作物布局
- 网络crop composition and distribution;allocation of crops
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基于WebGIS的作物布局群决策支持系统的实现途径研究
A Group Decision Support System for Crop Composition and Distribution on the Basis of Web GIS
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本研究以作物布局为研究对象,以优化利用农业资源,获取最大经济效益为主要目的,着重运用数学建糢技术和计算机技术来研究群决策支持系统的建立。
The research works on crop composition and distribution . Its chief goal is to optimize the agricultural resource and gain the maximum economic effectiveness . It emphasizes on applying mathematics modeling technology and computer technology to research the establishment of group decision support system .
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基于Internet作物布局专家支持系统的设计
The Design of Expert Supporting System for Crop Patterns Based on Internet
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在信息数据库基础上,利用GIS和计算机技术探讨了重庆地区农业气候资源的空间分布模拟、量化分析与评价、作物布局及气候资源的充分利用等问题。
On the basis of information database , the part had a discussion on the dimensional distribution , quantitative evaluation , the use full of agroclimatic resources and crop distribution in ChongQing region by making use of GIS and computer .
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品种中心灰靶布局理论在作物布局上的应用
Application of variety central grey target patterns theory on crop patterns
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2积极调整农业结构和作物布局;
To adjust the agricultural structure and the crop distribution .
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调整作物布局,提高结构效益。
Regulate crop distribution to increasing structure benefit .
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作物布局中的一些定量分析问题
Problems of quantitative analysis in crop distribution
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作物布局模糊规划的研究&以河南省封丘县为例
Study of Fuzzy Planning of Crop Distribution
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作物布局优化模型及其在农业区划中应用
An optimization model for the crops distribution and its application to the provincial agricultural regionalization
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系统决策与作物布局&徐州地区秋作物布局实例分析
System decision and crop layout & an analysis of the autumn crop layout in the Xuzhou District
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天水农业气候年景分析与主要粮食作物布局研究
An Analysis of Tianshui 's Agricultural Climate and a Study on the Layout of the Main Crops
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作物布局、耕作制度、栽培技术与棉铃虫调控
Effect of Crop Distribution , Cropping Systems and Planting Technique on Adjustment and Control of Cotton Bollworm
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华北平原节水农业作物布局空间决策系统研究
A study on the spatial decision making system of crop allocation for water saving agriculture in North China
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同时也为日光温室长度的确定和室内作物布局提供理论依据。
It can be referenced for the decision of the length of sunlight greenhouse and the layout of the crop .
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土壤湿度是干旱预报、农业生产、作物布局和农业决策的重要指标之一。
Soil moisture is one of the most important indexes for drought prediction , agricultural production , crop layout and agricultural decision making .
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针对农场的实际情况,以作物布局方式及作业工艺作为研究对象,对具体的生产单位进行了水稻田间生产机器系统的配备分析研究。
The paper takes crops distribution methods and operation technics as the study object and does analysis researches on rices field production machinery system on certain work units .
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发展旱作农业主要措施是培肥地力、蓄水保墒、调整作物布局。
Fertilizing the soil , storing water to keep the moisture of the soil and adjusting the distribution of crops are the main measures of developing dry farming .
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导致这一演替的主要原因为作物布局、耕作制度、栽培方法、管理技术的变化和农药化肥的过量施用。
The main reason for this succession might be the changes in crops distribution , cultivation type , planting method , management technique and over-use of chemical pesticides and fertilizers .
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并根据不同区域气候特点和产量水平,提出了作物布局调整方案,对本地优势作物基地建设提供了科学依据。
According to different region 's climatic feature and yield level , a suggestion about crops ' distribution adjustment is put forward , providing a scientific basis for the construction of local optimal crops base .
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近年来,随着作物布局、耕作制度、气候变化等系列因素的影响,蚜虫已有跃升为我国玉米生长的主要害虫之势,已显著制约和影响了部分产区玉米的产量和品质。
With the change of crops distribution , farming systems and climate conditions , corn aphid is becoming one of the most important pest , which has affected the maize yield and quality in some area .
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根据气候未来的变化趋势,及时调整作物布局,改革现有的传统的耕作制度,科学利用土地,改革耕作制度,减少农业排放。
According to change tendency of the future climate , adjust the crop allocation in time , reform the traditional cropping system , make rational use of the land , reform cropping system , reduce the agricultural emissions .
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结果表明:该方法由于统筹考虑了多个性状,故可得出一个综合性的较高的结论,克服了方差分析、回归分析等分析方法在作物布局分析上的缺点。表5,参4。
The results showed that a comprehensive conclusion can be drawn because many characters were synthesized , and shortcomings of some analyzing methods , including analysis of variance and analysis of regression , on analysis of crop patterns can be overcome .
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根据地理状况、气候条件、作物布局、农业昆虫种类与分布为害特点等因素,将陕西农业昆虫地理区划为2界6区。
According to geographical features , climate , crops , insect kinds and characteristics of their distribution and occurrence , their geographical division in Shaanxi can fall into two realms_Palearctic Realm and Oriental Realm , with Qinling Mountains as the dividing line .
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分析了80年代以来作物布局、耕作制度、栽培技术的变化,指出这些变化与棉铃虫为害有着密切的关系,从这一角度提出了调控棉铃虫的措施。
Changes of crop distribution , cropping systems and planting technique since 1980s are analysed , It is found that those changes has good relationship with cotton bollworm . And the measure of adjustment and control of cotton bollworm is put forward .
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近年来随着耕作制度的变化,以及作物布局的多样化,致使大螟发生危害逐年加重,在有些地区甚至成为水稻螟虫的优势种。
In recent years , with the changes in cultivation and diversification of crops , the damage caused by this pest becomes serious year by year . In some areas , pink stem borer even becomes the dominant species of rice borers .
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作物布局是农业生产的一个重要环节,直接关系到农业生态系统资源输入(物质条件、科学技术、气候资源和生物资源等)的利用和转化效率的高低。
Crop layout is an important link in agricultural production , and it has direct influence on the efficiency of the utilization and transformation of agroecosystem resources , which include the material conditions , science and technology , climatic and biological resources , etc.
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作物布局是指农作物的地域分布,合理的作物布局可以充分发挥各地区自然资源和经济条件的优势,提高农作物的产量和质量,取得较好的经济效益、生态效益和社会效益。
Crop pattern means the Regional distribution of crops , A reasonable crop pattern can give full play to natural resources and economic condition . Increase output and quality of crops , and make a good benefit of economic , ecological and social .
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随着国际市场和烟草工业对烟叶品质要求的提高,以及气候变化、作物布局和栽培制度等的改变,我国烟草病虫害的发生呈上升趋势。
Tobacco diseases and insect pests occurrence assumes the trend of escalation in China , along with increasing demanding of enhancement of tobacco quality from international market and the tobacco industry , and the change of the crops layout and the change of the cultivation system .
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基于遗传算法和GIS的作物空间布局优化
Crop Spatial Distribution Optimization Based On GIS and Gene Algorithm