中国稻米

• 专论与研究 • 上一篇    下一篇

信阳地区粳稻晚播气候资源利用率分析

  1. 信阳市农业科学院,河南 信阳464000
  • 出版日期:2016-11-20 发布日期:2016-11-20
  • 基金资助:

    河南省重大科技专项“豫南稻区籼改粳技术研究与产业化”(121100110200);国家水稻产业技术体系建设专项(CARS-01-01A)

Analysis of Climate Resources Utilization Efficiency of Late Sowing Japonica Rice in Xinyang Area

  • Online:2016-11-20 Published:2016-11-20

摘要:

以信阳市近30年(1980-2010年)水稻生育期内太阳总辐射、日平均温度和降雨量数据为基础,产量均按照7 500 kg/hm2作为计算指标,利用前人的气候资源利用率分析方法,计算信阳粳稻晚播后气候资源利用率。结果表明,信阳粳稻晚播后光能利用率平均提高0.03个百分点,热能利用效率平均提高1.74%,降水利用效率平均提高10.85%。

关键词: 粳稻, 晚播, 气候资源利用率, 信阳市

Abstract:

Based on global solar radiation, daily average temperatures and rainfall in rice growth period during the past 30 years(1981-2010) in Xinyang City, the yield of 7 500 kg/hm2, using the predecessors' research climate resource utilization analysis method, the climate resource utilization were calculated after delayed sowing of japonica rice. The results showed that the utilization efficiency of solar energy increased by 0.03 percentage point, the utilization efficiency of thermal energy increased by 1.74%, and the utilization efficiency of precipitation increased by 10.85% after delayed sowing of japonica rice in Xinyang City.

Key words: japonica rice, late sowing, climate resource utilization efficiency, Xinyang City

中图分类号: