Method for intercropping peanuts and cassava in hilly red soil dry land

Abstract

The invention discloses a method for intercropping peanuts and cassava in hilly red soil dry land. The planting mode is characterized in that the safe spatial distance between the cassava and the peanut is at least 40cm; the safe spatial distance between peanuts is at least 40cm; the safe spatial distance between the cassava is at least 400cm; the ratio of the peanut to the cassava is (8.5-9.5):1; soil preparation is performed from December to the January of the next year; the soil is ploughed to great depth for winter; the peanut and the cassava are sowed at the same time; the adaptive phaseis 8-16th, August; and the peanut is subjected to hole sowing; and the cassava is sowed in a manner of inclining 43-47 degrees relative to the ground. The production and income increasing effects areobvious; the yields of intercropped peanuts and pure peanuts have no obvious difference; the yield of the cassava is 1 ton per unit area; the production value is increased by 20.3%; the coordinative development of an energy crop and an oil crop is realized; the light energy utilization of the hilly red soil dry land is obviously improved; and the auxiliary energy conversion efficiency can be improved by 69.42% compared with that of the pure peanut culturing. The method provided by the invention is suitable for the hilly red soil dry land in tropical and subtropical regions.

Description

technical field [0001] The invention relates to dry land intercropping, in particular to a hilly red soil dry land peanut and cassava intercropping method. Background technique [0002] Multi-ripe three-dimensional compound planting represented by interplanting, mixed and interplanting is the main direction of agricultural development in the world today. Improving the multiple cropping index of red soil and harvesting more economic crops is of great significance for the efficient use of limited red soil dryland resources and the increase of total grain production. [0003] Peanuts, also known as peanuts and long-lived fruits, are a kind of Arachis in the leguminous family. The Latin scientific name: Arachis hypogaea is an annual herb. It takes a little more than a month from sowing to flowering, and the flowering period lasts for more than two months. Both yellow sandy loam and red sandy loam with loose texture and good drainage are suitable for peanut cultivation. Ca...

AI Technical Summary

Problems solved by technology

Due to improper selection of planting mode and non-standard planting technology, resulting in low yield and poor benefit

As for planting peanuts on the basis of the existing red soil dry land, through intercropping cassava to achieve high-efficiency allocation and improve the multiple cropping index of red soil, there have been no reports of mature or large-scale application so far.