than a dozen elements such as phosphate potassium, calcium, iron, magnesium and boron. In addition, soybeans have limited capacity for nitrogen fixation, are unable to fix nitrogen or have very little nitrogen fixation during the seed season, and, while flowering periods can quickly fix nitrogen, they are still unable to meet the demand for nitrogen for flowering corsets. Insufficient supply of soil nitrogen at this time will seriously affect soybeans production and quality. Therefore, the timely pursuit of fat is essential for the growth and development of soybeans. Third, soybean growth produces a variety of nutrients needed to produce, and soybean production cannot be increased at all without the application of soil residues to supplement other elements. Changing non-fertilization habits is a critical breakthrough in increasing soybean single production, and soybean production can be high-quality only if it is properly applied。
So, how's science chasing fat? To be clear about the right fertilisation measures, it is first necessary to understand soybean fertility patterns. According to studies carried out by the relevant units, 15 per cent of the total number of years of nitrous use occurs from seedlings to branches, 16. 4 per cent of the period of flowering, 28. 3 per cent of the period of flowering to condensation, 24 per cent of the period of soybean, and peak of the period of nitrous use from flowering to the period of druming。
In terms of demand for phosphorus, 17 per cent of seedlings occur from the beginning, 70 per cent from the beginning to the end of the drum, 13 per cent from the beginning to maturity and the highest demand for phosphorus in the medium term。
In terms of demand for potassium elements, the cumulative consumption of potassium prior to flowering was 43 per cent, and 39. 5 per cent of the period from flowering to drumping, which still required 17. 2 per cent of potassium to mature. Soybean growth also requires trace elements such as boron and molybdenum, which are associated with the nitrogen-fixing capacity of the root tumor。
For each 100 kg seed grain produced in soybeans, the absorption of nitrogen 7. 0 - 9. 5 kg, phosphorus 1. 3 - 1. 9 kg, potassium 2. 5 - 4. 2 kg and the ratio of nitrogen, phosphorus and potassium is 1:2:0. 4。
Based on the above-mentioned pattern of need for fertilizer, the principle of application of fertilizer is summarized as follows: “contributed mainly by organic fertilizer, supported by fertilizers, control of nitrogen and potassium polyphosphate for balanced application”. At the same time, the fertilization programme needs to be scientifically rationalized to ensure healthy soybean growth and high yields, depending on differences in soil quality, climatic conditions and soybean growth stages。
Organic inorganic combinations: during fertilization, emphasis should be placed on the use of organic fertilizers in conjunction with inorganic fertilizers. Organic fertilizers are rich in organic and trace elements that improve soil structure and increase soil fertility; inorganic fertilizers have high nutrient content and high fertility levels to meet soybean nutrient needs. Together, they achieve a balanced supply of nutrients and improve soybean production and quality。
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Flow bottom fertilization: bottom fertilizer is an important measure for breeding strong seedlings, with sufficient bottom fertilization and comprehensive nutrients, enabling plants to obtain sufficient nutrients. Especially before flowers, when soybeans do not have the capacity to fix nitrogen, bottom fertilizer can be used to plant nitrogen in time to enable it to thrive. Bottom fertilizers are usually applied to three quarters of soil fertilisers, or 300 pounds of organic fertilisation for commercials and 60 pounds of compound fertilisation for three dollars. Fertilizers are distributed directly on the ground, and sowing the air legs during sowing can cover the soil; commercial organic and compound fertilizers are soaked。
Multi-stage pursuit of fertilisation, precision supply: soybeans grow in multiple stages and demand for nutrients varies. Therefore, fertilisation is to be phased and provided with precision. Fertilizing once each of the soybean branches and the bouquets, 20 pounds per acre of high nitrogen compound fat and 25 pounds per acre of low nitrogen compound fat。
Fertilizers must be combined with water, so that the water is fully fertilized. Fertilizers are applied with emphasis on scientific irrigation and integrated management of water fertilizers. Rational irrigation can promote nutrient absorption and improve soybean yields and quality。
Be careful not to overdose in fertilisation and control nitrogen throughout the process. Excessive fertilization not only fails to increase production, but can result in soybeans becoming green or “green” and lower yields and quality. This is because excessive nitrogen fertilizer stimulates soybeans to grow, inhibits root growth and the ability to fix nitrogen, thus affecting soybeans production and quality。
