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change of crop
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  “change of crop”译为未确定词的双语例句
     Recently, with change of crop rotation and climate, wheat Scab was extended and aggravated among the areas in China.
     近年来,随着农作物轮作制度的改变和气候的变迁,我国部分小麦产区赤霉病呈蔓延加重趋势。
短句来源
     The objectives of this study were to identify the relationship between change of crop industry structure and soil quality;
     建立种植业结构与土壤质量耦合关系协调度评价方法; 提出区域种植业结构调整、土壤资源合理利用和保护、农业可持续发展的政策建议。
短句来源
     In this research, the author widely adopted some advanced research achievements from abroad and homeland, and developed a dynamic model based photosynthesis, which could be used for prediction accumulation and partition of dry matter and morphological change of crop, and more applicability for China horticulture.
     在消化吸收国外先进研究成果的基础上,结合中国设施园艺发展现状与水平,研究建立了以光合作用为核心、以干物质积累分配和植株形态发育为主要内容的温室番茄生长发育动态模型。
短句来源
     Seven ecological fac tors(reproductive index, rainfall, relative humidity, even temperature, farming season, change of crop and seasonal variation)were selected.
     在预测方程中考虑七类与黄毛鼠生存有关的生态因子,即繁殖指数,降雨量、相对湿度、平均温度、农时变化,作物换茬和季节变化。
短句来源
     The main reason of increasing rat pest population in the field in the recent years was the change of crop lay-out, whioh provided a good condition of food, shelter and place of overwinter for the rat pest.
     而农田作物布局的变化,为害鼠提供良好的食物条件,栖居场所和越冬条件,是近年来鼠害加重的主要原因。
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  相似匹配句对
     Change
     变化
短句来源
     Crop cultivation and the change of soil salt contents
     农田耕作与土壤盐分的变化
短句来源
     The law of quantitative and qualitative change in the process of crop development
     农作物发育过程中的量变与质变规律
短句来源
     CLIMATIC CHANGE AND ITS LMPACT ON CROP OUTPUT IN QINGHAI PROVINCE
     青海省气候变化及其对粮食产量的影响分析
短句来源
     Crop acreage change detection based on phenology model
     基于物候模型的作物种植面积变化监测方法
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In this paper,the auther analyses the dynamic strict diversity of Henan agricultural production in 1978~1984.From the three aspects of the speed of development,the agricultural structure,and the distribution changes of crops,this paper approaches the different development situation in bifferen district and the reason,then the auther proposeds four problems which will be forced with in futre development of Henan agriculture.As the time-rank trends and district diversity both are considered in this method,it...

In this paper,the auther analyses the dynamic strict diversity of Henan agricultural production in 1978~1984.From the three aspects of the speed of development,the agricultural structure,and the distribution changes of crops,this paper approaches the different development situation in bifferen district and the reason,then the auther proposeds four problems which will be forced with in futre development of Henan agriculture.As the time-rank trends and district diversity both are considered in this method,it is importent to guide the healthy development of agricultural production.

本文论述了1978~1984年期间河南农业生产发展动态的地域差异。从发展速度、农业结构和作物布局变动等三方面探讨了各地形成的不同发展态势和原因,进而提出了河南农业进一步发展所面临的四个问题。由于这种研究方法把时间动态和区域差异紧密结合,因此对指导当前农业生产的健康发展有较大意义。

The predicting model of Rattus rattoides population dynamics of rice field was studied from Januray, 1987 to December, 1989 in Humen Region, Pearl River Delta. Byquantification theory I, the predicting model was established. Seven ecological fac tors(reproductive index, rainfall, relative humidity, even temperature, farming season, change of crop and seasonal variation)were selected. Based on the t-test of partial corretation coefficient, the main factors which exerted notable influence on population...

The predicting model of Rattus rattoides population dynamics of rice field was studied from Januray, 1987 to December, 1989 in Humen Region, Pearl River Delta. Byquantification theory I, the predicting model was established. Seven ecological fac tors(reproductive index, rainfall, relative humidity, even temperature, farming season, change of crop and seasonal variation)were selected. Based on the t-test of partial corretation coefficient, the main factors which exerted notable influence on population dynamics were reproductive index, Change of crop, farming season and seasonal change. The paper still analysed the data of rainfall, relative humidity and even temperature from Janurary, 1987 to Janurary, 1989 by variance analysis. The result analysed the variation of these factors was no significat differnce befween year and year, but significat differnce befween month and month.

本文研究稻田区黄毛鼠种群动态预测模型,利用数量化理论Ⅰ建立起预测模型。在预测方程中考虑七类与黄毛鼠生存有关的生态因子,即繁殖指数,降雨量、相对湿度、平均温度、农时变化,作物换茬和季节变化。本文还利用偏相关系数的T检验,分析影响黄毛鼠种群数量变化的主、次要生态因子。其中繁殖指数、作物换茬、农时变化和季节变化为主要影响因子。同时采用双因素方差分析讨论了1987—1989年降雨量的变化,认为年度间降雨量差异不明显,月份间降雨量差异明显。还分析了作物换茬,农时变化种群密度的影响。

Season dynamics of the population, distribution and reproduction rule of Rattus losea swinhoe were reported in this paper. The result showed that the season dynamic curve of Rattus losea swinhoe looked like two peaks model. The population distribution of Rattus losea swinhoe vary with the growth stage of the crop. The main reason of increasing rat pest population in the field in the recent years was the change of crop lay-out, whioh provided a good condition of food, shelter and place of overwinter for...

Season dynamics of the population, distribution and reproduction rule of Rattus losea swinhoe were reported in this paper. The result showed that the season dynamic curve of Rattus losea swinhoe looked like two peaks model. The population distribution of Rattus losea swinhoe vary with the growth stage of the crop. The main reason of increasing rat pest population in the field in the recent years was the change of crop lay-out, whioh provided a good condition of food, shelter and place of overwinter for the rat pest.

本文主要阐述黄毛鼠种群季节消长空间分布和繁殖规律以及近年来鼠害加重的原因,结果表明黄毛鼠种群季节消长曲线呈双峰型,种群的空间分布和繁殖随农田作物生育期的变化而呈有规律的变动。而农田作物布局的变化,为害鼠提供良好的食物条件,栖居场所和越冬条件,是近年来鼠害加重的主要原因。

 
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