粮食总产 meaning in Chinese
total grain output
total grain yield
Examples
- Since 1995 , overall grain production has been kept at a high level . situation in food security has been optimistic , with some overproduction occurred . however , problems still exist
95年以来，粮食总产持续在较高水准，粮食安全比较乐观，甚至出现了粮食过剩，但是要看到存在的问题。 - This article summarized the role and contribution of chemical fertilizers in ensuring food security and analyzed / predicted the increased amount of chemical fertilizers needed to meet grain production goals in 2010 , 2015 and 2020 , respectively
摘要本文根据相关文献资料，综述了化肥在保障我国粮食安全中的作用与贡献，分析和预测了实现2010 、 2015 、 2020年粮食总产目标所需新增化肥的数量。 - Wheat - maize rotation is one of the major double cropping systems , taking an important place in grain production in shandong province , about 2 . 36 million ha accounting for 54 . 5 % of the total cultivated acreage , producing 21 . 7 million tonnes grain , 57 . 9 % of the total in 1990
小麦-玉米轮作是主要一年两作制之一，在山东省粮食生产中起重要作用，大约236万公顷，占总耕地面积的54 . 5 % ，生产2170万吨粮食，为1990年粮食总产的57 . 9 % 。 - Based on the analysis of crop structure and crop yield according to the statistic data in 1949 ~ 2000 year . the total water consumption of main crops and the amount of rainwater utilized have been calculated . the rapid increase in water demand for crops production after the late eighties is the one of main reasons of the water resources crisis in baoding area . the efficient precipitation , the water demand and the deficiencies of main crops in different typical years and in different growth period in baoding plain have been studied in detail . the factors of water use efficiency of different crops have been put forward through the analysis of test data in typical year
本文利用保定市1949 2000年主要农作物的种植面积与产量统计资料，在分析了历年种植结构变化、单产变化的基础上，明确了历年粮食总产变化情况，计算了历年粮食生产的总需水量及其变化；根据农作物的雨水资源的变化规律，分析了历年用于粮食生产的有效降水量；得出了保定市农业用水量从90年代中后期大幅度增加而有效降雨量的明显减小，是造成保定市水资源供需矛盾突出的主要原因之一。