Heilongjiang Province, The Quality And Efficiency And Sustainable Development Of Agricultural Fertilization Strategy Of Research

Both chemical fertilizers and manure are the important substances for agriculture production, and their inputs are closely related with the total amount and quality of a- griculture products, environment protection and soil fertility levels . This paper anal- ys~d present fertilizer utilization situation in Heilongjiang province, and proposed the fertilization tactics for quality benefit and sustainable agriculture based on ecological and plant nutrition theories. The full text includes six sections: 1. Proved the unreplaceable role of chemical fertilizers in grain yield increase by ana- lyzing the relationship between annual chemical fertilizer utilization amount and total grain yield in the world, in China and in Heilongjiang; 2. The lower quality of agriculture products is due to improper application of chemi- cal fertilizers, whereas scientific utilization of such fertilizers can improve the quality of agriculture products. 3. Demonstrated that proper application of chemical fertilizers may increase soil fer- tility levels for the reason of matter cycle; 4. Explained that the environment pollution effects of chemical fertilizers are caused by improper utilization of them through presenting the composition of qualified chemical fertilizers. 5. Discussed the significance of organic materials on soil ecologic system; 6. Concluson, put forward the fertilization tactics for the quality enefit and sus- tainable agriculture in Heilongjiang province.