摘要
利用美国的ＣＥＲＥＳ玉米模拟模式对河南省伊川县１９９２、１９９３年共６期玉米分期播种资料进行了模拟，对生育期和籽粒产量的模拟效果较好。经对播种密度、播种日期、播种深度与籽粒产量关系的数值试验，提出高产密度标准为８．２５（高肥水田块可达９．７５）株·ｍ－２，最佳播期为５月３１日～６月５日和最适播种深度为６ｃｍ左右。经对河南省南阳市大田玉米生长发育的模拟验证，平均相对误差率为５．６％，并可用理论计算的逐日太阳辐射代替实测太阳辐射进行生长模拟。
In the context of US CERESmaize model simulation was conducted of 1992～1993 data of maize sown at a range of times in Yichuan county, Henan province, resulting in good simulations of growth conditions and yield per hectare and from the relation of stand density and sowing time to the yield were proposed an appropriate density of 8.25 and even 9.25 stands·m-2 in fields of sufficient fertile and water supply, optimal sowing period from May 31～July 5 and 6 cm depth. Comparison with simulations of openfield maize raised over Nanyang, Henan showed mean relative error of 5.6 %. Also, it was demonstrated that theoretical solar radiation could be used in place of measurements on a daily basis so that the model is applicable for operational purpose.
出处
《南京气象学院学报》
CSCD
1997年第4期522-528,共7页
Journal of Nanjing Institute of Meteorology
