Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 408914
Title Will higher minimum temperatures increase corn production in Northeast China? An analysis of historical data over 1965-2008
Author(s) Chen Changqing, ; Lei Chengxia, ; Deng Aixing, ; Qian Chunrong, ; Hoogmoed, W.B.; Zhang Weijian,
Source Agricultural and Forest Meteorology 151 (2011)12. - ISSN 0168-1923 - p. 1580 - 1588.
Department(s) ATV Farm Technology
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) climate-change - phasic development - potential impact - soybean yield - winter-wheat - crop yields - rice - sensitivity - growth - trends
Abstract Recent crop model projections have shown that crop production may benefit from warming, especially in the high latitudes, but hard evidence is limited. In this study we conducted correlation and regression analyses of climate records of seventy-two meteorological stations and records of corn yield over the period 1965–2008 in Northeast China. It was found that over these forty-four years, the diurnal mean, minimum and maximum temperatures during corn growing season increased on average by 0.31 °C, 0.42 °C and 0.23 °C every ten years, respectively. No significant change in precipitation was found, although differences between years were large. The daily minimum temperature was the dominant factor to corn production. Corn yield was significantly correlated with the daily minimum temperature in May and September. According to a regression analysis of the anomalies of corn yield and air temperature, a 1.0 °C increase in daily minimum temperature in May or September will lead to an increment of 303 kg ha-1 or 284 kg ha-1 in corn yield, respectively. Corn varieties with longer growth duration will profit most from the climatic changes but agronomic practices may have to be modified to address expected weather extremes such as droughts and periods with heavy rainfall
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