Method for producing aquatic vegetable and green manure during crop rotation of water mimosa and paddy rice

Abstract

The invention discloses a method for producing aquatic vegetables and a green manure during crop rotation of water mimosa and paddy rice. With the method, paddy rice and water mimosa are planted according to a certain ratio during a double-cropping rice period. Water mimosa can grow together with paddy rice in a paddy environment. Rhizobium of the water mimosa on the part on the surface of the paddy can fix nitrogen, such that soil nitrogen content can be increased. After the harvesting of early-season rice, the edible parts of water mimosa are harvested, and all the non-edible parts are turned back to the field as green manure; after the harvesting of late-season rice, winter cropping of water mimosa is carried out; about 1 month before early-season rice planting in the next year, the edible parts of the winter-cropping water mimosa are harvested, and all the non-edible parts are turned back to the field as green manure. With the paddy rice and water mimosa crop rotation method, soil fertility can be maintained on a basis of increasing paddy rice yield. Also, the use of chemical fertilizer nitrogen can be reduced, such that non-point source pollution caused by paddy rice production can be retarded.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, and more particularly relates to a method for simultaneously producing aquatic vegetables and green manure by intercropping intercropping of acacia and rice. Background technique [0002] At present, rice has a high demand for nitrogen fertilizer, and excessive nitrogen input of chemical fertilizers has caused serious agricultural non-point source pollution. Therefore, reducing the input of chemical fertilizer nitrogen is of great significance to slow down agricultural non-point source pollution. Grass and leguminous intercropping is an effective planting mode that can reduce fertilizer nitrogen input and increase yield per unit land area and economic benefits. However, most of these studies were carried out in dry land, and Acacia ( Neptunia oleracea , the English name is water mimosa) is a perennial aquatic herbaceous plant of the genus Fabaceae twigs. The plants grow in floating...

AI Technical Summary

Problems solved by technology

In addition to its edible value, Albizia juniper has few diseases and insect pests, does not need to use a large amount of pesticides, and is easy to manage, which is conducive to the realization of organic cultivation. In the current paddy field environment, there is no report on the intercropping production mode of legumes and rice at home and abroad.

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