保水剂能改善土壤的理化性状,促使土壤保有良好的生物性状,从而能满足甘蔗不同生育时期对水分、氧气、热量、养分等条件的要求,并能够较好地协调这些生长条件.在华海布置试验点,分75、105 kg/hm2 不同施用量及盖膜与不盖膜的处理.试验结果表明:在同为盖膜栽培的情况下,增施保水剂可以提高甘蔗产量,盖膜并施用 75 kg/hm2 水平的保水剂较对照处理增产 4.70%;不盖膜施用 105 kg/hm2 水平的保水剂较对照处理增产 6.17%;盖膜栽培并施用 105 kg/hm2 水平的保水剂,较对照处理增产 14.08%.综合分析的结果是:盖膜栽培并施用 105 kg/hm2 水平的保水剂的处理,产生了最高的增产水平.
The super absorbent polymer could improve the physical and chemical properties of the soil and make it have good biological properties,so as to meet the requirements of water,oxygen,heat,nutrients and other conditions at different growth stages of sugarcane,and could well coordinate these growth conditions.The test had carried out in Huahai,and divided it into 75 kg/hm2,105 kg/hm2 different application rates and treatment with and without film covering.The results showed that the yield of sugarcane per hectare could be increased by applying super absorbent polymer under the same condition of film covering cultivation.Compared with the control treatment,the yield of sugarcane was increased 4.70%,6.17%and 14.08%by applying super absorbent polymer at the level of 75,105 kg/hm2 without covering film,and 105 kg/hm2 with covering film respectively.According to comprehensive analysis,the highest yield was obtained by applying super absorbent polymer at 105 kg/hm2 and covering film cultivation.