摘要
生产潜力的评价是农业生产区域化和因地制宜发展生产的基础,也是确定高效农业投资方向和商品粮基地建设的依据。山西省小麦光合生产潜力为800—1500公斤/亩,光能利用率3%左右;光温生产潜力为700—1100公斤/亩,光能利用率2.4%左右;气候生产潜力为400—600公斤/亩,光能利用率1.1—1.4%;现实生产水平不足200公斤/亩,光能利用率仅0.54%左右,小麦生产具有很大的潜力。目前应采取以培肥地力为中心中综合技术。把东西部丘陵山区作为重点,通过提高水分利用率,开发小麦气候生产潜力。
The photosynthetic,photothermal and climatic productivities of wheat in Shanxi are 800~1500k/mu,700 ~1100kg/mu and 400~600kg/mu and the efficiencies of using solar cnergy are 3%,2.4% and 1.1~1.4% respectively.The present actual yield is only less than 200kg/mu with an efficiency of using solar cnergy of 0.54%.Thus there is a great potentiality in wheat yield.In order to dcvelop this potential production and to im- prove the efficiency of using water,improving soil fertility is quite important especially in Eastern and Westrn hilly regions ofShanxi.
关键词
山西
小麦
生产潜力
气候
评价
Wheat
Potential production
Efficiency of usingsolar energy