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Detailed introduction to the elite soybean variety Guixia No. 3
Approval number: Gui Shen Dou 2007001. Variety name: Guixia No. 3. Breeding unit: Maize Research Institute of Guangxi Zhuang Autonomous Region. Variety source: Gui M32 was developed by using the Guangxi local variety "Jingxi Qingpidou" as the female parent and Wuming Black Soybean as the male parent, through sexual hybridization and crossing, followed by the bulk selection method. Characteristics: growth period 108 days, a medium-maturing variety, determinate podding habit, plant height 59.9 cm, medium-tall, main stem 14.7 nodes, 2.5 branches, 43.7 pods per plant,
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Introduction to the superior soybean variety Guixia No. 2
Variety approval number: Gui Shen Dou 2004003. Breeding unit: Maize Research Institute of Guangxi Zhuang Autonomous Region. Variety source: Developed through sexual hybridization using the Guangxi farmer variety "Fusui Huangdou" as the female parent and "Gui 190" (Pingguo Dou × Qingrenniao) as the male parent. Registration unit: Maize Research Institute of Guangxi Zhuang Autonomous Region. Characteristics: This variety is an early-maturing summer soybean variety with a growth period of about 96 days. It has a determinate pod-setting habit, purple flowers, brown pubescence, and relatively large, ovate leaves. Plant height is 55-65 cm, with 13-
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Introduction to the Improved Soybean Variety Guizao No. 2 (formerly coded 199)
Variety approval number: Gui Shen Dou 2004001. Breeding unit: Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences. Variety source: selected from the Guangxi farmer variety "Lacheng Huangdou" through line selection. Unit submitting for approval: Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences. Characteristics: This variety belongs to the determinate podding type, is erect with a compact plant type, and has a spring sowing growth period of about 98 days. It generally has a plant height of 59.1 cm, 13.3 nodes on the main stem, and 2.4 branches. It has white flowers and gray hairs, and at maturity the pods are light brown. It has good leaf drop.
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Supporting Technologies of Improved Soybean Varieties and Methods for High-Yield Cultivation
1. Timely sowing: Select varieties with high yield-increase potential adapted to the local area, and sow at the right time. Apply herbicide before sowing soybeans, and apply herbicide again after sowing depending on the weed situation. Sowing time: spring soybeans from late April to early May, sowing depth 5 cm; soil moisture conditions must be given great attention at sowing. The conditions for soybean seed germination mainly include moisture, temperature and oxygen. ① Moisture: seed germination begins with water absorption, so water is an important factor for germination. When seeds germinate, the water absorbed equals 1.21
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Detailed Explanation of the Two-Ridge-One-Furrow Soybean Cultivation Method
The two-ridge-one-furrow cultivation method is based on 70cm ridge planting, with an additional seedling row added in the furrow every other ridge, a large row spacing of 140cm and a small row spacing of 35cm, sparse inside and dense outside within the furrow and platform, and hole sowing cultivation. Reasons for increased yield: (1) Increased green area and improved canopy structure. (2) Improved ventilation and light penetration conditions. (3) Improved drought resistance. (4) Fully utilized heat resources and raised soil temperature. (5) Improved soil nutrient supply conditions. Technical key points: (1) Rotation
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Detailed Explanation of Control Methods for Two Major Soybean Diseases
Soybean frogeye leaf spot, also known as spot disease, begins infecting pods from the young pod stage, with the seed-filling stage being the peak period of infection, and severe outbreaks occur in July to August when high temperatures and frequent rain occur. It mainly damages leaves; when severely affected, almost all leaves become covered with lesions, causing premature leaf drop, reducing soybean quality and cutting yields by 20%-30%. This year, the hot and rainy climate in many parts of our province is highly favorable for the disease to occur, and the author reminds soybean farmers that they must not neglect the control of soybean frogeye leaf spot. Chemical control: During the flowering and podding stage of soybean, use 50% carbendazim
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What to Do About Soybean Flower and Pod Drop? Causes and Control Techniques
There are many causes of flower and pod drop in soybean, mainly: poor ventilation and light penetration. Under poor ventilation and light conditions, soybean is prone to flower and pod drop. When planting soybean, improper variety selection, early canopy closure, excessive density, mutual shading of branches and leaves, coupled with high humidity and poor light, leads to low leaf chlorophyll content, causing soybean plants to gradually turn yellow. With little nutrient accumulation, flowers and pods drop. Nutrient imbalance: the flower and pod drop stage of soybean is the period of highest nutrient demand; if nutrient supply is insufficient, flowers and pods will drop. The fertilizer requirement pattern of soybean
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What are the precautions for feeding pigs soybean cake?
Soybean cake is a high-quality feed for pigs, containing about 40% crude protein and 6%-8% fat; its crude fiber content is very low, only below 5%. In the protein, lysine accounts for 2.9%, while methionine and tryptophan each account for 0.6%. Its amino acid content is higher than that of any other plant-based protein feed, making it the most valuable among plant feeds. Soybean cake has an aromatic fragrance, and pigs love it very much, but it lacks vitamin D, carotene, and calcium. Some carrots and mineral feeds such as bone meal and stone powder should be supplemented. The amount of soybean cake used must not be too much, generally accounting for about 15% of the daily ration.
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What are the methods for preventing and controlling soybean flower and pod drop?
1. Reasonable topdressing. Usually, soybean is topdressed once with nitrogen fertilizer at the early flowering stage, which can reduce the rate of flower and pod drop, extend the lifespan of the plants, increase grain weight, and raise yield. Generally, 150-230 kg of ammonium nitrate or 120-180 kg of urea can be applied per hectare; at the flowering and podding stage, foliar topdressing can be carried out, using 0.5 kg of urea, 1.5 kg of superphosphate, 0.3 kg of potassium sulfate, and 30 g of borax per mu, adding 50 kg of water, extracting the leachate, and spraying it on the leaf surface, which helps preserve flowers, increase pods and grains, and raise the 100-
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Key Techniques for Mechanized High-Yield Cultivation of Densely Planted Soybean
The integrated mechanized high-yield cultivation technique for densely planted soybean is based on the three-ridge soybean cultivation technique, while continuing to maintain deep loosening, layered deep fertilization, and precision sowing. It draws on foreign experience in narrow-row dense planting and semi-dwarf varieties for increasing yields, and combines these with matching machinery to form an integrated mechanized high-yield cultivation technique, including flat-planting dense planting technology and small-ridge dense planting technology. I. Technical advantages 1. Reasonable dense planting increases yield. The technical feature is reasonable dense planting, uniform crop distribution, and increased crop photosynthesis. Select lodging-resistant semi-dwarf varieties, increase
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