摘要
在省内不同气候、土壤肥力地区进行了玉米自然生产力的试验研究．研究了积面、降水、土壤有机质的变化及其交互作用对玉米产量的影响程度，并可用模型对区域性玉米逢然生产力和不同气候年玉米产量进行预测。
The experiments of natural yield capacity of maize were done in regions of Heilongjiang province different in climate and soil fertility.The effects of accumnlated temperature,precip itation. soil organic matter and their interactions on maize yield were studied.A model was established to forecast the regional natural yield capacity of maize and its production in different climatic years.
出处
《东北农业大学学报》
CAS
CSCD
1994年第1期20-26,共7页
Journal of Northeast Agricultural University
关键词
玉米
区域
自然生产力
积温
预测
maize
region
natural yield capacity
accumulated temperature
precipitation
soil organic matter
forecast
