..............page:1-9+16
..............page:23-27+33
..............page:34-38+44
..............page:56-61+67
..............page:99-104
..............page:105-110+117
Nutrients accumulation of leguminous green manures and the effects on growth and yield of winter wheat
YAO Peng-wei;ZHANG Da-bin;WANG Zheng;CAO Qun-hu;YU Chang-wei;LI Jing;CAO Wei-dong;GAO Ya-jun;College of Natural Resources and Environment;Northwest A&F University;Shaanxi Changwu District Agro-technology Extension Center;Institute of Agricultural Resources and Regional Planning;Chinese Academy of Agricultural Sciences;Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China;Ministry of Agriculture;
..............page:111-117
..............page:118-123
..............page:124-130
Effects of Cr3+ on soil enzyme activity
ZHANG Guo-qing;HE Wen-xiang;L Jia-long;WEI Ge-hong;College of Natural Resources and Environment;Key Laboratory of Plant Nutrition and the Agricultural Environment in Northwest China;Ministry of Agriculture;Northwest A&F University;College of Life Sciences;Northwest A&F University;
..............page:131-136+144
Effects of straw returning on soil enzyme activity
DING Yong-liang;LI Jin;YAN Hui-rong;HE Wen-xiang;TIAN Xiao-hong;College of Natural Resources and Environment;Key Laboratory of Plant Nutrition and the Agricultural Environment in Northwest China;Ministry of Agriculture;Northwest A&F University;College of Life Sciences;Northwest A&F University;
..............page:137-144
..............page:145-151
..............page:152-156+162
..............page:157-162
Evaluation of aphidicidal activities of plant essential oils
LIU Bing-tao;HE Jun;LIU Run-qiang;FENG Jun-tao;MA Zhi-qing;ZHANG Xing;Research&Development Center of Biorational Pesticide;Northwest A&F University;Research Center of Biopesticide Technology&Engineering;Shaanxi Province;Henan Institute of Science and Technology;
..............page:163-168
..............page:169-174+185
..............page:175-180+185
..............page:181-185
..............page:186-190
..............page:191-196
..............page:197-205
..............page:206-214
..............page:215-219
..............page:220-225+234
..............page:226-234