不同地面覆盖物对小拱棚草莓产量及其经济效益的影响

在小拱棚内栽培草莓,分别覆盖麦草,地膜、砂子3种地面覆盖物,以不覆盖为对照(ck)。试验结果表明:1.物候期以地膜覆盖最早,早期产量占总产量的30％;麦草覆盖的最迟,早期产量占总产量的3％;二者始收期相差12天,其余居中。2.产量以麦草覆盖的最高,对照最低,其余二者居中。总产值以对照最低,砂子覆盖的其次,麦草覆盖的最高,地膜略低于麦草,二者无显著差异。且地膜覆盖亩投资少,管理方便,是较好的地面覆盖形式。

EFFECTS OF DIFFERENT GROUND COVERS ON OUTPUT AND PROFIT OF STRAWBERRY PLANTED IN SMALL PLASTIC TENT

Strawberries planted in small plastic tent were treated with four treatments: wheat straw, plastic film and sand as ground cover materials, the uncovered as control. The results have shown that: ① phenophases appear earliest and latest, early outputs account for 30% and 3% of total outputs in plastic film and wheat straw treatments respectively, the gap of first harvesting times reaches 12 days between the two treatments. The rest occupy the middle; ② output is highest in wheat straw treatment, lowest in the contror,and medium in the rest. Wheat straw treatment ranks first in total output value, then plastic film, sand and the control treatments, but plastic film is not significantly less than wheat straw treatment in total output value, furthermore, it needs less in ~investment per unit and is more convenient in management than wheat straw _treatment, therefore, plastic film is better ground cover material.