DANG Tinghui, HAO Mingde, LI Qing, et al. Effect of Position Fertilization on Soil Nutrient of Heku Soil Profile[J]. Bulletin of Soiland Water Conservation, 1995, 14(6): 28-33.
DANG Tinghui, HAO Mingde, LI Qing, et al. Effect of Position Fertilization on Soil Nutrient of Heku Soil Profile[J]. Bulletin of Soiland Water Conservation, 1995, 14(6): 28-33.DOI:
we analysed the soil nutrient's change ofthree Helu soil layer under different treatments of fertilization.The results showed that the effectof fertilization on Helu soil layer's nutrient decreases with depth increasing(generally
0~20cm20~50cm 50~80cm).The nutrient's difference of topsoil is the biggest under differenttreatments
even though the nutrient's difference of the layers below topsoil is on the decrease
but their change tendency is the same as topsoil's.Compared with rare land
available nutrient ofsoil layers under CK are decreased.To evaluate comprehensively
the effect that different treat-ments improved soil fertility is NPMMPM