Clover-corn-triticale ridge cropping Four-Harvest-Per year cultivation method

Abstract

The invention discloses a clover-corn-triticale ridge cropping Four-Harvest-Per year cultivation method, which comprises the following steps: 1. Plant the clover and the triticale; 2. Harvest the clover and the triticale; 3. Plant the summer corn; 4 harvest the summer corn; and then repeat step 1. By adjusting the plantation mode of the clover and the corn, the clover and the triticale is planted by intervals; at the spring of the next year, the clover and the triticale are harvested at the same time; after harvesting the clover at the first two times, plant the corn in the wide blank area so as to realize the four-harvest-per year of two times of clover, one season of triticale and one season of summer corn. In this way, high-yield and high efficiency are realized; the soil can be improved; and the soil improvement effect gets better and obvious along the years.

Description

technical field [0001] The invention mainly relates to the agricultural production in the rain-fed and dry-fed area of ​​the Heilonggang River Basin, in particular to a farming method of alfalfa-corn-triticale ridge planting "four harvests a year". Background technique [0002] my country's Heilonggang River Basin mainly refers to the low plains around the Bohai Sea in Hebei Province, Shandong Province and Tianjin City, involving more than 30 million mu of cultivated land, more than 60% of which are medium and low-yielding fields, of which 1.5 million mu is rain-fed and dry farming (without artificial irrigation) conditions area). The annual rainfall in this area is generally 400mm-600mm, and more than 80% of the rainfall is concentrated between July and September. It depends entirely on the sky and the land, and the distribution is uneven, with large inter-annual fluctuations. [0003] Alfalfa has become the dominant crop in this area because of its strong ability to resist...

AI Technical Summary

Problems solved by technology

Due to the slow growth of the last two crops of alfalfa, low yield and low efficiency, the annual economic benefits of alfalfa are low and unstable

And the plots where alfalfa is continuously planted, the population density of underground pests is relatively high

[0012] 2. The traditional alfalfa monoculture planting system has two to four crops of alfalfa, especially the third and fourth crops. As the local climate enters a period of abundant rain and heat, the rainfall increases, which brings great uncertainty to the timely harvesting and drying of alfalfa. The probability of mildew and rot is greatly increased, the yield is reduced, the pests and weeds are serious, and the quality is reduced, so that the abundant light and hot water resources at this stage cannot be effectively used.

[0013] 3. The crop rotation method of alfalfa and corn cannot solve the problems existing in the traditional monoculture of alfalfa. It also has the problem of low annual yield and low benefit of planting alfalfa, and the problem of insufficient utilization of light and heat resources in the rainy season

[0014] 4. The intercropping method of alfalfa and corn, due to the high density of alfalfa plants and closed colonies, has adverse effects on the emergence and growth of corn, so that the corn yield cannot be guaranteed. At the same time, corn dregs affect the growth of alfalfa in the second year

[0015] Intercropping uses corn and alfalfa to sow at the same time, causing the growth periods of the two crops to basically overlap, affecting the critical period for the first two crops of alfalfa to produce grass, resulting in a decline in the yield and quality of alfalfa, so the overall benefit cannot be guaranteed

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