Six key points of autumn sowing wheat cultivation techniques

Fertilize the fertilizer to apply enough fertilizer, nitrogen, phosphorus, potassium, re-application of phosphate fertilizer, supplement micro-fertilizer, re-application of organic fertilizer in the place where conditions permit. Tests have shown that the finely ground wheat field generally requires soil fertility to reach 1.22% of organic matter, and total nitrogen, hydrolyzed nitrogen, available phosphorus and available potassium reach 0.084%, 47.5×10E-6, 29.8×10E-6, and 91×104, respectively. At the same time, it is necessary to improve the quality of the land preparation, properly deepen the ploughing layer, and level the ground without any dark and dark.

The varieties with good productivity, high lodging resistance, large spikes and large grains, compact plant type, strong photosynthetic capacity, high economic benefit, early maturity, good yellowing, and good resistance to disease and disease are selected.

The early winter and half-winter varieties of the Huaibei wheat area will be planted at the beginning of October, and will end at the end of October 15. The spring varieties will start planting around October 15 until the end of the frost. The spring varieties of the Suzhong wheat area in Huainan began to be planted on October 20 and ended before the end of October. The spring varieties of the hilly wheat area in Huainan began to be planted on October 25 and ended in early November. The spring varieties of the Taihu wheat area in southern Jiangsu began to be planted around October 25 and ended before November 5. The ultra-slack field can be planted in advance.

The reasonable amount of sowing is 4 to 7 kg per mu, the basic seedlings are 6 to 140,000 per mu, and the basic seedlings in Huaibei wheat area are between 6 and 100,000, which is 1/5 of the expected number of panicles; ~ 120,000 plants, which is 1/3 of the expected number of panicles; 10 to 140,000 strains in the southern Jiangsu wheat area, which is 2/5 of the expected number of panicles. Seeding should be carried out by expanding the line and sticking to the foot sowing to ensure consistent sowing.

Cultivating strong seedlings is a kind of medicinal seed dressing. It can promote root growth by using seedlings such as dwarf seedling, paclobutrazol, chlormequat, and Zhuangfengan. It can control pests and diseases with seed dressings such as rickett, mold, and phoxim. It should be noted that the amount of seed dressing should not be too large, and it is now mixed with the current broadcast, otherwise it will inhibit the emergence of coleoptiles and affect the advantages of tillering; the second is to strengthen the suppression of Wangchang seedlings and the coverage of winter and spring wheat seedlings. Repression should be mastered in the warm and sunny weather, heavy pressure Wang Miao, control the roots, control the Wang to promote the strong, reduce the freezing damage. Straw, organic fertilizer, ditch mud and other covered wheat seedlings can play the role of fertilization, warming, antifreeze, sputum, weeding and strong seedlings.

High-efficiency fertilization should be carried out as far as possible to avoid the application of waxy nitrogen fertilizer and re-greening nitrogen fertilizer on the large-scale production to reduce inefficient tillering and ineffective growth. The target yield of 500 kg per mu in Huaibei is about 22 kg of pure nitrogen per mu, and the target yield of 400 kg in Huainan is about 18 kg of pure nitrogen. The ratio of nitrogen, phosphorus pentoxide and potassium oxide is about 1:0.5:0.6. The ratio of nitrogen fertilizer (seedling) fertilizer and topdressing fertilizer is controlled at about 5:5. In the top dressing, the balanced relay fertilizer accounts for 10% of the left stone, and the jointing and booting fertilizer can be divided into two applications, of which the jointing fertilizer (the inverted 3 leaf stage) accounts for about 25%. The flag leaf (safe flower) fertilizer accounts for 10%.

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