The effect of removing base spikelet on setting kernels and grain weight was slighter, kernels and grain weight per ear decreased less.
去除基部小穗对结实粒数和粒重的影响较小，穗粒数和粒重下降较少；
The results suggested that the way to increase yield in the area with higher production level was to improve grain number of ear and grain weight.
本研究结果表明，在较高的产量水平下，增加每穗粒数和千粒重是增产的方向。
Potassium fertillizer increased grain number per ear, improved grain weight, improved stem pole substantial degree, strengthened the ability of resisting lodging.
钾素能增加穗粒数，提高粒重，提高茎秆充实度，增强抗倒伏能力。
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