Ways of improving crop yield per unit area and the countermeasures.
提高作物单产的途径与对策。
The perfect individual plant traits do not mean the high yield per unit area.
单株性状好并不代表单位面积产量高。
There is potential for increasing the yield per unit area on the existing cultivated land.
提高现有耕地单位面积产量有潜力。
But food yield per unit is very not tall still, still have very large increase production latent capacity.
但粮食单位面积产量还不很高，仍有很大的增产潜力。
Piles foresees accurately increases 30% the alfalfa or the corn straw, but effectively enhances the yield per unit of area.
堆料中添加30%的苜蓿草或玉米秸杆，可有效地提高单位面积产量。
Because of the diminishing opportunity to expand cultivated land, researches have been mostly focused on the rise of yield per unit area.
由于扩大耕地面积的可能性越来越小，研究已主要集中于提高单位面积产量。
The food yield per unit water is an important index, which indicate the efficiency of the irrigation water use and status of food production.
单位水量粮食生产能力是综合反映灌溉用水水平和粮食生产状况的重要指标。
An important method of increasing rice yield per unit area is to improve the rice-planting mechanization lever and use advanced planting technology.
提高水稻单产的一项重要措施是提高水稻种植机械化水平，即采用先进的种植技术。
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.
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。
The paper puts forward the quantization formula by regarding fictitious yield per unit area as one way of contrasting and evaluating the economic results of aquaculture.
本文提出以虚拟单位产量作为比较与评价水产养殖经济效果的一种方法，给出了量化公式。
But many defects exist in the pear industry such as unreasonable varieties structure, low yield per unit area, the shortage of high quality fruits, poor benefit and so on.
但是，从整个梨产业结构来说还存在不少问题，如品种结构不合理，单位面积产量低，优质果少，经济效益差等。
As a result, the yield per unit is improved by more than 20 percent, and the growth regulator improves quality, full fruit rate, seed weight, protein and fat content remarkably.
结果单产提高20%以上，并明显改善其品质，饱果率、百仁重、蛋白质与脂肪含量均明显提高。
Since 1987, late rice is planted in extensive area. The meteorological factors influencing the variation of grain yield per unit area from 1987 on differ obviously with those before 1987.
1987年大面积种植单季晚稻以来，影响粮食单位面积产量变化的气象条件与1987年之前有着明显的差异。
Faced to tillage land resource reducing and large proportion of hilly fields, increasing yield per unit area must be done to meet the need of increasing population at present and in the future.
辽宁省耕地资源少、坡耕地比重大，满足现在和将来日益增长的人口需要，必须在保护好现有耕地面积基础上，提高单产。
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.
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。
We will effectively keep the area planted with grain crops stable, focus on increasing the yield per unit area and optimizing the variety mix, and increase the country's grain production capacity.
我们要切实稳定种植面积，着力提高单产，优化品种结构，推进全国新增粮食生产能力建设。
Grain yield per unit area increased continually during the past near 50 years in HuangHuai -hai plain, and its increasing speed in recent years still kept higher than the average of all the country.
建国以来黄淮海平原粮食单产持续增长，近年来仍然高于全国同期单产增速。
We must do everything to raise the per-unit yield.
我们要千方百计提高单位面积产量。
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.
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 do everything to raise the per unit yield.
我们要千方百计提高单位面积产量。
The per unit area yield of ginned cotton has increased by 10% over last year.
皮棉的单位面积产量比去年增加了10%。
The number of panicles per unit area was the most important yield components in determining final yield.
单位面积小穗数是决定最终产量最重要的产量构成因素。
It is important that how to employ limited cultivable areas to make per unit yield attain maximum without influencing ecological system and controlling production cost.
如何利用有限的耕地面积，在不影响生态平衡和控制生产成本的前提下，使单产达到一个新的水平，就显得尤其重要。
Four components contribute to rice grain yield including the panicles per unit area, the number of spikelets, the percentage of, and the weight of ripe grains.
四个水稻籽粒产量构成因素为单位面积穗数、小穗数、成熟籽粒百分数和成熟籽粒重量。
The per unit area yield of ginned cotton has increased by 15% over the last year.
皮棉单位面积产量比去年增加了百分之十五。
Tea crop area, harvesting area, per unit area yield, gross output, and the total agricultural output value of the tea industry are analyzed and assessed by using regression model analysis.
运用回归模型对茶叶种植面积、采收面积、单位面积产量、总产量、茶叶农业总产值进行分析和预测。
According to investigate, the element zinc is very poor in soil of most area at present, which has affected crops to raise the per unit yield their disease resistance.
根据调查，目前多数地区土壤中锌元素严重贫乏，影响了作物单位面积产量的提高和抗病性。
The covered stubble could increase water utilization and the capability of storage water and, it could prompt the root growth of spring corn obviously and raise the per unit yield of 32.1%.
秸秆覆盖可以显著地增加土壤水分利用率和蓄水量，促进玉米根系生长，提高玉米单产32.1%。
Increasing yield level per unit area is forever theme for rice breeding aim, and advancing photosynthesis efficiency is one of key factors for improving grain yield.
提高单位面积的产量是水稻育种目标永恒的主题，提高光合作用效率又是提高产量的关键因素。
This thesis study one of important factor in per unit area yield travel speed measure device and his sensor choice and relevant error analysis of form especially.
本论文重点是对单产的重要因素之一的行驶速度测量装置及其传感器形式的选择和相关误差分析进行了研究。
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