Small double-row staggered density-increasing planting method for corn

Abstract

The invention provides a small double-row staggered density-increasing planting method for corn. Corn is planted in small double rows of about 10 cm in the same corn seeding strip. The small double-row seeding mode can be modified in seeding row spacing in existing production, with the equal row spacing of 60 cm being a basic planting mode, two small double-row unit modes of (10+50)+(10+50) and (10+40+10)+(60) can be formed, and with the width of 40 cm+80 cm being a basic mode, two different unit modes of (10+30)+(10+70) and (10+20+10)+(80) can be formed. Compared with corresponding basic planting modes, small double-row planting generally makes the density increased by 500 plants / mu to 800 plants / mu. A special seeding unit is adopted for seeding in the small double rows, deep-layer fertilization is performed between the two small double rows to form V-type distribution with the seeds in the small double rows, and after seeding, double-wheel seed pressing and wide-ridge soil-covering pressing are performed. According to small double-row staggered density-increasing planting, the density can be increased, the carrying capacity of colonies can be increased, and the small double-row staggered density-increasing planting method for corn can adapt to large-area mechanized operation.

Description

Technical field: [0001] The invention belongs to crop farming and cultivation technology, in particular to a method for planting small double row dislocation and densification of corn. Background technique: [0002] Corn is a crop with a large planting area and a wide distribution. Increasing the yield of corn, especially increasing the density at a high yield level is the most effective technical approach. The most effective way to improve planting density is to change the planting method. At present, the most common planting method in China is Equal-row planting. In the United States, corn production is mainly 76cm equal-row planting, with a planting density of 5,500 to 6,500 plants. 65cm is common in Northeast China and 60cm is common in the Huanghuaihai region. The density is around 4000 to 5000 plants. At the same time, some non-equal row plantings continue to appear in production, and show a growing trend, such as large ridge double row (65cm+130cm, two than empty), t...

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Problems solved by technology

At the same time, some non-equal row plantings continue to appear in production, and show a growing trend, such as large ridge double row (65cm+130cm, two than empty), three than empty (65cm+65cm+130cm), wide and narrow row (40cm+80cm), permeable cultivation (60+120), high light efficiency cultivation (40cm+160cm) and other forms of unequal row-spacing planting, these unequal-row sowing techniques also show certain It also shows an excessive row ratio, such as serious light leakage if the row spacing exceeds 120cm, and yield reduction caused by weeds that are difficult to control

In addition, the ratio of wide and narrow rows is not suitable for mechanized production operations, especially the non-equal row spacing is difficult to achieve mechanical harvesting in opposite rows, resulting in low harvesting efficiency and high loss rate

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