覆盖稻草及加盖薄膜对免耕马铃薯农艺性状及品质的影响

研究了覆盖不同厚度稻草（4、8 cm）以及加盖普通地膜和黑色地膜对免耕马铃薯农艺性状及品质的影响。结果表明：覆盖不同厚度稻草的影响效果具有显著的差异,与覆盖稻草4 cm相比,覆盖稻草8 cm可提高单株结薯数和产量,降低绿薯率,但降低出苗率和株数,其他品质参数差异不明显;在覆盖稻草4 cm的基础上加盖薄膜具有提高单薯重和产量的作用,但在覆盖稻草8 cm的基础上加盖薄膜则对出苗不利,降低了出苗率和株数,降低产量;加盖地膜能显著降低绿薯率,其中黑色地膜的效果优于普通地膜。

Effect of rice straw mulch and adding plastic membrane on agronomic performance and quality of potato with no-tillage

Different thickness of straw mulches(4,8 cm) with transparent or black plastic membrane were designed in the experiment to study the effect of different covering treatments on the agronomic performances and quality of potato with no-tillage.The results indicated that effects of straw mulches with different thickness(4,8 cm) were significantly different.Compared with 4 cm rice straw mulch,tubers per plant and yield of 8 cm rice straw mulch were higher but green tuber proportion,germination rate and number of plant were lower,while other parameters were no difference;When mulching 4 cm rice straw added plastic membrane,tubers per plant and yield were significantly increased,and mulching 8 cm rice straw added plastic membrane,germination rate,number of plant and yield were significantly decreased;added plastic membrane could reduced green tuber proportion significantly,and effect of the black plastic membrane was better than that of the transparent plastic membrane