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How to grow spring-planted soybeans in Northeast China? A detailed explanation of the technical guidance
In the autumn and winter of last year, precipitation in Northeast China was lower than normal, soil moisture was insufficient, and drought was relatively severe. This spring there has been more rain and snow, temperatures began to rise rapidly in early April, and temperature and precipitation are close to normal. The Soybean Expert Steering Group of the Ministry of Agriculture, together with the National Agricultural Technology Extension Service Center, based on full investigation, proposed the following technical guidance for spring soybean planting: 1. Strictly select excellent varieties. Because of the dry climate last autumn, soybeans may not have matured normally physiologically at harvest, and mechanical threshing increased the possibility of damage to the seed embryo
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Detailed Explanation of Mid-to-Late Stage Management Techniques for Soybeans in Northeast China
The main soybean-producing areas in Northeast China and Inner Mongolia have generally suffered from a disaster pattern of spring drought followed by spring waterlogging. Drought, low temperatures and insufficient sunlight have caused slow plant growth, and have also increased the occurrence of herbicide injury, weed infestation and diseases. At present, plants generally have 2-3 fewer compound leaves than in the same period of a normal year, and growth is uneven. Therefore, cultivating strong seedlings, building a reasonable population structure, promoting early maturity and preventing lodging are the key tasks in mid-to-late stage field management of soybeans, and at present special attention must be paid to draining waterlogged soybean fields and preventing waterlogging damage. Recently, the soybean expert guidance group of the Ministry of Agriculture and the National Agricultural Technology
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How to grow soybeans in Northeast China? Main recommended high-oil, high-yield varieties and techniques
The Northeast high-oil, high-yield soybean demonstration project implemented by the state, after two years of development, has introduced a group of excellent high-oil soybean varieties and advanced production techniques, which are gradually being widely applied in large-scale production. On this basis, the Northeast high-oil, high-yield soybean demonstration technical expert group offers the following recommendations for the seed and techniques used in high-oil soybean production in the region in 2004: In 2004, Heilongjiang Province and its reclamation areas can, according to the accumulated temperature and production conditions of different regions, continue to use the high-oil varieties that had already been successfully promoted in large-scale production in 2003,
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How can the new functional components of soybeans be developed and utilized?
China is the homeland of soybeans, and over the long course of history, "soybeans have nurtured the Chinese nation." Modern science has discovered that the functional components of soybeans that nurtured the Chinese nation are mainly found in soybean meal. High-temperature soybean meal is the highest-yield product of the soybean oil processing industry. Whether the effective components in high-temperature soybean meal can be extracted is key to revitalizing China's soybean oil processing industry. The National Soybean Deep Processing Technology Research and Promotion Center invented a process using high-temperature soybean meal as raw material to continuously extract high-purity soybean oligopeptides, soybean isoflavones,
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Key Technical Points for Scientific Management of Soybeans Adapted to Seedling Conditions
Liang Huizhen, associate researcher at the Cash Crop Research Institute of the Provincial Academy of Agricultural Sciences, said that at present most areas of our province's soybeans are at the flowering and podding stage, which is the period of greatest nutrient and water uptake and also the peak period of root nodule nitrogen fixation. The main goal at this stage is to promote more flowering and more pod setting, prevent premature senescence, control excessive vegetative growth, increase flowers and preserve pods, reduce shedding, and lay the foundation for a high yield. Due to the tight time schedule at sowing, summer soybeans often receive no or little basal fertilizer, and by the time the soybeans set pods, nutrient deficiency occurs, so flower and pod fertilizer should be applied promptly. At
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Detailed Explanation of Key Techniques for Uniform Planting and High-Yield Cultivation of Soybeans
1. Determine planting density, row spacing and plant spacing according to varietal plant-type traits, branching and other characteristics. (1) Short-stalked, early-maturing, main-stem-type varieties resistant to lodging and branching: row spacing 30-40 cm, plant spacing 8-10 cm, retained seedling density 18,000-25,000 plants. 2. Determine planting density according to soil fertility level and management level at the plant spacing. After determining the planting row spacing according to the variety, density adjustment should also be made according to soil fertility conditions and water-fertilizer management level. 3. Sufficient soil moisture and early sowing. Early sowing can significantly increase yield and increase fat content
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The Correct Method for Spraying Nano Magnetic Energy Liquid on Soybeans
This year, driven by the market, farmers across our province have shown exceptionally high enthusiasm for planting soybeans, adopting high-yield practical cultivation techniques and increasing their inputs, achieving uniform, complete and vigorous seedlings, laying a solid foundation for a large-scale bumper harvest. Recently, many farmer friends have called to ask how Nongwang Nano Magnetic Energy Liquid should be sprayed. Here is a brief introduction: 1. Foliar spraying: What does Nongwang Nano Magnetic Energy Liquid do? Nano Magnetic Energy Liquid is a non-chemical product, a magnetic liquid prepared using the method of magnetic drug bioengineering.
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Key Technical Points for Field Management of Soybeans in the Mid-to-Late Growth Stages
I. Management During the Flowering and Podding Stage During the flowering and podding stage, the main management tasks are to strive for more flowers, early flowers, uniform flowers, increased flowers, and increased pods, and to prevent flower and pod drop. Management should be based on observing the plants, combining preservation and control; for high-yield fields, control should be the main approach, avoiding premature canopy closure and shading, so that maximum leaf area is reached at the end of flowering. Specific measures: continue hoeing weeds before canopy closure, and apply irrigation and fertilizer as appropriate based on plant condition; at the early flowering stage, fertilizer should be applied to weak plants, but not to vigorous plants to prevent excessive vegetative growth. Applying phosphate fertilizer during the flowering and podding stage has an obvious effect; during this period, soybean leaf area reaches its maximum, water consumption increases, and both transpiration intensity and water demand
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Key Integrated Management Techniques for Soybeans During the Flowering and Podding Stage
When soybeans enter the flowering and podding stage, vegetative growth and reproductive growth proceed together, requiring sufficient water, nutrients and light. In terms of cultivation measures, vegetative growth and reproductive growth should be coordinated to achieve many pods and many seeds. The main measures should include the following "three preventions" and strengthened management during the seed-filling and maturation stage. The "three preventions" measures during the flowering and podding stage (1) Preventing excessive vegetative growth: when soybeans have shown 2 tillers and are flowering, use 30 grams of 15% paclobutrazol wettable powder per mu, mix with 40 kg of water, and spray to top the plants, which can shorten internodes, control top vine growth, increase flowers and preserve pods, so that pods cover the top; (2) Preventing drought and waterlogging: during the soybean flowering period, attention should be paid to summer drought, seepage and moisture retention, and in case of severe waterlogging, drain promptly to reduce waterlogging damage; (3) Controlling pests: from the end of July to mid-August is the peak outbreak period for soybean semi-looper, bean hawk moth, leaf roller, alfalfa noctuid and other pests. Pesticides with contact and stomach poison effects such as fenvalerate or cypermethrin plus dimethoate emulsion or dichlorvos can be used for control, eliminating pests at the 1st-2nd instar stage.
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What causes yellow leaves in soybeans before flowering
In recent years, yellow leaf disease has occurred rather widely on soybeans and other legume crops. If not controlled in time, it can cause serious harm to crop growth. For example, when it occurs early, the leaves turn yellow, the plants are short and stunted, and no pods form. When it occurs at the mid stage, even if pods form, they contain no seeds, and even if there are seeds, they are shriveled, causing severe yield loss or total crop failure. The causes are as follows: First, long-term application of chemical fertilizers and reduced use of farmyard manure have caused soil compaction. Second, in recent years, the use of combine harvesters for harvesting wheat and the widespread practice of burning wheat stubble have destroyed the surface structure of the soil. Third, nutrient deficiency
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