中国农业气象

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宁夏水稻光温资源潜力研究

贺仲康;苏焕兰;   

  1. 宁夏农业技术推广总站,宁夏农学院,
  • 出版日期:1992-10-10 发布日期:1992-10-10

STUDIES ON POTENTIAL RESOURCES OF RICE LIGHT AND HEAT IN NINGXIA

He Zhongkang(Ningxia Agrotcchnical station)Su Huanlan(Ningxia Agricultural College)   

  • Online:1992-10-10 Published:1992-10-10

摘要: 应用试验示范数据和生产实践资料研究宁夏水稻光温资源潜力.80年代宁夏水稻亩产500-566kg,光温资源还有潜力,在薄膜保温育秧条件下,可以从春季日平均气温上升到10℃以上播种,提早到4℃左右播种,育秧期可以从现在的4月15-25日,提早到3月21日至4月5日??水稻亩产可以从500kg左右提高到600kg以上,配合最佳技术可达800kg以上,光能利用率可以从80年代的1.9%提高到2%以上.

关键词: 水稻, 光温资源潜力

Abstract: The daily mean temperature of sowing can be reduced to 4℃from>10℃covered with plastic film in Ningxia. It means that sowing date may be moved up from Apr. 15-25th. to Mar. 21th-Apr. 5th. The average yield can be increased from 500 kg/mu to 600kg/mu. May get 800 kg/mu with advanced farming technigues. The rate of solar energy utilization can be raised from 1.9% to over 2% in 1980s.

Key words: Rice Potential resources of light and heat, Rice Potential resources of light and heat