Irrigation and cooling at a proper time can improve the microclimate in the field and reduce the inter-plant temperature by 1°C to 2°C. Dry crops can be sprayed with water directly on crop stems and leaves with sprinkler facilities or sprayers to maintain the balance of water in the plants through cooling and humidification. During periods of high temperature, some areas have implemented effective methods of irrigating cool water in the morning, deep water irrigation at noon, and horse water in the evening.
Auxiliary pollination For cross-pollination crops such as corn, sorghum, etc., artificial pollination by means of powdered or powdered bamboo shoots can be used to increase the amount of pollen falling on the stigma, increase the probability of pollination and fertilization, and reduce the high temperature on the seed setting rate. influences. According to experiments, artificially assisted pollination increased fertility by 5% to 8% compared to natural pollination.
The urea, human urine, pig (urinary) urine, potassium dihydrogen phosphate solution, and filter leaching liquid of plant ash are used for spraying fertilizers outside the root, and sprays are sprayed several times during crop breakage, heading, and grain filling, and the amount of water is increased. It can increase the moisture content of the ear part of the plant, which is conducive to cooling and humidification. It can also provide the necessary water and nutrients to the leaves in a timely manner to promote the enrichment of the grain nutrition and increase the plumpness.
To strengthen field management and reasonably adjust water and fertilizers can improve the nutritional status of crops, increase their ability to withstand high temperature hazards, and avoid or mitigate the dangers of high temperatures.
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