Spring peanut-summer corn relay intercropping planting method

Abstract

The invention relates to a spring peanut-summer corn relay intercropping planting method, and belongs to the technical field of crop planting. The planting method comprises the following steps: ridging and mulching plastic film on the ridges to plant the peanut, planting two rows of peanut for each ridge, interplanting two rows of corn for every two ridges of peanut, wherein the ridge bottom width is 84-86 cm; the ridge face width is 54-56 cm; the ridge height is 9-11 cm; the peanut line space on the same ridge is 34-36 cm; the space between the corn and the peanut is 59- 61 cm; the row space of the peanut is 14 cm; the row space of the corn plants is 13-14 cm; the peanut is sown when the ground temperature at 5 cm is 15-18 DEG C; the corn is sown on the fortieth to fiftieth day after the peanut is sown. With adoption of the planting method disclosed by the invention, two crops a year can be yielded, time and space as well as photo-thermal resource are fully utilized, and the land utilization rate is effectively improved; the peanut yield per mu is increased by 112%, and the total revenue is increased by 72%; the soil fertility and the soil nitrogen content are improved; the soil physical properties and the soil looseness can be improved; the problems that when the wheat-corn planting mode is carried out for continuous years, the soil is hardened and the soil fertility is decreased are effectively solved, and soil cultivation and land use are combined.

Description

technical field [0001] The invention relates to a spring peanut-summer corn intercropping planting method, which belongs to the technical field of crop planting. Background technique [0002] Food security, energy security and oil security are the three major security issues that must be resolved in my country's social and economic development. With a large population in my country, the demand for grain and oil is huge, and the contradiction between grain and oil has become increasingly prominent. However, the area of ​​arable land is limited, and the competition for land for grain and oil is prominent. From south to north, the ripening system gradually changes from more than one year and three crops a year to three crops in two years and one crop a year; among them, the northern part of the Huanghuai River and the North China Plain mainly use three crops for two years. In order to achieve two crops a year in these areas, it is necessary to change the planting system, rat...

AI Technical Summary

Problems solved by technology

Based on the kilogram price of corn (2.2 yuan) and the kilogram price of peanuts (6