www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

USEUROPEAFRICAASIA 中文雙語Fran?ais
Home / Comment

Precision farming yields many gains

By Robert Paarlberg | China Daily | Updated: 2012-03-08 08:18

Precision farming yields many gains

The Chinese government's No 1 central document released in February attached great importance to high-tech agriculture, and it is a hot topic during this year's annual sessions of the National People's Congress and the Chinese People's Political Consultative Conference.

Everyone thinks high-tech farming means biotechnology, but it actually goes far beyond that. Biotech seeds are now being upstaged in the United States by a variety of "precision farming" technologies, such as drip irrigation and GPS guidance systems, that offer savings in the use of water and chemical inputs.

On big farms in the US four out of five tractors are now equipped with GPS systems that "auto-steer" the equipment in perfectly straight lines. With differential correction signals, these systems can tell a machine exactly where it is in a field, down to 1 square meter. This in turn allows on-board computers to access GIS mapping data and instruct the machine to apply fertilizer or lime at differential rates, location by location. This eliminates both under-application that can hold down yields and over-application that wastes money and pollutes the environment.

Precision farming yields many gains

Today's Top News

Editor's picks

Most Viewed

Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
主站蜘蛛池模板: 亚洲一区免费视频 | 丝袜美腿精品一区二区三 | 久久久久久网站 | 性福利视频 | 久久亚洲人成国产精品 | 久久精品视频在线播放 | 日本一级毛片高清免费观看视频 | 777444欧美影视 | 免费乱码中文字幕网站 | 亚洲精品黄色 | 成人欧美一区二区三区黑人免费 | 欧美高清正版在线 | 欧美午夜视频一区二区 | 久久久精品视频免费观看 | 美女视频黄色网址 | 萌白酱粉嫩jk福利在线观看 | 国产成人毛片视频不卡在线 | 久久久久久一品道精品免费看 | 午夜主播福利视频在线观看 | 亚洲日本视频 | 波多野结衣一区二区 | 亚洲成人在线播放视频 | 国产看色免费 | 久久精品久久精品久久 | 国产在线精品香蕉综合网一区 | 中文字幕一区二区三 | 精品国产一级毛片 | 久久精品国产99久久久 | 成人免费观看高清在线毛片 | 欧美黄成人免费网站大全 | 国产精品久久成人影院 | 日本精品一区二区三区在线视频一 | 国产精品久久不卡日韩美女 | 久草新免费 | 亚洲成人第一 | 成年人黄视频在线观看 | 亚洲国产欧美在线人成精品一区二区 | 波多野结衣在线观看一区二区 | 精品国产午夜久久久久九九 | 性盈盈影院影院67194 | 很黄的网站在线观看 |