长春地区玉米的光温水生产潜力及增产途径

本文引用Ｒ．Ｌ．Ｌｏｏｍｉｓ［１３］的观点，参考黄秉维［２］、江爱良［３］的模式，于沪宁［４］的方法，长春地区最近３０年的气象资料，计算了长春地区玉米的光温水生产潜力，发现该地区玉米生产还有很大的光温水生产潜力尚未充分发挥出来。如采取适当的栽培措施，克服众多的产量限制因素，充分发挥该地区的光温水生产潜力，可大幅度提高玉米产量．与此同时分析了长春地区影响玉米光温水潜力发挥的限制因子，并提出了增产途径．

THE POTENTIAL PRODUCTIVITY OF RADIATION,TEMPERATURE AND WATER AND THE YIELD INCREASING WAYS ON CORN(ZEA MAYS L.)IN CHANG CHUN DISTRICRT

The potential productivity of radiation,temperature and water of corn In Changchun District was calculated according to the model of Huang Bingwei,Jiang Aillang and the method of Yu luning as well as data of Changchun District.It was found that much potential productivity of radiation,temperature and water was not translated into real productivities yet,and the yield of corn wonld be increased largely if some on cultivation methods were taken to overcome the limiting of yield-reducing fuctors.The constraint factors of yield Was analysed and the yield-increasing ways and the effective utililzation of radiation.temperature and water were discusssed finalls.