High-yield summer corn cultivation method

Abstract

The invention discloses a high-yield summer corn cultivation method, which comprises the following steps: applying tuza fertilizer, diammonium phosphate, urea and potassium sulfate to each mu of land, and ploughing the materials, which are mixed uniformly, under the ground; selecting compact-type improved high-yield corn seeds; before sowing, soaking the seeds in warm water at a temperature of 18-25 DEG C for 4-7 hours, carrying out ventilating and drying on the seeds; mixing the seeds with anticorrosive fungicide and insect repellant; sowing in large and small lines at intervals and in a staggering manner, wherein the distance between each two adjacent large lines is 40cm-50cm, the distance between each two adjacent small lines is 20cm, the planting distance is 23cm-24cm, the sowing depth is 3cm-5cm, and 2 to 3 seeds are sown in each seed cave and are positioned at intervals of 2cm; carrying out thinning and filling the gaps with seedlings after corns grow to have 3-4 leaves, then carrying out final singling of the seedlings; and carrying out intertillage on the corns when the corns grow to have 5-8 leaves, dressing 8kg-10kg of urea on each mu of land, and when the corns grow to have 8-9 leaves, and ploughing a groove of 10cm-12cm among the large lines to bury weeds so as to achieve an effect of corn ridging.

Description

technical field [0001] The invention relates to a high-yield summer corn cultivation method. Background technique [0002] Corn is one of the three major food crops in my country. It has a broad market in the optimization of people's food structure and animal husbandry. However, my country's per capita arable land is 1.38 mu, and the traditional summer corn cultivation yield is about 400-600 kg per mu. The highest experimental yield of corn in North China is about 1400 kg. Therefore, the research on the cultivation technology of high-yield corn is of great significance for ensuring food security and promoting the development of breeding economy. [0003] The main reasons for the low yield of summer maize planting in my country are: the row spacing and plant spacing arrangement of corn sowing are poor in light and air permeability and the planting density is low, and the management, fertilizer application and water retention during the corn growth period are unreasonable. Co...

AI Technical Summary

Problems solved by technology

[0003] The main reasons for the low yield of summer corn planting in my country are: the row spacing and plant spacing arrangement of corn sowing are poor in light and air permeability and the planting density is low, and the management, fertilizer application and water retention during the corn growth period are unreasonable.

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