Wheat-corn relay interplanting planting method

Abstract

The invention relates to the technical field of agricultural planting, and discloses a wheat-corn relay interplanting planting method. In the method, a mode of alternating wheat planting zones and corn planting zones is adopted, and wheat is planted before corn is planted; four rows of wheat are used as one planting zone; row spacing between the second row of wheat and the third row of wheat ranges from 25 to 35 centimeters in the planting zone, and the row spacing between the rest two adjacent rows of wheat is 20 centimeters; an empty row with the width of between 125 and 135 centimeters is reserved between the two wheat zones and is used for planting the corn zones; two rows of corn are used as one planting zone; row spacing among corn is 45 centimeters; and the space between the adjacent corn and wheat ranges from 40 to 45 centimeters. By the method, the row number of planting the wheat is reduced, and the wheat is planted in a mode of wide-narrow row spacing, namely compared with the original row spacing, the row spacing of the corn is reduced by 5 centimeters, so the space between the wheat and the corn is increased; and the planting environment of intergrowth period of the wheat and the corn is optimized, the shading effect of the wheat on the corn is relieved, and the specific yield and yield per unit area of both the wheat and the corn are improved simultaneously.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, in particular to a wheat-corn intercropping planting method. Background technique [0002] The four southwestern provinces (cities) of my country, Sichuan, Guizhou, Yunnan, and Chongqing, have a lot of people and little land, with a large proportion of dry land in hills and mountainous areas, and a high degree of multiple cropping. They are typical dryland and multi-crop agricultural areas in southern my country. The so-called multiple cropping refers to the planting method of continuously planting two or more crops on the same field in one year, such as wheat-jade twice a year, wheat-cotton twice a year, wheat-rice-rice three times a year, etc. ; In addition, there are three crops in two years, five crops in three years, etc. After the last crop is harvested, in addition to directly sowing the next crop on the ground of the previous crop, regeneration, transplanting, intercropping...

AI Technical Summary

Problems solved by technology

[0004] However, in the wheat-corn symbiotic period using the "double three 0" planting method, wheat has a strong shading effect on corn seedlings, and the quality of corn seedlings is not high, which seriously affects the unit yield of corn. At the same time, the five rows of wheat are all equal The row spacing and the middle row wheat growth are at a serious marginal disadvantage. The wheat growth varies greatly between different rows, the population quality is poor, and the middle row is prone to lodging in the later stage, so that the unit yield of wheat is not high. These two reasons make the yield per mu of the two crops not tall

If the width of wheat is reduced at will, the number of rows is reduced, the row spacing of wheat is expanded, or the number of rows of corn planting is increased, the planting environment of wheat and corn will not conform to the natural law and the growth characteristics of the crops, and finally lead to a decline in the yield per mu of the two crops

This planting method of sacrificing one crop while ensuring the yield of another crop limits the economic benefits of the two crops, making the yield per unit of crops under the traditional wheat-corn intercropping planting method not high, which ultimately leads to low yield per mu and does not exert its full potential. Advantages of efficient use of resources in intercropping planting mode

[0005] In addition, because the number of rows of wheat in the "double three 0" planting method is too close, the distance between the openers of the agricultural machinery relying on the "double three 0" planting method is also closely spaced, and the openers are easily covered by stubble and debris during sowing operations. Grass and large clods are clogged, and the machine has poor passability, resulting in uneven seeding, lack of seedlings and broken ridges, and many pimple seedlings; secondly, the width of wheat is too large, and the crown width is too wide in the later stage. When sowing corn, the mechanical operation It is inconvenient, and even small machinery cannot drive in; third, the distance between wheat and corn is too small, corn is in the jointing stage when wheat is harvested, and mechanized harvesting of wheat is easy to damage corn

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