Control Diseases and insect pests, improve the quality of Autumn sowing and set up High-yield frame to win High yield of Wheat

The quality of wheat sowing in autumn is related to the construction of high-yield shelves. Comprehensive technical measures for the prevention and control of diseases, insect pests and weeds during autumn sowing are the basis for high yield of wheat. Recently, the Agriculture Bureau of Yunyang District, Shiyan City provided farmers with integrated control techniques for autumn sowing wheat diseases and insect pests in time.

Wheat sowing in autumn

I. Agricultural prevention and control technology

1. Fine soil preparation. According to the growth needs of wheat, deep rake flat, crushed, to achieve "deep, transparent, fine, solid, flat", remove weeds and residues in the field, and keep the countryside clean.

2. Select improved varieties. Select varieties with high quality, high yield and disease resistance. Emai series, Yumai series and Chuanmai series are all suitable for our county.

3. sow seeds at the right time. According to the difference of mountains and rivers, the suitable sowing time is October 5-15 in villages and towns above 300m in high altitude, and from October 20 to November 5 in low altitude below 300m. Timely late sowing can delay the occurrence of wheat stripe rust.

4. Reasonable close planting. The soil preparation quality is high, the soil moisture is good, the seed germination rate is high, the germination potential is strong, and the amount of seed used in the suitable sowing period is suggested to be 18-22 jin / mu.

5. Formula fertilization. In line with the principle of fertilizing according to soil, determining fertilizer by yield, stabilizing nitrogen and increasing phosphorus and potassium. The general standard of base fertilizer is 50kg ammonium bicarbonate, 25kg calcium superphosphate, 10kg potassium chloride as base fertilizer and 5kg urea as seed fertilizer.

6. Open the trench box. The matching of "Xianggou, waist ditch and Weigou" can prevent wheat sheath blight, scab and powdery mildew. The face of the paddy field is 3.3 meters, and the waist groove is 15-20 meters; the width of the dry land is 5 meters. The box groove is more than 20 inches deep and 30 inches wide. The waist groove is deeper than the box groove, and the periphery groove is deeper than the waist groove, which ensures that the three grooves are connected and can be irrigated.

Second, the technology of seed dressing with chemicals:

The method of seed dressing to control wheat diseases and insect pests has the advantages of saving medicine, labor, less money, good effect and so on. Especially seed dressing with Likexiu or triadimefon can control wheat stripe rust, powdery mildew, smut, sheath blight and so on. Dry the seeds in the sun and clean them with wind. Mix 70 grams of 15% triadimefon wettable powder per 100 jin of wheat, mix well, pile up for 12 hours, and sow seeds. Methods: wheat seeds were packed in plastic bags, poured into 15% triadimefon wettable powder and rolled up and down until mixed. Per 100 jin of wheat seeds, 150 ml of 50% phoxim mixed with 6-8 jin of water can control underground pests such as golden needle insects.

Wheat weeding

3. Techniques for prevention and control of grass damage:

1. To prevent and cure Niang Mai, wild oats, etc., spray evenly with 40-60 ml 6.9% horse and 45 kg water per mu. The dosage should be less than 100 milliliters per mu, otherwise there will be drug damage.

2. control broad-leaved weeds such as pig seedlings, wisps, mother-in-law, and Miwa cans. In the 2-3 leaf stage of wheat, per mu of wheat is evenly sprayed with 20 ml of 48% paracetamol or 10 g of 10% benzenesulfuron or 1 g of 75% giant star with 45 kg of water.