【摘要】 根据沈阳1980～2004年的农业气候资料及玉米生产状况,初步研究了光照、温度、水分对沈阳地区玉米生产的影响。结果表明:降水量是影响沈阳地区玉米气象产量的主要指标,影响关键期在4月中旬～5月中旬和7月上旬～8月下旬,积温次之,影响关键期在7月上旬～8月下旬,光照影响不明显。更多还原

【Abstract】 Based on Shenyang agricultural climate information and maize production situation from 1980 to 2004,the preliminarily effects of the agricultural climate condition on maize yield in Shenyang region were studied.The results showed that the main factor of maize climatic yield was rainfall during the whole maize planting stage in Shenyang.The second factor was the accumulated temperature.Sunshine was basically no effect on the maize yield.更多还原