Interplant high-yielding cultivation method for potato and corn

Abstract

The invention discloses an interplant high-yielding cultivation method for potato and corn, comprising the steps of preparing seeds and preparing earth, sowing, topdressing, preventing and treating diseases and the like. In the cultivation method disclosed by the invention, by combining the self-growth characteristics of the potato and corn, planting conditions are scientifically and reliably controlled, the effective utilization of soil is improved and the defect of the potato and corn in a single cultivation mode is overcome, so that the yields of the potato and corn are effectively increased, simultaneously the influence of adverse conditions such as a great amount of rainfall in growth seasons, a great amount of fog and dew, large humidity in a filed, less sunshine duration and the like is overcome, the resistivity of potato plants on late blight is improved, and virus infection opportunity is reduced. The acre yield of potato is not less than 3100kg, the acre yield of corn is notless than 450kg, and the yields of the potato and corn are stable, thus the cultivation method is applicable to popularize and implement in southwestern mountainous areas.

Description

technical field [0001] The invention relates to crop cultivation techniques, in particular to a cultivation method for interplanting potatoes and corns. Background technique [0002] Interplanting of potato and corn is cultivated in most areas of our country. It is generally suitable for growing and planting in hills and mountainous areas. In the past, a single-row or narrow-spacing interplanting mode was mostly used. Because the narrow row of corn cannot be sown early, it is not easy to manage and harvest, and the mutual influence of light, etc., it gradually developed into a wide-width multi-row interplanting mode, that is, a wide-width interplanting mode. Today, potato and corn intercropping has become the main planting mode in the southwest mountainous area. However, due to differences in cultivation methods, there are often situations where the competition between potatoes and corn is obvious or land resources are wasted. [0003] At the same time, potatoes are mainly...

AI Technical Summary

Problems solved by technology

Today, potato and corn intercropping has become the main planting mode in the southwestern mountainous area. However, due to differences in cultivation methods, there are often situations where the competition between potatoes and corn is obvious or land resources are wasted.

[0003] At the same time, potatoes are mainly propagated by tubers in large-scale cultivation, that is, asexual reproduction, which has strong adaptability to the soil and requires cool and cold climates; but after several generations of planting, the variety degrades seriously. During the reproduction process, viral diseases can easily infect the asexual organs of potatoes such as roots, stems, leaves, tubers, etc. and accumulate and pass the virus to the next generation, resulting in continuous degeneration of varieties. This is the Achilles heel of potato asexual reproduction. There are many ways in the field environment that may cause potatoes to be infected with viruses; more importantly, net planting and interplanting at narrow distances often cause severe shading between plants, excessive humidity between lines, and easily induce and aggravate late blight. Potatoes that should yield high yields often fail to yield high and stable yields