So microflora increase tilth.

也就是說微生物群落能提高耕性.

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Some of these provide tilth to a soil.

有些有機(jī)肥是用來改善土壤的耕性的.

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The distribution position of cotton root system in the tilth is closely related with cotton yield.

棉花根系在耕層分布的位置與產(chǎn)量密切相關(guān).

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The root distribution in different tilth layer is different.

各品種在耕層不同深度分布也不同.

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