通过 Rc- 1型保水剂和保水抗旱型种衣剂在宁南山区旱地地膜玉米上的应用试验结果表明 ,其均能增强土壤的保墒抗旱能力 ,有效改善玉米产量构成因素和提高玉米产量 ,各处理较对照产量差异均达到极显著水平。 The results of applying Rc-1 water-retaining agent and water-saving and drought-resistant seed coating agent on dryland mulching corn in the south of Ningxia showed that all of them can enhance soil moisture resistance and drought resistance, effectively improve the yield components of maize and increase the yield of maize Compared with the control, the yield differences reached the extremely significant level.