Soybean production and cultivation management measures

1. This period of seedling emergence is the stage of seed germination, germination, and emergence, which takes about 10 days. The management measures are to increase the temperature of the soil, protect the earth by loose soil, promote the emergence of soybeans, and eliminate early weeds. Pay attention to prevent the soil from being hardened, loosen the soil in time after rain, and remove the compaction to create good conditions for emergence.

2. The seedling period includes the seedling stage and the branching stage, and the time is 20 to 25 days. Soybeans have entered the vegetative growth stage of roots, stems, and leaves. The main target is to promote early-onset and grow seedlings on the basis of seedlings and seedlings. The main measure is to check the seedlings, make up the seedlings, cultivator, seedlings, and seedlings. After the emergence of soybeans, field investigations should be conducted in time to find that there is a shortage of seedlings and broken ridges, and they should be immediately replanted or transplanted. In combination with cultivating and weeding, and time seedlings, weak seedlings, young seedlings, diseased seedlings and hybrid seedlings should be removed, and the time should not exceed two true leaves. When entering the three-leaf stage, the seedlings should be planted according to the density of seedlings and combined with cultivators. The cultivator should not be shallow in depth. In this way, not only can play a role in drought protection, but also enhance soil aeration, promote soil microbial activity, accelerate the decomposition of organic matter, increase the nitrogen fixation ability of rhizobia, is very beneficial to root growth and cultivation of strong seedlings.

3. The calyx stage of flowering stage includes flowering and scab, which takes 35 to 40 days. This period is the time when vegetative growth and reproductive growth go hand in hand. It is the fastest and most prosperous period for plant growth and development. It is also the period when nutrients, water demand is the largest, and dry matter accumulation is the most abundant. Fertilizer can often not meet the requirements. A top dressing during the early flowering period has obvious effects on flowering and planting and increasing yield. In particular, in the barren land, the seedlings of the soybean seedlings are thin and weak, and the application of nitrogenous fertilizer to the land that cannot be timely sealed and ridged is particularly effective. In the fertile soil, full base fertilizer, seed fertilizer and early fertilizer application, when the plants are vigorous and flourishing. You can also not top-dressing, so as not to cause lodging. The amount of fertilizer should be based on the conditions of the seedlings, fertility, and fertilization, and it should be handled flexibly. Generally, 5 to 7.5 kg of urea should be applied per acre. This top dressing is carried out in conjunction with cultivator soil. This period is a period of high temperature and rainy season. If the soil fertility is high, management measures have failed to keep pace, and it is easy to cause leggy. For this kind of bean field, paclobutrazol or contraction ammonium should be sprayed at the early flowering stage to inhibit growth and promote development. For soils with low soil fertility that cause plants to grow too weak, urea should be supplemented at the flowering stage, and the quantity should be controlled according to the growing trend.

During the ripening period of soybean grain, the period of vegetative growth is stopped, the appearance of the plant has been established, and the reproductive growth is the main period. The organic nutrient in the plant is transferred to the grain in large quantities, and the grain enlarges gradually, which is the period when the dry matter accumulation of soybean is the most. The time is about 50 to 60 days. The normal development of this period will determine the number of grains per 100 grains, the height of 100 grains, and the quality of seeds. The main target is to increase grain growth and promote fullness. Management measures are to prevent plant lodging and premature aging. In the early days of granules, if there is a phenomenon of premature aging, the root-spraying fertilizer should be promptly applied (500 grams of urea, 150 grams of potassium dihydrogen phosphate, 15 grams of ammonium aluminate, and 40 to 50 kilograms of water). Where there are irrigation conditions, such as drought early in the grain, irrigation of grain water can significantly increase grain weight and yield, improve the quality of soybeans. Drum grain reduces soil moisture at the later stage, promotes early maturation of yellow peony and prevents early frost damage. 5. Timely harvesting and harvesting soybeans is the last step in increasing production and income. Harvesting too early and late has a certain impact on yield and quality. The suitable harvest time for soybeans differs depending on the harvesting method. Manual harvesting and mechanical segmented harvesting should be carried out at the end of yellow ripening. At this time, the leaves have mostly fallen off, and the stems and pods have become yellow, and the seeds and pods are detached, showing the intrinsic color of the varieties, and there are sounds when shaking. Mechanical harvesting should be carried out at the beginning of ripening.

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