Method for interplanting soybean with corn

Abstract

The invention discloses a method for interplanting soybeans with corn. The method comprises the following steps: (1) selecting a planting area, namely, selecting an area with a long frost-free season and rich light and heat resources; (2) selecting a variety, namely, selecting a corn variety which is applicable to interplanting and has compact and half-compact middle short stalks, and selecting a spring soybean or summer soybean variety which is good in shade tolerance in later period; (3) selecting an interpanting mode: performing wide-narrow-row-spacing interplanting mode on the spring soybean or summer soybean variety and the corn variety; (4) performing early sowing at appropriate time, namely, sowing the spring soybean or summer soybean variety and the corn variety in different periods, and sowing the soybeans before the corn; (5) selecting a herbicide, namely, selecting a Dual Gold herbicide as a sealing herbicide which can do relatively small harm to the corn and the soybeans; (6) performing fertilizer-water management. By adopting the planting method disclosed by the invention, the light and heat conditions of South China are sufficiently utilized, not only is the utilization efficiency of lands improved, but also the income can be increased, moreover the rain season can be avoided to a certain extend as the spring soybeans are sown early appropriately, soybean seeds with a relatively low inferior seed rate can be harvested, and the quality of the spring soybeans can be improved.

Description

technical field

[0001] The invention belongs to the technical field of crop cultivation, and in particular relates to an intercropping method for staggered sowing of southern corn and soybean. Background technique

[0002] Intercropping technology can improve the efficiency of land use and increase the output per unit area of ​​land. It is a high-efficiency planting mode that combines land use and land cultivation. There is a large area of ​​corn planting in the southern region, which provides a broad space for the development of intercropping of corn and soybean. At present, intercropping corn and soybeans are mainly planted at the same time. Under this mode, the high-stalk crop corn grows faster, so that the short-stalk crop soybean is in a shady state earlier. Soybean is easy to lodging and obtains less light energy, which affects the intercropping mode. Due to the increase in soybean yields, farmers are not motivated to plant.

[0003] Based on making full use of the t...

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