关键词: 稻秸秆, 麦秸秆, 有机-无机肥, 颗粒肥, 理化特性, 偏生产力

Abstract:

The straw-mixed granular fertilizer was made by blending the fresh straw of rice （Oryza Sativa L.） and wheat （Triticum aestivum L.） with nitrogen, phosphorus and potassium nutrients by stir chopping and template rolling. A field experiment was carried out to test the fertilizer’s application effect on Nei 5 you 8015 and Yangmai 20. The results showed that, the physicochemical properties of the straw granular fertilizer, such as organic matter content, nitrogen, phosphorus and potassium content, pH value, granularity, compressive strength, swelling rate and water retention rate, met or exceeded the relevant National Standards. Under base applying the straw granular fertilizer and topdressing nitrogen fertilizer at tillering stage, the yields of Yangmai 20 and Nei 5 you 8015 were the same as those of the high-yielding fertilizer application. The partial productivity of N and P2O5 increased significantly in Yangmai 20 and Nei 5 you 5015, but the K2O was different.

Key words: rice straw, wheat straw, organic-inorganic fertilizer, granular fertilizer, physicochemical property, partial productivity