中国大豆栽培区划的修正Ⅰ.修正方案与修正理由

STUDY ON CULTIVATING REGIONS OF SOYBEANS IN CHINA

根据我国各地 2 56份大豆品种在南京分期播种及 1 8小时长光照处理试验中熟期组归属及光照反应特性的表现 ,结合供试品种原产地气候、地理、耕作制度及播种季节类型等 ,在现行大豆栽培区划的基础上将我国划分为 :北方一熟制春作大豆栽培区 ,黄淮海二熟制春夏作大豆栽培区 ,长江中下游二熟制春夏作大豆栽培区 ,中南多熟制春夏秋作大豆栽培区 ,西南高原二熟制春夏作大豆栽培区 ,华南热带多熟制四季大豆栽培区等 6个栽培区 1

Total 256 soybeans from China were tested in Nanjing under spring planting,summer planting,autumn planting and extended light condition in order to clerify the MG types, season planting types of soybeans and the climatic and geographical condition and cropping system of source area of soybeans,according to which 6 cultivating regions of soybean in China were suggested as following:Northern Single Cropping,Spring Planting Region;Huang-Huai-Hai Double Cropping,Spring and Summer Planting Region;Middle and Lower Changjiang Valley Double Cropping,Spring and Summer Cultivating Region;Central South Multiple Cropping,Spring,Summer,and Autumn Planting Region;Southwest Plateau Double Cropping,Spring and Summer Planting Region;and South China Tropical Multiple Cropping,All Season Planting Region.