施肥管理与作物持续增产

The Fertilizer Application Management and Sustained Increase in Yield of Crops

根据多年田间试验结果及施肥和农作物产量吸携营养物质的统计分析，计算了河南省大量营养元素的平衡状况，并阐述了肥料对土壤性质的长期影响及提高土壤肥力、创造土壤合理的营养水平，实现作物高产。

Based on the field tests for many year and the statistics analysis on the nutrient absorption by crop through fertilizer application,the status of nutrient balance of macro-element in Henan Province was counted and the influence of fertilizer application for long term on soil property was confirmed.Inder to obtain high yield,stable yield and reproduceable yield increase in crops the management methods of fertilizer application were definite for increasing soil fertility and creating rational nutrient level in soil.