STUDIES ON THE CHARACTERISTICS OF NITROGEN SUPPLY IN PADDY SOILS Ⅱ. EFFECT OF FERTILIZATION ON THE SOIL NITROGEN SUPPLY AND GRAIN YIELD OF DOUBLE CROPPING-RICE
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Abstract:
Field trials and micro-plot experiments using 15N-labelled ammounium sulfate were conducted on a silty clay paddy soil developed on alluvial deposits of the Fiangzhou Bay.The eaperiaients with same design for the early rice and Iate rice were laid ont segarately.in the same field for comparative investigation.
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Li Shi-ye, Wang Jia-yu, Kong Van-geng. STUDIES ON THE CHARACTERISTICS OF NITROGEN SUPPLY IN PADDY SOILS Ⅱ. EFFECT OF FERTILIZATION ON THE SOIL NITROGEN SUPPLY AND GRAIN YIELD OF DOUBLE CROPPING-RICE[J]. Acta Pedologica Sinica,1982,19(1):13-20.