First, fertilization measures
(1) Reapply basal fertilizer, increase phosphate fertilizer and organic fertilizer: use fertilizer to supplement water, promote rapid production at the seedling stage of the crop, deepen the foliage and form a basic drought resistance. Organic manure has a good water-retaining function. Mushi more than 1,000 kilograms of high-quality organic fertilizer can significantly increase drought resistance.
(2) Foliar fertilization: Spraying drought-resistant foliar fertilizers containing drought-fighting functional substances such as fulvic acid, amino acids, and vitamins can achieve simple, effective, and economical drought resistance effects.
Second, management measures
(1) Coverage should be covered to reduce evaporation of soil moisture. Use weeds, straw, and shade nets to cover and reduce soil moisture loss and transpiration.
(2) Shallow cultivator: Lightly cultivating crops in dry land, cutting the capillary in the surface layer of the soil, inhibiting the transpiration of soil moisture, and enhancing the drought resistance.
(3) Deep-cultivation ripping: It is expected that when it rains, deep cultivating should be carried out in time to increase soil conservation capacity, and soil storage should be used to make the soil absorb moisture.
Third, water conservation measures
1. Field surface irrigation technology. The improvement of earth canal to prevent seepage canal water irrigation can save about 20% of water. In places where large-scale flood irrigation or large-scale furrow irrigation is used, it is widely used to promote widening and narrowing, long and short, long ditch to short ditch, control of field irrigation, and increase the effective utilization rate of irrigation. Effective measures.
2. Irrigate water at critical times. Under conditions of water scarcity, crops should be selected to be most sensitive to water in their lifetime and to have the greatest impact on yields, such as rice, maize, etc., from the initial jointing stage to the heading stage and from the grain filling stage to the milk ripening stage, and the flower bud differentiation stage of soybeans. To full bloom and so on. Water irrigation at critical times can increase the effective utilization of irrigation water.
Fourth, adjust the crop layout
All localities must adhere to the principle of "there is water, water, and drought" according to the development of drought conditions and timely adjust the planting layout of crops. For severe water shortages, it is necessary to find ways to take remedial measures, and try to increase the sown area of ​​food crops without mistakes.
1. Water the seed: Dig the nest first, water the nest, and then place the seed in the nest and cover it with soil.
2. Straw placement: The corn stalks or sorghum stalks into a short section of 3 to 5 cm long, soaked in water, while the seeds germinate in water, so when the seed radicle top broken seed coat, remove and soak Straw, put into the seed, then the next kind. The germ of the seed drew moisture from the straw and soon emerged.
3 soaking germination: soak the seeds before sowing, until the seeds suck enough water needed for germination, remove, stuffed with sacks and other stuff stuffy species, the next day you can sow. For soils with poor soil moisture and unconditional artificial watering, this method is not suitable.
4. Transplanting seedlings: Nursery seedlings should be planted in plots closer to Daejeon and transplanted after raining. This method is suitable for large-grain seed crops such as corn and melons.