在穗价和苗价发生变化后，最佳扦插密度也将改变。

The optimum cutting density should be flolowedwith the change of the prices of cutting wood and cutting nurseling.

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在相同密度条件下，利用中位蘖栽培，能提高每穗粒数5．44％以上，表现出具有较大的增产潜力。

The intermediate tillers could increase grain number per ear by over 5.44% at the same planting density. This indicates that it has a great potential for increasing yield.

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此外，随施肥和密度的增加，主穗对产量的贡献随之增大。

Moreover, with fertilizer and planting density increasing, the contribution of the main panicle to the yield was increasing.

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