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Acta Agriculturae Boreali-Sinica
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中文
N. P. K. Application for Winter Wheat-Summer Maize Double Cropping System in Beijing Suburbs
Sun Zhengcai, Chen Guoping
ACTA AGRICULTURAE BOREALI-SINICA . 1993, (
4
): 99 -105 . DOI: 10.3321/j.issn:1000-7091.1993.04.020
