Technical measures of Water Saving in Wheat cultivation

The comprehensive technical model of drought-resistant and water-saving irrigation for wheat is suitable for drought-resistant irrigation in Taihang Piedmont plain and Heilonggang area of Hebei Province.

1. Select drought-resistant and water-saving wheat varieties. In the plots with good irrigation conditions, high and stable yield and multi-resistance and water-saving varieties such as Han 6172, Shijiazhuang 8 and flood and dry land varieties Li 5316 should be selected, while in the plots with poor irrigation conditions, drought-resistant and water-saving varieties such as Han 4589 and Shi 4185 should be selected.

2. Sow seeds with sufficient moisture. For plots with insufficient soil moisture, the amount of irrigation water is generally 50 cubic meters per mu, and strive to make the water storage capacity of the 200 cm soil layer reach about 90% of the field capacity. Do not rush to sow seeds.

3. Rationally apply fertilizer and apply it all at the bottom. Generally, per mu, 2.0 cubic meters of organic fertilizer, 15kg of diammonium phosphate, 15kg of urea, 15kg of potash fertilizer and 1kg of micro-fertilizer are applied. According to the investigation of Qiu County, according to the above fertilization methods, all fertilizers are applied at one time, and there is no topdressing during the whole growth period.

4. appropriate late sowing, in order to make up for the evening. Under the premise of ensuring the safe overwintering of wheat seedlings, appropriate late sowing can reduce the water consumption of wheat fields before winter. The suitable sowing date of wheat in water-saving wheat field is October 10 ~ 20, and the basic seedlings are 35 ~ 500000 (sowing on October 10, the basic seedlings are 350000, and the seedlings are increased by 15000 per day, with 500000 as the maximum seedling limit).

5. Straw returning to the field must be watered with overwintering water in order to stabilize the soil, preserve seedlings safely through the winter, implement measures to preserve soil moisture and irrigate key water. First of all, the wheat field was hoed to preserve soil moisture before winter and early spring. Secondly, watering in the critical period to give full play to the role of irrigation water to increase production. Wheat is generally watered in spring, jointing, flowering and grouting can be done. Bai Wenqi