This communication provides a preliminary approach to comprehensive yield forecast of some crops in a larger area. First, the yield data of maize, soybean and rice obtained in 55 cities and counties of the Northeast C...This communication provides a preliminary approach to comprehensive yield forecast of some crops in a larger area. First, the yield data of maize, soybean and rice obtained in 55 cities and counties of the Northeast China from 1951—1973 were used to analyse their relations to temperature,展开更多
文摘This communication provides a preliminary approach to comprehensive yield forecast of some crops in a larger area. First, the yield data of maize, soybean and rice obtained in 55 cities and counties of the Northeast China from 1951—1973 were used to analyse their relations to temperature,
