2016/2017 winter wheat autumn sowing, the wheat high-yield planting and fertilization techniques are summarized
2016/2017 winter wheat autumn sowing has successively launched a summary of high-yield wheat planting and fertilization techniques. Wheat production has experienced autumn, winter, spring and summer, and has a long growing period. It has a high probability of encountering drought, continuous rain, wet damage, low temperature freezing damage, pests and other natural disasters. Production must be arrested from autumn, and it is based on disaster prevention and disaster prevention. To achieve high production and stable production lay the foundation.
The seed treatment uses high-yield, high-quality, wide-suited and multi-resistant wheat varieties, requiring purity ≥98%, clarity ≥98%, germination rate ≥85%, moisture content ≤13%, and cultivating 2 to 3 days before sowing. Before sowing, use Likxiu 6% tebuconazole suspension seed coating agent 10 ml and water 300 ml to mix 25 kg of seeds to prevent systemic invasive diseases and soil-borne diseases such as wheat smut and sheath blight.
For the selected varieties of wheat, in the case of suitable lyrical and conducive to emergence, it can be diluted with 20 grams of water and 0.5 to 0.75 kilograms per acre, and mixed with 6 to 10 kilograms to promote rooting, hairpin and strong seedlings. The seeds are evenly mixed and are now mixed. For the control of unpicked seeds, the wheat fields that have prolonged in the winter and early spring can be restrained by appropriate measures such as suppression or chemical control.
Applying the base fertilizer according to the principle of soil testing formula, the base fertilizer is applied, the phosphate fertilizer is applied mainly, and the nitrogen and potassium fertilizer bases are combined. The base fertilizer is generally applied with 5-10 kg of urea per mu, 45% of ternary compound fertilizer (15% of nitrogen, phosphorus and potassium), and 25 to 35 kg of fertilized organic fertilizer per mu. For the field where the straw is returned to the field, the amount of nitrogen fertilizer in the base fertilizer should be increased by about 10%.
Supporting "three trenches"
Vigorously promote mechanical trenching, especially in Huainan area, high-standard supporting internal and external "three ditch", excavating a vertical ditch every 3 to 4 meters, the groove width is 20 cm, the depth is 20-30 cm; 5 meters each dig a horizontal groove, the longer field will open a waist groove every 50 meters, the groove width is 20 cm, the depth is 30 to 40 cm; the head water outlet is required to be 25 cm wide and 40 to 50 cm deep to ensure Inside and outside the "three ditch" are connected.
It is also necessary to reduce the density and depth of the trench in the field by increasing the width of the vertical trench, increasing the amount of soil taken by the trench to cover the surface, preventing the emergence of dew seeds; at the same time, improving the effect of irrigation and drainage and reducing the damage of waterlogging.
After suppression, the fields of wheat and straw returning from Huaibei will be repressed. The cannons with a diameter of more than 30 cm or special repressing machinery can be used to suppress the surface of the field, so that the tillage layer is tight, the emergence rate is increased, and the whole seedling, Qi Miao and Baoyu are promoted. Antifreeze to ensure safe wintering. Rice bran wheat, especially plate stalk live and paddy field wheat, can increase soil fertility or increase gully and straw mulching.
Scientifically, after the seedlings are suitable for pre-emergence, use 50% isoproturon WP 125-150 grams per acre and 40-50 kg of water to seal the weeds. Before the wintering, the field with no soil sealing treatment or closed treatment before the sowing was not ideal, and the amount of weeds reached the control index, and was promptly removed according to the grass phase. Fields dominated by monocotyledonous weeds, in the 2 to 4 leaf stage of weeds, sprayed with 6.9% of scorpion oxalicin and 60-80 ml of water and 40-50 kg of water per acre;
Fields dominated by dicotyledonous weeds, in the 4th to 5th leaf stage of wheat, after the weeds are basically out, use 200g/L of flufenoxyacetic acid emulsifiable concentrate per acre to make 40~40ml of water and 40~50 Kilogram spray; wheat fields mixed with single and dicotyledon weeds can be mixed with related agents. When the average daily temperature rises to about 8 °C after the spring, the appropriate agent can be selected according to the grass phase before the wheat is removed. Pay attention to the cold tail warm weather application, avoid the cold wave before the advent, to prevent phytotoxicity.
This article URL: 2016/2017 winter wheat autumn sowing, the wheat high-yield planting and fertilization technology summary
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