丘陵红壤旱地稻草覆盖与保水剂对秋糯玉米生长及产量的效应

摘要

在丘陵红壤旱地伏秋干旱条件下,研究了稻草覆盖与施用保水剂对鲜食糯玉米生长及产量的效应.结果显示:稻草覆盖和施用保水剂可以提高土壤的含水率和肥力,并改善玉米的产量构成因子,从而提高产量.在5个处理中,以5000kg/hm2稻草覆盖+施用30 kg/hm2保水剂处理的保水、增产效果最好.%The effects of rice straw mulching and super absorbent polymer application on the growth and yield of fresh - eating waxy corn in hilly red soil upland were studied under the condition of dry autumn. The research results showed that rice straw mulching and super absorbent polymer application could enhance corn yield through increasing the moisture content and fertility of soil, and improving the yield components of corn. Among 5 treatments, the treatment of 5000 kg/hm2 rice straw mulching + 30 kg/hm2 super absorbent polymer application had the best water - retaining and yield - increasing effects.