The results show that the technique has significant effect on yield improvement, and the mechanism is the increase of secondary roots and the change of yield component.
试验结果表明，春小麦机械覆膜穴播增产效果达到极显著水平，其增产机理主要为小麦次生根数的增加和产量结构的变化。
The yield and tensile strength of the welded joints of the two kinds of materials increase under dynamic loading and prestrain condition that have little effect on the plasticity of structural steel.
两种材料焊接接头在动载和预应变下的屈服强度和抗拉强度均有所提高，但对其塑性影响均不大。
Cement flying dust decreased the yield of rice and rape at some farmlands, but did not produce harmful effect on its quality. There was an obvious increase in calcium content in polluted soil.
水泥粉尘使一些农田水稻和油菜产量有所下降，但对质量未产生不良影响，水泥粉尘会使土壤中钙的含量明显增加。
In experiments on rice-groundnut rotation at Bhubaneswar, as an average of two years, increase in fertilizer levels did not effect yield of rice (Table 6.).
在布巴内斯瓦尔的稻-花生轮作试验中，二年平均来看，提高施肥水平并不影响水稻产量(表6)。
Pot and field experiments were conducted to study the mechanism of rare earth (RE) on effect of increase peanut yield.
通过砂培和田间小区试验以及电子显微技术，研究了外源稀土对花生的增产机理。
As the potassium content in meadow soil in Hongxinglong Farm is fairly high, the effect of potash application on the increase of crops yield was not very significant.
红兴隆草甸土钾素含量较高，施钾对大豆和小麦有一定的增产效果，但增产幅度不大。
A more moderate treatment was spur pruning (spur extinction) which had less effect on yield and resulted in a moderate increase in fruit size but had the greatest crop value.
一个更温和的治疗刺激修剪(刺激灭绝)，其中减少了影响产量，导致了温和的增长果实大小，但最大的作物的价值。
Which all bring about a tremendous effect on agricultural economy of Qingdao, increase grain yield and agriculturalbenefit as well as peasant's income.
农业补贴政策的调整促进了粮食增产、农业增效、农民增收。
Which all bring about a tremendous effect on agricultural economy of Qingdao, increase grain yield and agriculturalbenefit as well as peasant's income.
农业补贴政策的调整促进了粮食增产、农业增效、农民增收。
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