Dry wheat lacks water due to drought, poor ability to supply water for fertilizers, and low and unstable yields, but it has great potential for yield increase. So, how to increase dryland wheat production? 1. Deep and shallow rotation tillage, deep plowing with soil impounding can break the plow bottom layer, increase water permeability, increase water storage capacity, and can promote root barricading and expand the absorption range of the root system and increase the utilization rate of water and fertilizer. However, deep plowing must be based on local conditions, generally in the early years of land preparation, precipitation, and full-featured years should be deep plowing, plowing depth of 22 to 25 centimeters, followed by ploughing, plowing after ploughing; drought after cultivating, often due to soil It is not true and seriously lost, so much more deeper and deeper tilling. As a result, deep plowing is not as good as shallow plowing. Practice has proved that in dry land wheat in the 3 to 4 years, meet the foot hoe deep plough for one year, after the shallow ploughing for 2 to 3 years, can not only achieve the purpose of deep ploughing and soil improvement, but also increase the chance of soil subsidence, is the increase of dry wheat yield Important measures. 2. To increase fertilization, use fertilization to transfer dryland wheat fields to apply as much organic fertilizer as possible, apply inorganic fertilizer in a sufficient amount, especially apply phosphate fertilizer to improve the soil and fertility, and improve the capacity of water storage and fertilizer and the utilization of water. . General plots, organic fertilizer can be applied per acre 2500 ~ 3000 kilograms, ammonium bicarbonate and superphosphate 50 kg each, and apply appropriate potassium fertilizer and trace fertilizer; if poor, can be applied in three or four years of continuous application of standard nitrogen fertilizer 40 ~ 60 kg, 50 ~ 100 kg of phosphate fertilizer. In high-yield wheat fields in dryland, “one-shelled bombardment†fertilization method can be adopted, that is, all fertilizers are applied to the soil as a base fertilizer in combination with soil preparation. Nitrogen fertilizers should be applied in depth and phosphorus fertilizers should be applied shallowly to facilitate the cultivation of pre-winter seedlings. 3. Selection of improved varieties to breed water-resistant drought-resistant varieties have developed roots, narrow leaves, thick epidermis, small stomata, weak respiratory and transpiration, strong tiller force, high rate of spike formation, and can better adapt to water shortage Less fertilizer in the dryland environment; According to comparative surveys in different regions, planting drought-resistant varieties is generally 20%~30% higher than planting varieties that are not drought-resistant. 4. Appropriate timely sowing, the self-adjusting ability of the water-saving dryland wheat groups in seedlings (plants) is poor, and the appropriate sowing date and sowing amount range are correspondingly narrower than that of irrigated wheat; timely, appropriate seeding, establishment of seedlings, strains The reasonable structure of water-saving and fertilizer-saving populations in the panicles, grains and grains is the central link in the increase of wheat yield. It has been proved that winter cultivars should be sown when the daily average temperature is stable at 16~18°C, so that the effective accumulated temperature above 0°C before winter can be guaranteed to be above 600°C, and the main stem and leaves can reach 6~8 pieces; Appropriate late broadcast 3 to 5 days. In the appropriate sowing period, the basic seedlings per acre are controlled at about 150,000, the early sowing is reduced by 1 to 20,000, the late sowing is increased by 20,000 to 30,000, and the late buckwheat can be increased to 20,000 to 250,000; The number of pre-acre stems is generally controlled at 2 to 2.5 times the number of final panicles. 5. Promote dryland cultivation and new technologies. Drought resistance and water conservation Firstly, drought training should be conducted before sowing: 40 parts of fresh water should be mixed in three batches of 100 parts of wheat. After each addition of water, they must be absorbed after a certain period of time. Dry to original weight at ~20°C. In this way, wheat can produce a strong adaptive response to drought conditions, thereby enhancing drought resistance. The second is the use of pesticide treatment seeds: (1) water retaining agent seed dressing. Use 50 grams of water retention agent per acre, add 5 kilograms of water, mix with wheat seed, sow generally more than 10%, up to 25%; (2) fulvic acid (also known as drought-resistant agent No. 1) seed dressing. 200 grams of fulvic acid, 5 kilograms of water, 50 kilograms of mixed wheat seeds, and mix well and air dry to sow, can increase the water absorption capacity of seed coat, accelerate its physiological activities, promote the growth of young roots, and increase the yield by 9.3%~13.3%; (3 ) Phosphorus-boron mixed solution. Use high-quality superphosphate 3 kg, add water 50 kg, remove impurities after dissolution, add 50 g of boric acid in the filtrate, stir 5 kg of solution, stir 50 kg of wheat seed, and soak, so that the wheat seedlings grow robustly. Drought resistance increased, generally increasing production by 10% to 20%. (4) calcium chloride mix (immersion) species. Use 0.5 kg of calcium chloride, add 50 kg of water, mix with 500 kg of wheat, mix and boring for 5-6 hours, or use 0.5 kg of calcium chloride, add 500 kg of water, 500 kg of soaked wheat seeds, after 5-6 hours Drying after sowing can generally increase production by about 10%. The third is the foliar spraying of drought-resistant agents: (1) in the jointing and filling stages of wheat, with foliar spray of 0.1% calcium chloride solution, the yield can be increased by 5% to 10%; (2) in the booting stage of wheat, per acre 50 grams of anti-drought agent No.1, dilute 2.5~10 kilograms, fully dissolve and make ultra-low spray (if both drought and seedling are affected by drought at the same time, the whole growth period can be sprayed twice), and the opening angle of the stomata on the blade can be reduced. The stomatal resistance increased 2.1-fold, the transpiration intensity decreased 41.6%, the root activity increased 2.1-fold, and the yield increased by 16.6%. 6. To strengthen management, in order to manage the increase of water and dryland wheat, the management of wheat is relatively simple. In addition to checking seedlings to make up the seedlings, controlling pests and diseases, and picking up fertilizers, the important measures are to stage the program from sowing to overwintering and returning to greening and jointing.锄 镇 镇 镇 镇 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄 锄. Repression has the dual effect of lifting and protecting the earth, but it must be based on local conditions. For wheat fields that are generally deeper and more unrealistic, they can be repressed early after planting so as to facilitate soil conservation; after winter, wheat fields that have been frozen or thawed by loose soil or are lifted upwards should be crushed before and after greening.锄 锄 以 以 以 以 以 以 以 墒 墒 墒 墒 墒 墒 墒 墒. John Dory Fish,Frozen Fish Fillets,John Dory Fish Fillet,Cream Dory Fish Fillet Skin Zhejiang Zhoushan Jiaze Aquatic Co., Ltd. , https://www.tianjia-aquatics.com