Method for intercropping high-fall-dormancy-grade medicago sativa in hybrid pennisetum urpureum in south regions

Abstract

The invention discloses a method for intercropping high-fall-dormancy-grade medicago sativa in hybrid pennisetum urpureum in south regions, and relates to the technical field of pasture cultivation and utilization. The method comprises the following steps: performing deep ploughing on an intercropping land, applying a sufficient base fertilizer, performing vegetative propagation on seed stems of 'Guimu No.1' hybrid pennisetum urpureum, and performing hole sowing; performing strip cropping on a variety of medicago sativa of which the fall-dormancy grade is higher than 6; applying a nitrogenous fertilizer for three times a year at the beginning of March, the beginning of June and the end of August after the grass is cut; performing intertillage weeding once from the beginning of July to the beginning of September while the medicago sativa grows slowly. The intercropping grass can be cut for 7-9 times a year, so that the content of protein in the mixed feed grass can be relatively high, the total amount of digestible nutrients in the mixed feed grass can be increased, and the method is suitable for providing green feed which is relatively high in nutrient value to middle / small-scale livestock farms in the south regions. The method can both meet manual harvesting operation in a small-scale livestock farm, and is applicable to small-size mechanical operation of southern slope croplands.

Description

Technical field: [0001] The invention relates to a method for intercropping high fall dormancy grade alfalfa with hybrid elephant grass in southern regions, and belongs to the technical field of forage cultivation and utilization. Background technique: [0002] "Guimu No. 1" hybrid elephant grass [(Pennisetumamericanum×P.Purpureum)×P.Purpureumschum.cv.Guimu No.1] is a hybrid of Pennisetum (P.americanum×P.Purpureum) It is the female parent and P.Purpureum cv.mott is the male parent. It was bred by sexual crossbreeding. It was approved and registered by the National Feed and Forage Breeding Committee in 2000 (variety registration number 211). "Guimu No. 1" hybrid elephant grass is a kind of perennial forage grass, with tall stems, clusters, many tillers, large leaf volume, warm and humid climate, high yield, long useful life, and almost no diseases and insect pests. It is a characteristic of my country's Yangtze River Basin. And the main cultivated tall grass species in the south o...

AI Technical Summary

Problems solved by technology

If organic fertilizer is not supplemented, the soil fertility will decrease year by year, which will eventually affect the cold resistance of the plant and affect the planting efficiency

Images