Cultivation method for improving growth and high-temperature resistance of summer corn

Abstract

The invention discloses a cultivation method for improving the growth and high-temperature resistance of summer corn and belongs to the technical field of corn planting. The cultivation method for improving the growth and high-temperature resistance of the summer corn specifically comprises the following steps of seed selection, seed dressing, fertilizing and ditching, sowing, watering, application of calcium hypophosphite, covering with mulching film, artificial pollination, topdressing and disease and pest treatment, and spraying of a mixed solution of an amino acid mixed solution and brassinolide onto corn in a high-temperature droughty weather. According to the method, calcium hypophosphite is dissolved in water to trigger a hydrolysis reaction with water in soil and then hydrolyzed into hypophosphite ions and calcium ions, the hypophosphite ions can react with residual carbonate apatite to generate free phosphorus ions and calcium carbonate, and the free phosphorus ions in the soil can be effectively absorbed by corn roots so that the growth of corn roots can be improved. Calcium carbonate has water absorption and can absorb water in the soil for the growth of the corn, so that the high-temperature resistance and lodging resistance of the corn are further improved.

Description

technical field [0001] The invention relates to the technical field of corn planting, in particular to a cultivation method for improving the high temperature resistance ability of summer corn growth. Background technique [0002] Corn is an annual herbaceous plant belonging to the Poaceae Zea genus. It has tall plants and strong stems. It is an important food crop and feed crop. It is rich in protein, fat, vitamins, trace elements, cellulose, etc. Great potential for functional foods. [0003] Ecological factors have an important impact on the growth and development of crops and the formation of yield and quality. Among them, climatic factors (light, temperature, water, air) play an increasingly important role in corn production, and temperature is one of the main ecological factors. Growth and development have an important impact. Maize originated in the tropical regions of Central and South America, and has the characteristics of temperature-loving. Short-term abnormal hi...

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Problems solved by technology

[0004] Studies have shown that corn breeding for high temperature resistance is an effective way to improve the high temperature resistance of varieties and reduce the losses caused by high temperature. The high temperature resistance and non-high temperature resistance of corn are mainly reflected in the yield. The opposite is true for high-yield, non-high-temperature-resistant varieties. The identification of high-temperature resistance of maize germplasm is a key step in evaluating and breeding new high-temperature-resistant maize germplasm. At present, there are few researches on the high-temperature resistance screening of maize germplasm at home and abroad. At present, there is no ideal identification method and screening method for the high temperature resistance of maize germplasm. Therefore, research in this area needs to be strengthened

[0005] The planting method in the prior art generally adopts open field planting, but when planting in the open field, the planting site after planting is not protected, and the planting site is subject to direct sunlight, which may accelerate the loss of water in the soil. Corn under high temperature environment The slow metabolism of corn may reduce the survival rate of corn, which may affect the yield per mu; the planting method in the prior art does not deal with the corn seedlings in the drought period, which may cause the corn to die due to drought and water shortage, and survive. The corn may not set grains; the planting method in the prior art does not have an accurate planting density, high density will cause the corn to fall easily, and low density will affect the yield of corn, and then a method that can improve the growth of summer corn Cultivation methods with high temperature tolerance are particularly important

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