The precision and semi-precision seeding technology of wheat is a cultivation technology system with high yield, stable production, low consumption, high economic benefit and good ecological benefits. The precision seeding technology is based on better soil fertility, fertilizer and water conditions, appropriate reduction of basic seedlings (80,000 to 120,000 basic seedlings/mu), relying on tillering and panicle-based cultivation, and using comprehensive cultivation techniques to make the panicle-foot, Spike large, many grains, grain weight, high yield. In semi-precision (13-16 million basic seedlings/mu) sowing techniques, the average fertility field, or high-fertility late-broadcast field, as well as the cultivation and technical conditions and poor management of the field, based on a certain number of panicles , attacking the ear weight, and obtaining high yield.
1, fertility and fertility.
2, choose a good seed. Early buckwheat is selected from buckwheat 38, tobacco farmers 19, Xinmai 18, Huaimai 20, buckwheat 19, buckwheat 50, buckwheat 52 and other varieties; late buckwheat can choose buckwheat 33, buckwheat 30, Yangmai 158, etc. Variety.
3, reduce the amount of broadcast, timely early broadcast. At present, the high-yielding field crops with a yield of more than 500 kilograms per mu in the Huaibei wetland of our province can be controlled at 12-150000. If the seedlings are planted early to the end of September and early October, the basic seedlings can be reduced To 10-12 thousand/mu. Late buckwheat seedlings are planted between October 20 and the end of October.
4, scientific fertilization. The quality of farmyard fertilizer per acre 2000-2500 kg, 15 kg of pure nitrogen, 10-15 kg of phosphorus pentoxide, potassium oxide 5-7.5 kg, the ratio of nitrogen, phosphorus and potassium 1.0:0.7-1.0:0.3-0.5, Apply 1-2 kg of zinc fertilizer per acre. Fertilization method: 50% of nitrogen fertilizer is used as base fertilizer, and the rest is topdressing, and phosphorus, potassium, zinc fertilizer and organic fertilizer are all applied. Promote the deep application of chemical fertilizer technology, and "nitrogen fertilizers move backward" technology, postponed to the jointing time, before and after the booting period. Late buckwheat fertilizer can be returned to the early stage. Vigorously promote the technology of returning straw to the field, returning 200-300 kilograms of straw per acre.
5, nurturing strong seedlings. Pre-winter seedling indicators, pre-winter and low-winter winter cultivars generally have 6 to 7 main leaf stalks, 5 to 8 tillers per plant, and 70-80,000 larvae per acre before winter. The peak period reaches 900,000 (not more than 1 million).
6, enough sowing, improve the quality of sowing. When planting, the sensation should reach 75%%-80% of the field water holding capacity. It is required that the following species should be uniform, consistent in depth and depth, and accurate in sowing.
1, fertility and fertility.
2, choose a good seed. Early buckwheat is selected from buckwheat 38, tobacco farmers 19, Xinmai 18, Huaimai 20, buckwheat 19, buckwheat 50, buckwheat 52 and other varieties; late buckwheat can choose buckwheat 33, buckwheat 30, Yangmai 158, etc. Variety.
3, reduce the amount of broadcast, timely early broadcast. At present, the high-yielding field crops with a yield of more than 500 kilograms per mu in the Huaibei wetland of our province can be controlled at 12-150000. If the seedlings are planted early to the end of September and early October, the basic seedlings can be reduced To 10-12 thousand/mu. Late buckwheat seedlings are planted between October 20 and the end of October.
4, scientific fertilization. The quality of farmyard fertilizer per acre 2000-2500 kg, 15 kg of pure nitrogen, 10-15 kg of phosphorus pentoxide, potassium oxide 5-7.5 kg, the ratio of nitrogen, phosphorus and potassium 1.0:0.7-1.0:0.3-0.5, Apply 1-2 kg of zinc fertilizer per acre. Fertilization method: 50% of nitrogen fertilizer is used as base fertilizer, and the rest is topdressing, and phosphorus, potassium, zinc fertilizer and organic fertilizer are all applied. Promote the deep application of chemical fertilizer technology, and "nitrogen fertilizers move backward" technology, postponed to the jointing time, before and after the booting period. Late buckwheat fertilizer can be returned to the early stage. Vigorously promote the technology of returning straw to the field, returning 200-300 kilograms of straw per acre.
5, nurturing strong seedlings. Pre-winter seedling indicators, pre-winter and low-winter winter cultivars generally have 6 to 7 main leaf stalks, 5 to 8 tillers per plant, and 70-80,000 larvae per acre before winter. The peak period reaches 900,000 (not more than 1 million).
6, enough sowing, improve the quality of sowing. When planting, the sensation should reach 75%%-80% of the field water holding capacity. It is required that the following species should be uniform, consistent in depth and depth, and accurate in sowing.
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