Uptake of carbon and nitrogen through roots of rice and corn plants, grown in soils treated with 13C and 15N dual-labeled cattle manure compost

摘要: Abstract Nitrogen and carbon dynamics in paddy upland soils for rice cultivation soil corn was investigated by using 13C 15N dual-labeled cattle manure compost (CMC). In a with low fertility, took up nitrogen from the CMC at rates ranging 0.685 to 1.051% of C 17.6–34.6% N applied. The concentration much higher roots than plant top, whereas differed slightly between them, indicating that organic taken preferentially accumulated roots. recovery top tended be soil, applied recovered same level both soils. experiment farming along growth final were 2.16 17.2% experiment, very large amount ...