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分析了黑土农田养分现状和肥料效应,阐明了有关农业措施对土壤培肥和粮食增产的作用,提出了实现黑土农田养分优化管理的对策与技术。图1,表1,参21。
The status of nutrients and fertilizers in black soil were analyzed. The effects of agricultural measures on soil fertility improvement and grain yield increase were clarified. The countermeasures and technologies to realize optimal nutrient management in black soil were put forward. Figure 1, Table 1, reference 21.