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目前,英国生产的禾谷类秸秆仅有2%返回土壤,大多数被烧毁或搬出田间.由于焚烧秸秆影响环境,秸秆还田必将得到更加广泛的应用.麦秆的含氮量低于它被微生物分解时所需要的氮,因而,必然从土壤中吸收无机氮.本试验目的,一是了解麦秆分解时固定的无机氮对连作冬小麦吸收氮肥的影响;二是了解还田麦秆所含氮素有多少被连茬小麦吸收.试验在英国Rothamsted农试站的粉砂粘
Currently, only 2% of the cereal straw produced in the United Kingdom returns to the soil, most of which is burned or moved out of the field. Straw is also expected to be used more widely due to the impact of burning straw on the environment. Therefore, it is inevitable to absorb inorganic nitrogen from the soil.The purpose of this experiment is to understand the effect of immobilized inorganic nitrogen on nitrogen uptake by continuous wheat during wheat straw decomposition, and to understand the effect of nitrogen How much is being absorbed by stubble wheat. Test the silt sticking at Rothamsted station in England