Study on the Influence of Different Percentage of NH₄⁺-N and NO₃^--N on the Quality and the Yield of Tobacco Grown in Dry-land Field with the Covering of Plastic Film
Yang Yuhong 1 Yang Shuoyuan 2 Cui Guoming 1 Shi jinling 3

..............page:245-249

Studies on Stability of Xylanase
Li Weifen Sun Jianyi Xu Zirong Bao Kang

..............page:250-253

A New Species of View and Admire Fishes from Kunming-Yunnanilus tigerivinus ,sp.nov
Li Weixian 1 Duan Sen 2

..............page:254-256

Study on the Effect of Broad Beans Assimilating Phosphate at Different Sun-light CO₂ Conditions by Isotope Trace
Qiang Jiye 1 Chen Zhongyu 1 Ma Mingan 2

..............page:257-260

Working Analysis on Blade of Rotary Cultivator for 41Y Horticulture-typed Walking Tractor
Mao Yuanguan Ning Wangyun Zhai Zhaobin Zhang Haidong Pan Hezhu

..............page:261-264

Researches on the Species and the Distributions of Agricultural Mites in Yunnan
Luo Youzhen 1 Yin Xugong 2 Chen Bin 1 Li Zhengyue 1 Xu Weiliang 1 ( 2 Department of Plant Protection;Shenyang Agricultural University;Shengyang 1

..............page:265-269

The Principal Chemical Composition of the Cassava Spirits and Their Effect on the Quality
Zhao Zhengping Gong Zhaosheng

..............page:270-272

Selection of Mutants Resistance to Tobacco Phytophthora Parasitica Var.Nicotianae Using Phytotoxin Ⅱ Resistance to Black Shank Fungus Inoculation of Regeneration Plants and Their Progenies of Toxin Resistant Callus
Wang Li Yang Yanqiong Yang De Luo Wenfu

..............page:273-278

Explant and Phytohormone Effects on Organogenesis in Scarlet Eggplant ( Solanum Aethiopicum L. )
Zhang Yinghua

..............page:279-283

Studies on Screening of Biochemical Genetics Markers for Average Daily Lean Gain
Wu Gemin 1 Liu Xiaochun 2 Shi Qishun 2 Lou Yizhou 1 Wu Xiaolin 2 Xie Xinmin 2 (2 Faculty of Animal Science and Technology;Hunan Agriculture University;C

..............page:284-288

Natural Geographical District of Honeybee in China
He Shaoyu Kuang Haiou Liu Yijqiu Tan Ken

..............page:289-293

Main Nectar Plants in Himalayan Region in China
Kuang Bangyu Kuang Haiou Tan Ken Liu Yiqiu Tu Yuanhua Zao Lingzhi

..............page:294-299

Application of Stepped Dissipation to the Spillway Face in the Water Conservancy Project
Gong Zhengwen 1 Zhang Huiqiang 2

..............page:300-304

Studies on Tobacco Witches’ Broom Symptom Diseases in Yunnan ⅩⅢ Infection and Prevention in Dali Prefecture
Yang Cheng 1 Zhang Jianbin 1 Cheng Yi 1 Gao Hong 1 Shi Chaohui 1 Yang Yong 2 Qin Xiyun 3 Wu Jianyu 4 Song Liming 1 Chen Guanglian 2 Li Tianfei 3 Chen Hairu 4 ( 2 Baoshan Tobacco Company;Baosh

..............page:305-309

Studies on Tobacco Witches~’ Broom Symptom Diseases in Yunnan ⅩⅣ The Correlation between the Infection Period, the Disease and the Economic Character
Qin Xiyun 1 Duan Yuqi 1 Li Yingjin 1 Yang Ming 1 Wu Jianyu 2 Yang Yong 3 Yang Cheng 4 Chuan Xianjun 3 Song Liming 4 Chen Guanglian 3 Li Tianfei 1 Chen Hairu 2 ( 2 Yunnan Agricult

..............page:310-313

Studies on Tobacco Witches’ Broom Symptom Disease in Yunnan ⅩⅤ The Resistance Determination of Burley Tobacco to the Disease
Duan Yuqi 1 Qin Xiyun 1 Yang Ming 1 Li YingJin 1 Yang Yong 2 Yang Cheng 3 Yang Panchuan 4 Wu Jianyu 4 Song Liming 3 Chen Guanlian 2 Li Tianfei 1 Chen Hairu 4 ( 2 Baoshan Tobacco

..............page:314-317

Studies on Tobacco Witches’ Broom Symptom Diseases in Yunnan ⅩⅥ Prevention Disease by Cultivating Non virus Tobacco Seedling in the Isolated Net
Qin Xiyun 1 Li Yingjin 1 Duan Yuqi 1 Duan Yanping 2 Chuan Xiangjun 2 Zhao Zhifu 2 Yang Yong 2 Wu Jianyu 3 Song Liming 4 Chen Guanglian 2 Li Tianfei 1 Chen Hairu 3 ( 2 Bao

..............page:318-322

Paleoclimatic Study Commertary of ENSO
Chen Zongyu

..............page:323-327

Study and Exploit Spirulina
Wang Shangrong

..............page:328-332

The Making of Eight Small Tool in Studies of Plant Nematology
Pan Cangsang Lin Jing

..............page:333-335

TEM Sample Preparation for Rice Anther Ultrastructure
Yang Genhua Li Zuosen Cai Hong

..............page:336-338

Emphasis on Quality in Purchasing Foreign Journals for Libraries in Institutions of Higher Education
Shi Jiangbin Duan Jianming

..............page:339-343