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根据烟台地区光、热、水等气候资源实况,运用FAO等提供的生产潜力估算方法,认真分析了当地小麦、玉米不同栽培技术体系的生产潜力,进而对两个作物合理组配的4种一年二作技术体系作出评价:(1)晚播“独秆”小麦—套种晚熟玉米光温生产潜力最大,气候生产潜力也较高,目前宜作为高产攻关的二作技术体系;(2)中茬“中播”小麦—晚套中熟玉米气候生产潜力最高,稳产性好,宜作为当地大面积推广应用的主要二作技术体系;(3)晚播“独秆”小麦—平播中熟玉米气候生产潜力较高,水热综合满足状况良好,适合在产量水平较低、而机械化水平较高的条件下推广应用;(4)早茬“精播”小麦—早套中熟玉米气候生产潜力最低,稳产性差,应尽快用其它二作技术体系予以更替。
According to the actual situation of light, heat, water and other climate resources in Yantai, the potential productivity of wheat and maize was carefully analyzed by using the method of estimating the production potential provided by FAO, etc. Then the four kinds of crops The second year of technology system to make an assessment: (1) late sowing “single-stalk” wheat - Intercropping late-maturing corn has the greatest potential for light and temperature production, climate potential is also high, should now be used as a high yield of two technical systems; Crops in the “sowing” - late sets of mature corn has the highest potential climate productivity, good stability, should be used as a large area for the promotion and application of major two technical system; (3) “sowing” late sowing wheat - sowing cooked Maize has a high potential for climate production and good comprehensive hydrothermal conditions, which is suitable for popularization and application under the condition of low production level and high mechanization level. (4) Early sowing of “sowing” wheat - early maturing maize climatic production The lowest potential, poor stability of production, should be replaced as soon as possible with the other two technical systems.