[Method of evaluating maize yield by agro-meteorological index]
1991
Jong Bong Gi (Inst. for Crop Cultivation, Pyongyang (Korea Democratic People's Republic))
It is shown the influence of the agro-meteorological condition on the maize yield. The effect of the average temperature in 30 days before silking and 40 days after silking in maize on 1000 grain weight is clarified. Grain number per ear can be defined by ratio of plant height and leaf number on June 30th
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