黑龙港流域不同栽培方式下棉花腾发量及产量试验研究

河北省黑龙港流域素有"华北干槽"之称,是华北平原历史上受旱、涝、碱害最重的地区,长期贫困缺粮。针对华北平原黑龙港流域棉花,研究了膜沟栽培、覆膜平播及不覆膜平播3种栽培方式对棉花腾发量、产量及水分利用效率的影响。通过分析在中科院南皮生态农业试验站开展的覆膜棉花耗水试验数据,得到膜沟栽培、覆膜平播及不覆膜平播3种栽培方式下的棉花腾发量、产量及水分利用效率。结果表明,膜沟栽培、覆膜平播栽培与不覆膜平播栽培棉花相比,不仅皮棉产量较高,且其水分利用效率也较高。

Experimental Study on Evapotranspiration and Yield of Cotton under Different Cropping Patterns in Heilonggang Basin

Heilonggang Basin is known as "North China Trough" in Hebei Province.Heilonggang Basin was suffered serious drought,flood,alkali in history of the North China plain,accompanied by long-term poverty and food shortage.As for cotton,the impacts of film-furrow irrigation,film covering of flat sowing and without covering of flat sowing on cotton evapotranspiration,yield and water use efficiency were studied in Heilonggang Basin.Based on mulched cotton of water consuming experimental data in Nanpi Eco-Agricultural Experimental Station of Chinese Academy of Sciences,the cotton evapotranspiration,yield and water use efficiency were calculated under different cropping patterns.The results showed that the cotton of film-furrow irrigation and film covering of flat sowing had higher lint yield and water use efficiency than the cotton of without covering of flat sowing.