修订计划没有改变播种面积基数。
蔬菜的播种面积增加迅速。
注：2002年后粮食播种面积为抽样调查数。
播种面积分配制、价格支持和作物丢弃令美国农业面貌一新。
Acreage allotments, price supports and crop set-asides reshaped the face of American agriculture.
该报告将列明各州的作物播种面积，并对收获面积进行评估。
The report lists crop plantings by state and estimates harvested area.
要保护好基本农田，稳定粮食播种面积，优化粮食品种结构，着力提高粮食单产。
We must protect primary farmland, keep the area sown to grain stable, improve the structure of grain varieties grown and increase the per unit area yield of grain.
一些研发低亚麻酸大豆的主要油籽公司明年也准备大幅扩大播种面积。
Major crop seed companies that have developed low-linolenic soybean varieties also expect to sharply increase plantings next year.
农作物播种面积动态变化因其重要性已经引起了国内外学者的广泛关注。
Potential dynamics of agricultural crop sown area has attracted a wide range of attention from numerous researchers due to its ecological and socioeconomic implications.
对西北部生态农业建设区确定粮食作物播种面积每年压缩0.2％的合理比例；
The northwest ecological agriculture region is defined in the proportion of 0.2% every year;
随着玉米播种面积的逐年扩大，玉米田杂草种类逐年增多，化学除草已占主导地位。
With the area expanding of the corn planting varieties of weeding in the cornfield increase year by year, chemical weed killers have played leading roles.
油菜生产技术的应用情况：杂交油菜品种的普及率占全省油菜播种面积的80％左右；
The application of rapeseeds production techniques: The popularization rate of hybrid rapeseeds is 80% in terms of planting areas in Guizhou;
但是，在玉米地带播种季节到来之前可能出现的反弹也许会阻止播种面积向玉米流失。
However, some recovery may occur ahead of planting season in the corn Belt to prevent a further loss in acreage to corn.
1959年开始，由于播种面积减少、单产下降、自然灾害等原因，粮食产量连年下滑。
In 1959, various factors such as reduction of sown areas, less yield per unit area and natural disasters contributed to the decrease in grain output.
大约500万公顷的越冬农作物被估计受到严重危害，而春季农作物的播种面积被大幅减少。
Some five million hectares of winter crops are estimated to have been lost or damaged, and the areas planted in spring crops have been reduced substantially.
耕地内部种植结构表现为小麦播种面积稳定，玉米和棉花面积变化起伏大，蔬菜面积不断上升。
While the wheat sown area is stable, the sown area of maize and cotton fluctuated greatly and the area of vegetable has increased constantly.
东北部生态农业建设区由于耕地面积较少和人口较多的原因，粮食作物播种面积已无压缩余地。
The northeast ecological agriculture region has no space to adjust the crops sown area for the more population and few land.
水稻是我国第一大粮食作物，占我国粮食40 %左右，其总产量与播种面积列世界第一、二位。
Rice is the first cereal crop and contributes around 40% of the national grain production in China. The total yield and sowing area rank the first and second position in the world, respectively.
据统计，我国水稻播种面积约占全球粮食播种面积的28.9％，总产量居所有粮食作物的首位。
According to Stat. : The planting area of rice in our country occupy 28.9% of it in the world . The overall output occupy primacy in all foodstuff.
在播种面积相对稳定的前提下，只要粮食单产年平均递增1%，就可以达到预期的粮食总产量目标。
C. With a relatively stable cultivation area, China can achieve its desired total grain output target if the annual average increase rate of per unit yield is 1%.
从播种面积指数、单产指数、效益指数以及综合比较优势指数的角度分析了吉林省玉米生产的比较优势。
The comparative advantage of maize production in Jilin province was analyzed based on the sow area index, unit yield index, benefit index and comprehensive comparative advantage index in this study.
水稻是我国的主要粮食作物之一，其播种面积占全部粮食作物面积的30%，产量则占粮食总产量的40%。
Rice is one of main food crops in China, its planting area accounts for 30% in all food crops and its yield accounts for 40% in total food yield.
近50年的粮食作物产量、粮食作物播种面积和单位面积产量与气温均呈明显的正相关，而与降水的相关性很差。
In this 50 years, grain crops output, the grain crops sown area and the yield per unit of area and the temperature are obviously related, but they are slightly correlative with the precipitation.
模型建立思路是：作物播种面积变化是农户作物选择行为的直接结果，而选择何种作物进行播种是由作物效用决定的。
The general hypothesis of this study is that crop sown area change is directly linked with farmer decisions on crop choice, and what k.
与此同时，大豆播种面积也明显落后于原定计划，预计美国农民仅完成了14%的大豆播种，相当于通常进度的一半。
Meanwhile soybean plantings are also considerably behind schedule with U. S. farmers thought to have planted just 14 percent of their soybeans, which equates to half the usual rate.
更长远的趋势也许更为重要，因为上调后的浮动出口税率将会阻碍播种面积进一步扩大，并可能导致阿根廷产量下降。
The longer-term implications probably are more important as the high, sliding-scale export tax will discourage further area expansion and perhaps result in a contraction of Argentine production.
针对这些问题，笔者提出以下调整措施：(1)降低粮食作物尤其是青稞和小麦的播种面积，增加蔬菜、水果的种植面积。
Based on these results, we put forward following adjustment measures: (1) reduce the grain crop especially the highland barley and wheat, enhance the vegetable and fruit.
市场上也有传言说美国农户已经开始了2011年的播种，玉米、棉花和小麦种植面积增加，可能会减少大豆的播种面积。
There is also talk that after US farmers have planted the 2011 crops, higher corn, cotton and wheat acres may actually reduce the number of acres planted to soybeans.
而各地区播种面积的变化对其总产量影响不太明显，但华东和中南地区农业播种面积的持续下降对粮食总产量有较大的抑制作用。
The sown area change has not obvious effects on the production in the various regions, but the continuous decreased sown area has restrained the production in the East and Central South of China.
而各地区播种面积的变化对其总产量影响不太明显，但华东和中南地区农业播种面积的持续下降对粮食总产量有较大的抑制作用。
The sown area change has not obvious effects on the production in the various regions, but the continuous decreased sown area has restrained the production in the East and Central South of China.
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