Analysis of the development and the demands of fertilization machinery
BAO You-lu;

..............page:1-4

The summarization of high quality organic agriculture technology system
LIANG Ming-zao;,LU Sen;,WANG Tian-xi;,GUANG Li-hu;,LU Yao;,LI Xiu-feng;,SUN Jian-guang;,LIU Li-xin;

..............page:5-12,18

Spatial variability of soil salinity in different seasons in Mosuowan irrigation area
QIAO Jiang-fei;,WANG Hai-jiang?;,LI Ya-li;,WANG Fei;,SONG Jiang-hui;

..............page:13-18

Effect of fluorescence spectrum humic acid in black soil under the soil removal on long-term fertilization experimental field
CHI Feng-qin;,KUANG En-jun;,ZHANG Jiu-ming;,SU Qing-rui;,ZHOU Bao-ku;,WEI Dan;,CAI Shan-shan;,HAN Jin-ze;

..............page:19-29

Preliminary study on abundance-deficiency index of soil available P and appropriate phosphorus application rates for alfalfa in the North of China
SUN Hong-ren?;,CAO Ying;,LIU Lin;,WU Ya-na;,YANG Xiao-jie;,ZHAO Ya-qing;

..............page:30-36

Potassium nutrient balance and its impact on soil available K content in Shanghai suburb farmlands
XU Xian-ju;,ZHAO Jian;,ZHANG Wei-li;,ZHANG Yong-chun;,YAO Zheng;

..............page:37-42

Influence of lime dosage on soil acidity of acidified yellow soil in renovated flue-cured tobacco field and application effects
ZHU Jing-wei;,LI Zhi-hong;,LIU Qing-li;,LIANG Yong-jiang;,HUANG Chun-yang;,HUO Qin-jian;,PENG You;,XIA Hao;,ZHANG Yun-gui;

..............page:43-48

Characteristics and evaluation of matrix fertilities of the waste lands after construction of Ha-Tong expressway
WANG Li-gang;,ZHAO Ling;,ZHANG Jian-bin;,WANG Xue-gang;

..............page:49-53,66

Effects of alginate-derived oligosaccharides synergistic urea on the photosynthetic characteristics and accumulation of carbon metabolites in rice
ZHANG Yun-hong;,SUN Ke-gang;,DU Jun;,HE Ai-ling;,ZHANG Qi-yi;

..............page:54-59

Study on N releasing characteristics of several coated urea by polyurethane
ZHAO Ying;,ZHAO Tian-cheng;,LIU Ru-liang;,JI Li-dong;,ZHANG Ai-ping;

..............page:60-66

Effect of phosphorus levels on root morphology and rhizospheric characteristic between the different phosphorus ef-ficiency cotton under sand culture condition
WANG Liang;,SHENG Jian-dong;,CHEN Bo-lang?;

..............page:67-72,86

Effects of different fertilizer application on nutrient uptake, biological characteristics, yield and quality of maize in Guizhou
AN Jiang-yong;,XIAO Hou-jun;,QIN Song;,GOU Jiu-lan;,ZHENG Chang-xiang;,ZHU Yun-fang;,LI Yu;,ZHAO Huan;,ZHANG Meng;

..............page:73-79

The effects of nitrogen, phosphorus and potassium application on yield and starch content of potato plants
WANG Tao;,HE Wen-shou;,JIANG Hai-gang;,WANG Yao-ke;,DANG Ke-ke;,ZHAO Xiao-xia;

..............page:80-86

Application of small molecular organics chelated calcium fertilizer
SHEN Xin;,YUAN Liang;,LI Yan-ting?;,ZHAO Bing-qiang;,LIN Zhi-an;,LI Juan;,YANG Xiang-dong;,ZHANG Jian-jun;

..............page:87-92

Effects of biochar on stalk characters and yield of maize
TANG Chun-shuang;,YANG Ke-jun?;,LI Zuo-tong?;,WANG Zhi-hui;,ZHAO Chang-jiang;,WANG Yu-feng;,ZHANG Yi-fei;,XU Jing-yu;,WANG Cong;,FU Jian;,ZHANG Fa-ming;,YANG Xi-ling;,ZHANG Wen-Chao;,ZHANG Jing;,CHEN Tian-yu;,WU Qiong;,ZHANG Peng-fei;,FAN Bo-wen;

..............page:93-97,133

Impact of organic manure supplement chemical fertilizer partially on soil nutrition, enzyme activity and crop yield in the north China plain
XING Peng-fei;,GAO Sheng-chao;,MA Ming-chao;,ZHOU Xiao-lin;,ZHAO Tong-kai;,SUN Jun-de;,SHEN De-long;

..............page:98-104

Effects of vermicompost on potassium nutrition and agronomic traits and economic traits of flue-cured tobacco in southern Shaanxi province
LI Xiao-na;,CHEN Fu-cai;,ZHENG Pu-fan;,CUI Zhi-yan;,ZHANG Ling;,GOU Wei;,GAO Mei;,JIN Bao-feng;,YE Wei-min;,HU Qiang;,HU Shi-bin;,ZHANG Li-xin;

..............page:105-109

Effects of nitrogen forms on the phosphate-solubilizing activity of phosphate solubilizing bacteria, growth and quality of pakchoi
YAN Hui;,BAI Bing;,LIU Ming-yi;,LI Qin-yun;,CAO Cui-ling?;

..............page:110-116

Effects of different soil melioration practices on soil properties and rice yields in low-yielding yellow clayey land
HU Cheng;,LIU Dong-hai;,CHEN Yun-feng;,QIAO Yan;,WU De-chun;,SUN Bin;,LI Shuang-lai;

..............page:117-121

Effects of tillage method and soil conditioner interaction on peanut yield and quality
SI Xian-zong;,MAO Jia-wei;,ZHANG Xiang;,LI Liang;,LI Guo-ping;,YU Hui;

..............page:122-126

Effects of sorghum continuous cropping on the growth of sorghum and soil environment
FAN Fang-fang;,WANG Jin-song;,DONG Er-wei;,JIAO Xiao-yan;,DING Yu-chuan;,WU Ai-lian;,GUO Jun;,WANG Li-ge;

..............page:127-133

Characteristics of soil water and salt movement under applying desulfurization gypsum in takyric solonetz
FAN Li-qin;,YANG Jian-guo;,SHANG Hong-ying;,ZHANG Yong-hong;

..............page:134-139

Determination of soil organic matter content by heating method with an aluminum module digesting device
XU Hu;,SHEN Hua-ping;,ZHOU Shi-wei;,WANG Xiao-li;,SUN Nan;

..............page:140-144

Determination of chloride ion in soil by precipitation conductance method
MA Wei-wen;,ZHU Neng-wu;,YIN Yu-rong;,ZHANG Jian-gong;

..............page:145-148