Research Progress on Soil Quality of Protected Vegetable Fields
TIAN Tian 1,2,TIAN Yongqiang1,GAO Lihong 1*
1College of Horticulture,China Agricultural University,Beijing Key Laboratory of Growth and Developmental Regulation
for Protected Vegetable Crops,Beijing 100193,China;2National Academy of Forestry and Grassland Administration,Beijing
102600,China