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- W2993006975 abstract "Agricultural extension officers and agricultural management officers in Longkou City,Shandong Province were surveyed by means of semi-structured interview.Yield limiting factors and technical measures to improved yield were assessed.The main yield limiting factors of wheat were low fertility of cultivars,early sowing date,excessive sowing quantities,and irrational irrigation and nitrogen application.The main technical measures to improve yield of wheat in five years are soil testing,extending improved breed,and returning maize straw to field.The main yield limiting factors of maize were extensive crop management,low sowing quality,and drought.The main technical measures to improve yield of maize in five years are delaying interplant time and adopting varieties that is adapt to the environment.In the long run,to safeguard the continuous improvement of farmers' crop yield calls for the combined action of crop management,suitable varieties,preventive and remedial measures for extreme weather events,and increased food subsides." @default.
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- W2993006975 date "2010-01-01" @default.
- W2993006975 modified "2023-09-28" @default.
- W2993006975 title "Assessment of yield limiting factors and technical measures to improve yield in wheat-maize double-cropping system:A case study of Longkou City,Shandong Province" @default.
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