慶陽(yáng)塬區(qū)不同覆膜期對(duì)土壤水分和烤煙產(chǎn)質(zhì)量的影響
Effects of Film Mulching in Different Growth Stages on Soil Moisture and Flue-cured Tobacco Yields and Quality
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摘要: 對(duì)慶陽(yáng)塬區(qū)煙田不同覆膜時(shí)間土壤水分變化及烤煙大田生長(zhǎng)發(fā)育、產(chǎn)質(zhì)量進(jìn)行了分析研究，結(jié)果表明，慶陽(yáng)煙區(qū)提早搶墑覆膜，可有效保蓄土壤水分，提高土壤含水量，并能促使煙株早發(fā)快長(zhǎng)，縮短烤煙大田生育期，提高煙葉產(chǎn)量、質(zhì)量，增加效益。Abstract: The changes of soil moisture with different film mulching time, the development of flue-cured tobacco plants in fields and the yields and quality of tobacco leaves were studied in Qingyang, Gansu Province. The results indicated that film mulching in appropriate time could increase the content of soil moisture, promote the development of tobacco plants, and increase the yields, quality and economic returns of tobacco leaves.
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