重点阐述了手控变量施肥机的工作原理及关键部件设计。
The working principle and key components of the VFAH are set forth.
介绍了一种的实现精准农业变量施肥作业的施肥控制系统。
A kind of control system of variable rate fertilizer applicator in precision agriculture is introduced.
介绍了一种的实现精准农业变量施肥作业的施肥控制系统。
Study on intelligent decision-making sustaining system of variable rate fertilization in precision agriculture;
基于组件式GIS技术开发了精准农业变量施肥处方推荐系统。
Based on the technology of ComGIS, the recommend system for variable-rate fertilization in precision agriculture was developed.
依此可以了解田间土壤养分差异，并根据该差异进行变量施肥决策和变量施肥作业。
The difference of soil nutrient between operation units can be learned from the maps, and the decision and operation for variable rate fertilization can be made according to the difference.
圆盘式变量施肥机作为处方图的具体实施机具，在整个变量施肥过程中起着关键作用。
As a specific application machine of the prescription map, the spinning disc spreader played a key role in the whole process of variable-rate fertilization.
应用实践表明：建立的田间土壤养分信息库可以应用于精确农业变量施肥的决策和作业管理。
The results of the method showed that the soil nutrient information database on the field was suitable for variable rate fertilization decision and management in precision agriculture.
根据土壤养分分布图结合变量施肥决策模型，生成施肥处方图，为变量施肥的实施提供了依据。
Fertilizer prescription integrated soil nutrient distribution maps with variable -rate fertilization decision making model is built.
变量施肥的控制实施系统包括差分gps系统、田间计算机、液压马达、测速雷达和排肥器总成。
The control and actualize system of variable rate fertilization consist of DGPS, Field Computer, Hydraulic Motor, Ground Sensing Radar and fertilizer assembly.
本文通过与传统变量施肥方法相比较介绍了基于RS和GIS的变量施肥方法及其在系统中实现。
Compared with traditional methods of Variable Rate Fertilization, this paper gives an introduction of a new VRF method based on RS and GIS.
变量施肥技术实现了施肥机行进间按需调控施肥量，可有效地提高肥料利用率、增加利润和减轻环境污染。
It realizes to control the fertilize capacity with the machine traveling. It can availably improve the fertilizer utilize rate and profit and alleviate the environmental pollution.
精准农业土壤采样技术是变量施肥技术获取土壤养分信息的重要手段，土壤养分测定值是生成施肥处方图的重要数据之一。
Soil sampling technique was one of ways of getting the information of soil nutrition. And the tested results are very important to making a reasonable prescription map.
变量施肥技术是精确农业中的重要组成部分，变量施肥技术的实现方法主要有两种，即基于实时传感器和基于电子处方图。
There are main two methods to implement VRF technology. One is map-based application and another is real-time sensor-based and control-based application.
本文研究了利用SD卡对变量施肥机在施肥过程中的数据存储的问题，提出了软硬件设计方案，并对SD卡中的文件系统进行了介绍。
The following thesis depicts the application of SD card on variable rate fertilizer applicator based on MCU. The software and hardware design and the document system in SD card are illustrated.
该播种机由变量控制器控制机械式无级变速器，根据GPS的位置信号，完成处方图设计的播种施肥作业。
It could be accomplished sowing work prescribing by the application maps based on the GPS signal under the control of mechanical variable speed unit.
该播种机由变量控制器控制机械式无级变速器，根据GPS的位置信号，完成处方图设计的播种施肥作业。
It could be accomplished sowing work prescribing by the application maps based on the GPS signal under the control of mechanical variable speed unit.
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