Paddyfield astragalus planting method

Abstract

The present invention discloses a Chinese milkvetch cultivation method in rice field, and relates to a Chinese milkvetch cultivation and utilization technique under the condition of paddy field rice-green fertilizer rotation cropping system. It is characterized by intersowing Chinese milkvetch seeds in the rice field, and adopting a series of measures of channelling and discharging water after the rice is harvested so as to implement said invention.

Description

technical field [0001] The invention relates to a method for cultivating milk vetch in paddy fields, which belongs to the cultivation technology of milk vetch in rice fields, and is suitable for planting and utilizing milk vetch under the condition of rice green manure rotation system. Background technique [0002] Due to the action of rhizobia, milk vetch can fix 5-10 kg of nitrogen in the air per mu per year. As a green manure crop, it has been planted in the middle and lower reaches of the Yangtze River in my country. By the 1970s, the planting area of ​​milk vetch in my country reached 100 million mu . The traditional planting and utilization technology of milk vetch in paddy fields is to sow seeds in the paddy fields every autumn, and sow them in the spring of the second year when they are in full bloom and use them as green manure. It needs to be sown every year, and the labor cost for seeds is relatively high. Because milk vetch is used as green manure, There is no di...

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Problems solved by technology

[0004] Although milk vetch is planted in paddy fields, using its rhizobia to fix nitrogen can improve the soil, increase soil fertility, reduce the amount of fertilizer used in the rice season, and can also be used as green fodder for raising livestock or for bees to collect honey or to be picked as vegetables in spring in some areas, but still Due to the fact that higher economic benefits cannot be directly produced, coupled with factors such as high annual sowing costs, the expansion of planting milk vetch in winter slack fields in rice fields is restricted.

[0005] In order to solve the problem of high planting cost of milk vetch, many researchers have done a lot of work in increasing the production of milk vetch or increasing its utilization value or expanding its use, and have made gratifying progress. In 1996, Fujian Provincial Agricultural Science Institute of Soil and Fertilizer Lin Cang et al reported the technology of once sowing and multiple propagation of milk vetch in paddy fields, but their research was limited to the emergence of milk vetch seeds over summer, and the effect of natural emergence on milk vetch yield and milk vetch on rice The impact on yield has not been further studied. Therefore, the technology of one-time sowing and multiple reproduction in milk vetch rice fields has not been widely used in actual production.

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