The autumn of wheat should be given a good seven

Seeding is the basis for wheat production. Therefore, timely planting and proper sowing of wheat are especially important. In order to do a good job in autumn sowing, cultivate strong pre-winter seedlings, establish a reasonable group structure, and achieve increase in grain growth and increase production. According to the actual wheat production in our province, the following seven levels should be considered.

First, the selection of improved varieties of rice is an internal cause of wheat production. Only the ecological types of varieties are compatible with the geographical and ecological types, and wheat can increase production. Therefore, in the selection of varieties, it is necessary to adjust measures to local conditions and rational distribution, so that the main plant varieties prominent, with a reasonable variety, and resolutely put an end to the variety of species and cross-border planting, and try to use coated seeds.

Second, the fine soil preparation and re-cultivation Tian Qiu crops will be harvested immediately after the ripening, immediately deep-turning, with the plough with the hoe, so that soft and fine broken, virtual reality. Weibei drought can be adjusted to reduce the wheat area, expand the area of ​​spring corn, in order to increase grain production and increase farmers' income.

Third, fertility and fertility ground According to the former squat soil fertility basis, carry out scientific formula fertilization, according to yield indicators fertilize fertility, try to increase organic fertilizer, increase nitrogen, phosphorus, potassium fertilizer supply levels, high fertility control nitrogen and phosphorus increase potassium Tian Wei, full nutrition with fertilizer; nitrogen in the fertility to increase phosphorus and potassium; low fertility in both nitrogen and phosphorus, balanced fertilization. Under normal circumstances, high-yielding fields apply 3,000 kg of organic fertilizer per 667 square meters, 50-70 kg of ammonium bicarbonate or 20-26 kg of urea, 40-50 kg of calcium sulfate, 10 kg of potassium fertilizer, and 1.5 kg of zinc fertilizer; organic fertilizer is applied at 667 square meters of middle grain field. 3000-4000kg, 50-60kg of ammonium bicarbonate or 20-22kg of urea, 50kg of calcium sulphate, 5-10kg of potash fertilizer; 4000-5000kg of organic fertilizer applied per 667m2 of low-yield field, 40-50kg of ammonium bicarbonate or 15-20kg of urea; 50kg. Organic manure, phosphorus and potash fertilizers were all used as base fertilizers, 60-70% of nitrogen fertilizers were used as base fertilizers, and 29 -38% were applied with irrigation during pre-winter or jointing period, and 1-2 were used as foliar spray fertilizers; dry land 85 -95% of the basal fertilizer, 4-14% respectively in the winter or early spring depending on the seedlings, flooding, 1-2% for foliar spray fertilizer.

4. Soil Treatment Offence In order to prevent and control underground pests, ensure that all seedlings are planted in one go, combined with soil preparations such as phoxim and other highly effective, low-toxicity, low-residue pesticides, which can effectively control underground pests such as cockroaches and wireworms.

V. Seed treatment related to the uncoated seeds, the choice of drug treatment on the road, can effectively control the wheat sheath blight and underground pests, and both cure rodents.

Sixth, specifications sowing off the kind of good is the key to autumn sowing, as the saying goes "wheat harvest in the species." Good standards include seedlings, seedlings, seedlings, seedlings, and seedlings. Only timely and appropriate specifications sowing can meet the requirements.

1. The sowing date shall be determined according to the characteristics of the varieties according to the method of “determining the accumulated temperature with the leaf age and the sowing date of accumulated temperature”. The suitable sowing date for the winter varieties of Sichuan-Yunnan Irrigation District is from September 25 to October 5, the semi-winter species are from October 1st to October 10, and the spring varieties are from October 5 to October 10; The suitable sowing date is from September 23 to 30, and the semi-winter breed is from September 27 to October 3. Pay attention to prevent premature sowing in the summer, sowing the late phenomenon.

2, the amount of sowing should follow the production of land to produce, set the ear, set the seedlings with the ear, the principle of seed set seedlings, a reasonable determination of sowing. Irrigation area winter varieties 6-7kg per 667 square meters, 7-7.5kg semi-winter varieties, spring varieties 7.5-8kg. Winter 6.5-7.5kg for dry land and 7.5-8.5kg for midwinter, avoid excessive sowing.

3, specifications sowing to improve the sowing technology and quality, so that the same depth of sowing, seed uniform, no broken, no missing broadcast, no replay, broadcast straight. Sowing method Irrigation area adopts "three dense and one rare" or "four dense and one thin," and dry land implements 15-20 cm grooving. It is required to achieve the spacing specification and to plant it in four weeks. Irrigation districts will be allowed to open water in time after sowing to create good conditions for irrigation in winter and spring.

Seven, check seedlings fill seedlings after the emergence of wheat, timely check seedlings make up for deficiency, thick and thin to the cockroach, to reach seedlings, seedlings, seedlings uniform, Miao Qi, Miao Zhuang. At the same time, it was found that the field where the underground pests were harmed was timely sprinkled with poison baits or medicinal liquids to control the roots.

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