A preliminary study on the"Changning Model"of growing grass and raising livestock in the hilly areas of southern Sichuan
Planting grass and raising livestock is an ecological agricultural model combining planting and breeding in the modernization of agriculture and rural areas.The output value of animal husbandry accounts for 39.4%of the total agricultural output value in Sichuan province.70%of the cultivated land in Sichuan province is concentrated in the hilly area of southeast Sichuan province,which is scat-tered.The forage grass planting industry started late.Based on the changes in the structure of herbivorous livestock and the current situation of forage planting in Changning County,southern Sichuan province from 2016 to 2020,this paper put forward suggestions for the suitable lo-cal forage rotation cropping mode from the perspective of forage variety selection.From the analysis of breeding scale and market cost,it was found that the establishment of beef cattle forage supply base could increase the income of farmers by nearly 700 yuan/head·year.From the Angle of environmental protection,it was found that returning livestock and poultry manure to the field could absorb2～4t/mu of manure,which could provide reference for improving the development quality of grass and livestock in south Hilly area of Sichuan Province.
growing grass and raising livestockcombination of planting and breedingeconomic benefitsforage grassplant-eat-ing livestock
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