Effects of nitrogen rate and ratio of base fertilizer and topdressing on uptake , translocation of nitrogen and yield in wheat 施氮量和底追比例对小麦氮素吸收转运及产量的影响
2.
In order to decrease expenditure and increase total economic efficiency , the key technique consisted of a complete sets of base fertilizer heavily , stabilizing n , increasing p and k , herbicide , coordinating of irrigation , fertilization and dpc regulation in first - flowering time , water - saving by furrow irrigation , simple pruning of cotton plants , chemical accelerating the ripening and so on 以重施基肥，稳氮增磷增钾，化学除草，初花期水、肥、控同步，沟灌节水，简化整枝及化学催熟等项技术组装配套，达到节支省工，提高整体经济效益。
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