地膜覆盖和保水剂对甘蔗生长及产量的影响

设保水剂、地膜覆盖及只淋等量清水为对照3个处理,测定对甘蔗农艺性状及经济效益的影响。结果：从蔗茎产量分析,保水剂及地膜覆盖分别比对照增8985kg/hm2、8415kg/hm2,分别增9.8%、9.2%；从含糖量分析,保水剂及地膜覆盖分别比对照增1396.5kg/hm2、1246.5kg/hm2,分别增10.8%、9.6%；从经济效益分析,保水剂及地膜覆盖分别比对照增3592.5元/hm2、3427.5元/hm2,分别增7.84%、7.48%。结论：保水剂对甘蔗生长及产量有促进作用,且成本低,效益高,值得推广应用。

Effect of Film Mulching and Water-retaining Agent on Sugarcane Growth and Yield

The experiment was conducted to test the effect on agronomic trait and economic benefit of sugarcane by three treatments water-retaining agent, film mulching and water as a control. The results showed that the cane yield of water-retaining agent and film mulching increased 8985 kg/ha and 8415 kg/ha, increase by 9.8% and 9.2%, respectively; the sugar yield of water-retaining agent and film mulching increased 1396.5 kg/ha and 1246.5 kg/ha, increase by 10.8% and 9.6%, respectively; the economic benefit of water-retaining agent and film mulching increased 3592.5 kg/ha and 3427.5 kg/ha, increase by 7.84% and 7.48%, respectively; from the economic analysis, more than 3592.5 yuan/ha, 3427.5 yuan/ha were increased, in comparison between the treatments and the control. Conclusion： the water-retaining agent was helpful for growth and yield of sugarcane, and it was low cost and high benefit for popularizing application.