Planting green manure crops in winter plays an important role in improving soil, fertility, improving yield and quality of the next crop, and reducing environmental pollution. Wintergreen fertilizer high-yield cultivation techniques are as follows: The timely sowing of the late paddy field is sown 15-20 days before the rice harvest. The rice field in the first season is sown in time after harvesting, and the straw in the rice field is removed or piled together before sowing. When planting, it is required that the surface of the field be moist. It is advisable to step on it without sticking to the soil or sinking. Too wet fields should be ditched for drainage. Too dry fields can be irrigated with shallow water before sowing. "Three flowers" mixed sowing is implemented for proper seeding. Mixed planting of three crops of ziyunying (1.5 kg / mu), garden flowers (0.2 kg / mu) and rape (0.1 kg / mu) can not only save seed costs, but also form three layers of flowers above ground and three layers of underground Roots, make full use of light and increase fresh grass yield. Seed treatment sun-seeding. Before sowing, you should choose noon on a sunny day and spread the green manure seeds for 4 to 5 hours to improve the vitality of the seeds. Selection. Astragalus seeds are often mixed with black seeds, coriander seeds, sclerotia and impurities. Use salt water with a specific gravity of 1.09 (100 kg of water plus 15 kg of salt) or muddy water (concentration is based on floating eggs as the standard) to select impurities, remove inferiority, remove sclerotia, and improve seed quality. Rub seeds. Because the epidermis of astragalus seed has a layer of waxy substance, which has poor water permeability, it is not easy to absorb water and swell, which affects both germination and the effect of rhizobium seed dressing. Before sowing, double the amount of fine sand according to the amount of seeds and grasp by hand to rub the seeds and sand against each other. Or lightly grind with a rice mill until the surface is smooth. Sanding and waxing is carried out to thin the seed coat and easily absorb water to distribute buds. Commodity seeds have been treated, so don't rub them. Soaking seeds. Soak the seeds in clear water for 12 to 14 hours before sowing, so that they absorb enough water to facilitate rapid and neat emergence. However, if the soil is too dry and the possibility of rain after sowing is not high, it is not appropriate to soak the seeds. Seed dressing. Rhizobia seed dressing. Fields that have been planted for the first time or have not been planted for many years have very few rhizobium in the soil. Seed dressing with rhizobium is used to increase the yield and nitrogen fixation of rhubarb. The rhizobium agent should pay attention to the selection of varieties that match with the mirage. For the amount and usage of rhizobium, please refer to the product instructions. Seed dressing with phosphate fertilizer. Ziyunying is more sensitive to phosphate fertilizer at seedling stage. Generally, about 5 kg of calcium magnesium phosphate fertilizer (but mixed with 2 to 3 times of sieved organic fertilizer) is usually used for seed dressing, which is conducive to robust growth at seedling stage. Strengthen field management. Dry the field before harvesting the late rice to ensure that the soil in the field is dry when the rice is harvested, and to prevent the seedlings from being pressed into the mud and dying during harvest. When the rice is harvested, leave high piles, about 30 to 40 cm, which is beneficial to the thermal insulation of ziyunying and can reduce the amount of straw moving out of the field. After the rice is harvested, remove the straw in a timely manner or gather the straw together to open a drainage and irrigation ditch. For small fields, ditch all around or center. Soil sticky or field fields, in addition to ditching around, should also be opened every 5 to 10 meters, the ditch is connected. In case of drought in autumn and winter, the topsoil will turn white, and the leaves of Ziyunying should be irrigated and moisturized when the leaves are red and yellow. It is advisable to moisten the surface without water. Ditch and drain when there is much rain in spring. Scientific fertilization is mainly based on phosphorus and potassium fertilizers. After emergence, 250 to 300 kg of thin dung water per acre is combined with drought-resistant irrigation to make full use of pre-winter temperature and light conditions to accelerate seedling growth. In early to mid-December, 500 kg of soil fertilizer per acre and 20-25 kg of superphosphate were added to enhance cold resistance, reduce freezing damage, and give full play to the effect of increasing nitrogen with phosphorus. After the spring, look at the fields and see the seedlings. Generally, applying 2 to 3 kg of urea and 3 to 5 kg of potassium oxide per mu can achieve the purpose of raising large fertilizers with small fertilizers and replacing organic fertilizers with inorganic fertilizers. Diseases and pests of green manure are mainly sclerotinia, powdery mildew, etc. The main pests are thrips, aphids, leaf miners, etc. Comprehensive control should be done carefully. Sclerotinia sclerotiorum and powdery mildew can be controlled with Bordeaux solution and 1000 times solution, and thrips, aphids, and leaf miners can be controlled with 1000 times aphid net and beltling. Turn over the flowering period or 15-20 days before the early rice transplanting. The flowering period was overturned, and Ziyunying's fresh grass had high yield, good fertilizer effect and easy to rot. The rice field in the first season can also be returned to the field when the green manure seeds are partially mature in early May. 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 Small Molecule Peptide,Collagen Peptide,Yam Peptide Powder,Herb Ginseng Peptide Fufeng Sinuote Biotechnology Co.,Ltd. , https://www.ffsinuoteplant.com
Winter planting green manure to soil cultivation