【摘要】 以"西玉3号"玉米为试验材料,作了覆膜与露地两种方式的对比种植,研究了其生态小气候效应、植株生长特点及其对玉米产量的影响。结果表明:采用地膜覆盖在生育前期能提高土壤温度,保持土壤湿度,生育后期特别是旺盛生长期能降低土壤温度,有效改善土壤的物理性状,从而显著改善玉米生育期内的生态小气候效应,最终能够提高玉米子粒产量。更多还原

【Abstract】 The experiment was conducted in two different planting patterns (film-covering and non film-covering) with West-3 maize.Its ecosystem microclimatic effect, the characteristics of plant growth, and its influence on corn yield were studied.The results showed:film-covering could increase soil temperature,keep the soil humidity in earlier growing stage, and could drop soil temperature during the full growing stage.In addition, film-covering could remarkably improve the soil’s physical character and improve ecosystem microclimatic effect in maize growing period.Finally it could increase corn yield.更多还原