Influence of Application Silicon-potassium on Draught Resistant of Winter Wheat
cui dejie; gao jing; shong hongwei (shandong laiyang agricultural college 265200)

..............page:27-29

tan tu rang jian ce gong zuo de li juan gui dang
zhang yun hui

..............page:38-39

Study on the Physiological Characteristics of Nitrogen-fixing Bacteria and Its Mutxnts
li hua; chen wan\|ren; duan ping; liu da\|zhuang; gu shou\|yu (zhengzhou university of technology)

..............page:33-37

tu rang fei liao zhi du zhe zuo zhe he guang gao chang jia

..............page:3

Effects of Nitrogen on Yield and Qualities of Bilinear of Late Rice
shi qinghua 1; cheng yongsheng 2; pan xianhua 1; li muyin 1 (1.jiangxi agricultural university; nanchang 330045; 2.guangdong academy of agricultural sciences; guangzhou 510000)

..............page:9-12

Study on Nutrition Characteristic of Mango and the Effects of Balanced Fertilization
zhou xiuchong 1; liu guojian 1; yao jianwu 1; ai shaoying 1; sam portch 2; mo wenxiong 3 (1.soil and fertilizer institute; guangdong aas; guangzhou 510640; 2.ppi/ppic; 3.huabao industry and commerce company; shenzhen 518106)

..............page:13-16

Response of Ginger to Nitrogen Form
xu kun (department of horticulture; shandong agricultural university; taian 271018)

..............page:17-19

Determination of Soil Potassium by the Method of Electrometric titration with Double Electrolysis Pools Positive-negative Feedbake Oscillegraph
hu juan; shang gui\|hua; yu tao (the department of chemistry in ping dingshan normal college; ping dingshan\ 467000)

..............page:40-43

gao sha tu di qu ji zhong zhi de tui guang de duo shu zhi li ti zhong zhi mo shi
qian su wen

..............page:30-32

Study on the Utilization of Straw Potassium and Chemical Potassium in Rice-wheat Rotation System
cao yongxiang 1; wang zhiming 2; tong xiaoli 1; li ganghua 1; zhang haijun 1 (1.nanjin institute of agricultural sciences; nanjing 210046; 2.jiangsu academy of agricultural sciences)

..............page:23-26

lv hua jia zai cha yuan zhong de zeng chan ti zhi xiao guo
ruan jian yun ; wu bing hua ; wu zuo

..............page:20-22

Nutrition Diagnosis of Magnesium in Plants and Application of Magnesium Fertilizer
wang hong; chu tianduo (soil and fertilizer institute; chinese academy of agricultural sciences; beijing 100081)

..............page:4-8