Traditional Culture Encyclopedia - Weather forecast - What effect will continuous high temperature have on the growth of corn? How to supply water?

What effect will continuous high temperature have on the growth of corn? How to supply water?

When corn is sown at the heading and "cutting" stage, it is necessary to resolutely put an end to the continuous high temperature and heat damage. When the temperature reaches about 37℃, we should take measures to reduce the temperature, and do everything possible to reduce the working temperature in recent days when corn is blooming and pollinating. In the morning, the sprinkler irrigation equipment will cool down and fight drought simultaneously, and corn can also be sprayed with agricultural machinery sprinklers to cool down. In addition, shading measures can also be taken during maize flowering and pollination. When the temperature is lower than 35℃, harvesting and cooling are not necessary.

After tasseling, spray the leaves with potassium dihydrogen phosphate and brassinolide. 300g of 98% potassium dihydrogen phosphate, 30g of 0.04% brassinolide and 30kg of foliar spraying water. Promote the disintegration, bounce, growth and development of male stamens and promote the perfect pollination of female filaments. So that corn has drought resistance and immunity. When corn is sown at the heading and "cutting" stage, it is necessary to resolutely put an end to the continuous high temperature and heat damage. When the temperature reaches about 37℃, we should take measures to reduce the temperature, and do everything possible to reduce the working temperature in recent days when corn is blooming and pollinating. In the morning, the sprinkler irrigation equipment will cool down and fight drought simultaneously, and corn can also be sprayed with agricultural machinery sprinklers to cool down. In addition, shading measures can also be taken during maize flowering and pollination. When the temperature is lower than 35℃, harvesting and cooling are not necessary.

After tasseling, spray the leaves with potassium dihydrogen phosphate and brassinolide. 300g of 98% potassium dihydrogen phosphate, 30g of 0.04% brassinolide and 30kg of foliar spraying water. Promote the disintegration, bounce, growth and development of male stamens and promote the perfect pollination of female filaments. So that corn has drought resistance and immunity. Compared with food crops, the hot and persistent high temperature has affected some food crops, which is certain. A large amount of water loss makes some weak seedlings dry up, leading to leaf wilting and endangering growth and development. In case of pollination flowering period, it will also affect the whole pollination process of plants, resulting in limited yield.

On a hot afternoon, it is not easy to water crops, especially melons and vegetables. At this time, watering is easy to cause discomfort and death of melon seedlings. The main reason is that the soil layer is very hot, and cold water poured into the ground turns into boiling water, which can easily burn the roots of plants and lead to plant death. Watering needs to be done in the morning or afternoon when there is no sun. At this time, the temperature has already dropped, which is an excellent watering stage for green plants.