per unit area yield的意思|示意

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。

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 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 main reason resulting in higher yield was that the higher number of total spikelet increased per unit area under the condition of appropriate seedling Numbers, plant spacing and row spacing.

获得高产的原因主要是在适宜的株行距配置和插植苗数下，单位面积上获得了较高的群体颖花量。

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。

The results indicated that the grain per spike, seed setting rate, spikes per unit area and thousand grain weight had great contribution to the yield, especially grain per spike and seed setting rate.

结果表明：每穗粒数、结实率、单位面积穗数与千粒重对优质稻产量形成贡献较大，尤其是每穗粒数、结实率；