摘要
考察了中山市、惠州市及梅州市所代表的平原、丘陵到山区不同类型地区农用化肥投入与农业 (种植业 )产值的变化趋势及两者之间的关系 ,并与中国整体的情况进行了比较。结果表明 ,在 2 0世纪 90年代早中期以前 ,广东省不同类型地区农业产值的增长与化肥投入的增长有依存关系 ,此后化肥投入呈现下降的趋势 ,但种植业的增长仍然较为强劲 ;从农用化肥投入的效益看 ,经历了 70年代末至 80年代初的降低和 90年代中后期的回升过程。认为广东省的农业已进入了以依靠科技进步为主、促进农业增长的良性阶段。中国整体的情况有所不同 ,农业产值的增长还未脱离与化肥投入增长的基本依存关系 ,化肥投入的效益自 70年代末降低以后 ,目前还没有出现显著的回升趋势 ,中国整体的农业现代化进程滞后于广东省。
High consumption of chemical ferilizer and its environmen t impact have been widely concerned in China.The trends of fertilizer co nsumption and planting output value of Zhongshan City,Huizhou City,and Meizhou C ity were investigated.Zhongshan City,Huizhou City,and Meizhou City arerepresenta tives of the delta plain of the Pear River,the hill area at the edge of the delt a plain,and mountainous area outside the delta plain,respectively,in Guangdong P rovince. All the three areas show the same trend that the increase of planting o u tput value is in proportion to that of fertilizer consumption before the middle of 1990s. The increase of planting output value has being accelerated since that time, while the consumption of chemical fertilizer has being declined. After a decrease during the end of 1970s and the early 1980s, the efficiency of chemical fertilizer in planting has climbed up since the middle of 1990s. It is believed that the recent increase of efficiency of chemical fertilizer in planting is a sign the agriculture of Guangdong Province has begun to step into a new period, when the technology plays a leading role in the increase of planting output valu e.
出处
《农业现代化研究》
CSCD
北大核心
2001年第5期301-304,共4页
Research of Agricultural Modernization
基金
国土资源部矿产资源定量预测用勘查评价开放研究实验室研究基金 1 999年资助项目
关键词
农业
化肥消耗
化肥效益
广东
化肥投入
agriculture
chemical fertilizer consumption
fer tilizer effciency
Guangdong Province
