Effects of Nitrogen Fertilizer Combined with Conditioner on Soil Aggregate,Organic Carbon and Yield of Naked Oats
To determine the effects of nitrogen fertilizer combined with soil conditioner on soil physical struc-ture,organic carbon composition and yield of naked oats(Avena chinensis L.),five treatments including no(CK),80% nitrogen fertilizer(N80),100% nitrogen fertilizer(N100),80% nitrogen fertilizer+conditioner(PN80),100% nitrogen fertilizer+conditioner(PN100)were set up in this experiment to study the interaction between soil physical structure and soil organic carbon components and the yield of naked oats.The results showed that adding conditioner on the basis of nitrogen fertilizer increased the capillary porosity(7.2%-30.6% ),reduced the soil bulk density(3.4%-13.5% ),improved the soil physical structure,promoted the content of soil organic carbon(2.8%-73.4% ),and increased the dry matter quality and yield of naked oats.Among them,80% nitrogen fertilizer+conditioner(PN80)treatment further improved the soil physical structure and promoted the accumulation of organic carbon components under the condition of stable yield.The results showed the action mode of the conditioner on soil physical structure,organic carbon component and yield of naked oats,which provided a technical basis for local green production of naked oats.
万方数据
维普
