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cotton    
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  棉花
    A DISCUSSION ON THE FUTURE DEVELOPMENT OF COTTON CULTIVATION IN WESTERN KANGSHU FROM VIEWPOINT OF CLIMATE
    从河西走廊的气候条件探讨发展棉花的前途
短句来源
    A STUDY OF REGIONALIZATION OF COTTON CULTIVATION IN CHINA
    中国棉花区划研究
短句来源
    The application of syntax model Distinguishment in the temperature condition evaluation of cotton growing season
    句法模式识别在棉花生育期温度条件评价中的应用
短句来源
    THE METEOROLOGICAL INDEX INFLUENCING BUMPER OR POOR HARVEST OF COTTON IN CHINA
    影响中国棉花产量丰歉的气象指标
短句来源
    THE POTENTIAL INFLUENCE OF TEMPERATURE ON COTTON YIELD STRUCTURE AND DEVELOPMENT RATE
    温度对棉花产量结构及发育速度的可能影响
短句来源
更多       
  棉花
    A DISCUSSION ON THE FUTURE DEVELOPMENT OF COTTON CULTIVATION IN WESTERN KANGSHU FROM VIEWPOINT OF CLIMATE
    从河西走廊的气候条件探讨发展棉花的前途
短句来源
    A STUDY OF REGIONALIZATION OF COTTON CULTIVATION IN CHINA
    中国棉花区划研究
短句来源
    The application of syntax model Distinguishment in the temperature condition evaluation of cotton growing season
    句法模式识别在棉花生育期温度条件评价中的应用
短句来源
    THE METEOROLOGICAL INDEX INFLUENCING BUMPER OR POOR HARVEST OF COTTON IN CHINA
    影响中国棉花产量丰歉的气象指标
短句来源
    THE POTENTIAL INFLUENCE OF TEMPERATURE ON COTTON YIELD STRUCTURE AND DEVELOPMENT RATE
    温度对棉花产量结构及发育速度的可能影响
短句来源
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    Taking climatic data and grid interpolated one in every place of Ningxia from 1961 to 1990 as inputs to the models, growing process of the cotton, yield and yield percentage prior to frost arrival were modelled and their probability distributions were computed and drawn. Finally, the preference degree of planting film covered cotton was analyzed and regionalized in the Ningxia.
    以模式和指标为依据,用宁夏各地1961~1990年气候资料和小网格订正资料模拟各地逐年生长进程、产量和霜前花率,统计其概率分布,分别绘出分布图,分析了宁夏各地发展地膜的适宜程度并做出了区划。
短句来源
    This meteorological forecast system for cotton and the production management subsystem are consist of database, methodological database, index data base, countermeasure database, inferential module, and product forecast module. The information consultation subsystem consists of the information history of cotton production, current cotton information and the prediction of cotton production in the future, information on cotton production management and other related information.
    本系统由数据库、方法库、指标库、对策库、推理模块、预报产品制作生成模块构成花气象预报及生产管理分系统 ,由花生产历史信息、当前情信息、未来预测信息、花生产管理对策信息和其它有关信息构成咨询信息分系统 ,为系统应用人员提供良好的综合决策环境。
短句来源
    Analysis the probability of cotton seedling for infectde with the frost and microthermal damage during different seeding time may determine the optimum cotton's seeding time in every region in Xinjiang.
    统计分析不同播期植苗遭受霜冻及低温冷害影响的概率可确定各地区的最佳播期
短句来源
  棉花
    A DISCUSSION ON THE FUTURE DEVELOPMENT OF COTTON CULTIVATION IN WESTERN KANGSHU FROM VIEWPOINT OF CLIMATE
    从河西走廊的气候条件探讨发展棉花的前途
短句来源
    A STUDY OF REGIONALIZATION OF COTTON CULTIVATION IN CHINA
    中国棉花区划研究
短句来源
    The application of syntax model Distinguishment in the temperature condition evaluation of cotton growing season
    句法模式识别在棉花生育期温度条件评价中的应用
短句来源
    THE METEOROLOGICAL INDEX INFLUENCING BUMPER OR POOR HARVEST OF COTTON IN CHINA
    影响中国棉花产量丰歉的气象指标
短句来源
    THE POTENTIAL INFLUENCE OF TEMPERATURE ON COTTON YIELD STRUCTURE AND DEVELOPMENT RATE
    温度对棉花产量结构及发育速度的可能影响
短句来源
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  cotton
Enzymatic hydrolysis of neutral fat of cotton oil soap stock with a nonspecific lipase produced byOospora lactis F-500 was designed.
      
Utilization of cotton oil soap stock as the only source of carbon during cultivation of the fungus was studied.
      
The rate of hydrolysis of soap stock fat strongly depended on the way of biological conversion of cotton oil soap stock.
      
The resulting mixed cultures utilized cellulose, cellobiose, glucose, maize residue, cotton, and flax boon producing ethanol (up to 0.9 g/l) and acetic acid (up to 0.8 g/l).
      
Use of the Fungus Panus tigrinus in the Manufacture of Pressed Materials from Cotton Plant Waste
      
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In this paper the climatic characteristics of western kangshu are firstly describedand then the possibility of the development of cotton cultivation from the view-pointof climate conditions is discussed.It is pointed out that in this region during thegrowing season the sunlight is rich,the rainfall is scarce and the weather is steady.These conditions surpass those of the cotton area in.the region of Yangtze River andHaung-he.But there are also defects for cotton development is this region.They...

In this paper the climatic characteristics of western kangshu are firstly describedand then the possibility of the development of cotton cultivation from the view-pointof climate conditions is discussed.It is pointed out that in this region during thegrowing season the sunlight is rich,the rainfall is scarce and the weather is steady.These conditions surpass those of the cotton area in.the region of Yangtze River andHaung-he.But there are also defects for cotton development is this region.They are:(1)the growing season is short,(2)the weather is more changeable in spring,(3)the temperature rises rapidly in spring and decreases rapidly in autumn and(4)incertain places the temperature is too low for cotton.To overcome these defects certainsuggestions are made.After a careful comparison of the climate of different places on a subdivision ofregions for cotton development is suggested.

本文首先概述了河西走廊的气候特征,然后从气候条件出发讨论了走廊地区发展棉花的可能性,指出走廊地区日光资源丰富,夏季棉花生長季节內雨量稀少,天气比较稳定,这些均为黄河、长江流域棉区所不及.缺陷是生长期较短,春秋季节天气多变,春季温度上升迅速,秋季温度下降也较快,且某些地区温度过低,不易滿足棉花的生理要求.补救的办法是可以根据不同的情况,分別采取从播种期、播种技术上提早植株成熟以及其他复盖措施等来防止霜冻;促进幼苗的生长发育或采用早熟品种以充分利用盛夏的高温来适应较短的生长期;应用沙盖棉这一特殊植棉技术来补偿气温条件的不足等等。本文对走廊各地作了比较仔細的比较分析,分別指出了它们的有利与不利条件以及补救措施等等,因此估计能对农业生产与农业区划有所贡献。

A scientific division of China's cotton cultivated area is favourable to the country's cotton production in accordance with the principle of adopting suitable measures to local conditions, practicing reasonable allocation and guiding production according to various types.According to ecological and srio-economic conditions, basic characteristics of cotton production and current state of allocation, China's cotton cultivated area can be divided into five major cotton regions and...

A scientific division of China's cotton cultivated area is favourable to the country's cotton production in accordance with the principle of adopting suitable measures to local conditions, practicing reasonable allocation and guiding production according to various types.According to ecological and srio-economic conditions, basic characteristics of cotton production and current state of allocation, China's cotton cultivated area can be divided into five major cotton regions and twelve cotton subre-gions. They are: 1 ) the Huanghe Valley cotton region (including four subre-gions: North China plain, Huang-Huai plain, Fen-Wei-Luo Plain, and Beijing-Tianjin-Tangshan area); 2) the Yangtze Valley cotton region (including five subregions. the Lower Yangtze Valley, the Middle Yangtez Valley, the Upper Yangtze Valley, the Nanyang-Xiangyang basin, and the Southern Red Earth Hilly area); 3 ) the Northwestern In terior cotton region (including three subregions. south Xinjiang, East Xinjiang,and North Xinjiang-Hexi Corridor); 4 ) the early-maturing cotton region; and 5 ) South China cotton region.The North China Plain is a famous cotton area of our country, Possessing the optimum ecological conditions very suitable for the cotton cultivation with great potential in increasing production .South Xinjiang and the Huang Huai Plain are also cotton-production areas known for their optimum ecological conditions, but the current status of cotton development is handicapped by the Relatively low level of economic and technical conditions, yet they have great potentialities.The Lower and Middle Yangtze Valley Plain is a large high-yield cotton-cultivated area distrbuted intensively with cotton fields.It is suitable to cotton cullivation but with limited potential in development .The Fen-Wei-Luo Plain, North Xinjiang,and Nanyang-Xiangyang Basin are also main cotton production areas but they have less potential .The Upper Yangtze Valley, the Southern Red Earth Hilly Area, South China, and Northern Early-Maturing Cotton Regions are ecologically less suitable to cotton production; Cotton field there are small in acreage and distributed separately .From strategic point of view of allocation, the future development of China's cotton-producing areas should take into account the following measures, i.e.to consolidate and improve cotton concentrated areas of Lower and Middle Yangtze Valley Regions,to actively construct the cotton producing area of North China Plain, to develop gradually new cotton area of the Huang-Huai Plain, to create conditions to explore high-quality cotton area in South Xinjiang,to adjust and diminish cotton acreage of the regions where ecologically unfavorable to cotton cultivation and to concentrate properly the dispersedistributed cotton acreage, so as to establish a rational alloction system of cotton development.

本文根据自然生态条件、社会经济条件、棉花生产基本特征和布局现状,将我国棉区划分为五个一级棉区(大棉区)和十二个二级棉区(亚区),并对各棉区的条件、基础、存在问题和发展方向进行了分析评价。同时,还按照自然生态因素的地域组合,将各棉区的宜棉程度分为最适宜、适宜、和次适宜三个等级类型。

According to the observed data of water consumption (E) of the main crops in the prefectures of Shijiazhuang, Xinxiang and Dezhou and in Beijing, evapotranspiration coeffcient of crops (a) in Penman's formula is determined by calculating evaporativity from the water surface (E0) : a = 0.78 for winter wheat, a = 0.72 for cotton and a = 0.78 for corn. A formula, E = aE0, is adopted to estimate water consumption of the crops in their growing pa-riod in the low plain of Hebei province. The estimated water...

According to the observed data of water consumption (E) of the main crops in the prefectures of Shijiazhuang, Xinxiang and Dezhou and in Beijing, evapotranspiration coeffcient of crops (a) in Penman's formula is determined by calculating evaporativity from the water surface (E0) : a = 0.78 for winter wheat, a = 0.72 for cotton and a = 0.78 for corn. A formula, E = aE0, is adopted to estimate water consumption of the crops in their growing pa-riod in the low plain of Hebei province. The estimated water consumption is as follows ; 400-470 nim for wheat ;613-708 mm for cotton and 350-405 mm for corn.In successive rotation of wheat and corn, an annual amount of water deficit in wheat field is about 242 mm, while in monoculturellt, It is reduced approximately to 164 mm. water deficit for one-crop farming of cotton and corn amounts to 107 mm and 39 mm respectively.water deficit for winter wheat in Cangzhou and the eastern part of Lang-fang exceeds 180 mm, while it is decreased to less than 140 mm in Handan and southern Xingtai. The areas seriously suffered from water shortage are located in southern Changzhou and the western part of Xintai and Hengshui. As for the areas of Wenan Dacheng and Qingxian Counties, water deficit becomes less serious.From April to May is a period of the highest water consumption of wheat and the sowing time of cotton and other spring sowing crops. But in this period precipitation is the lowest. Therefore, a complementary amount of water is required in irrigation.

本文计算了河北省低平原地区主要农作物的需水量,根据农田水量平衡方程估算了冬小麦、夏玉米和棉花整个生长期的水分盈亏及其在地区上的差异,分析了作物需水关键期的水分状况。

 
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