[Objective] This paper aimed to analyze the production status and balanced yield-increasing technology for wheat-corn double cropping production in Henan Province. [Method] Natural conditions in Henan Province, status and potential of wheat-corn double cropping production were explored, and factors affecting wheat-corn double cropping production capacity were analyzed. [Result] Yield-increasing of grain in Henan Province is achieved mainly depending on the increase of wheat and corn production, and corn has a relatively large yield-increasing potential. Research on high-yield and efficient technology for wheat-corn double cropping production in Henan Province has laid the technical basis for balanced yield-increasing of annual double cropping production. [Conclusion] This study provided a theoretical basis for grain production in Henan Province and a reference for the national food production.
[Objective] This paper aimed at exploring technological paths for improving grain productivity based on the conditions and production practice in Henan Province.[Method] The status and dynamics of grain production in Henan Province were analyzed as a whole.[Result] The total production of grain in Henan Province had generally shown a tendency of ascent.Total grain production in Henan Province was 54 370 thousand t,which was 2.5 times of the total grain production in 1978,as 20 974 thousand t.The growth of grain production was more and more relying on the improvement of grain yield per unit area.[Conclusion] This research had provided theoretical basis for the improvement of grain production in Henan Province as well as for the grain production of the whole country.
