Effects of Straw and Waste Application on Soil Aggregates and Soil Carbon, Nitrogen and Phosphorus in the Jasmine Garden[J]. 2017, 31(4): 191-197.
DOI:
Effects of Straw and Waste Application on Soil Aggregates and Soil Carbon, Nitrogen and Phosphorus in the Jasmine Garden[J]. 2017, 31(4): 191-197. DOI: 10.13870/j.cnki.stbcxb.2017.04.031.
Effects of Straw and Waste Application on Soil Aggregates and Soil Carbon, Nitrogen and Phosphorus in the Jasmine Garden
In order to study the effects of straw and waste application on the soil aggregates and soil carbon
nitrogen and phosphorus in the riverside jasmine garden in Fuzhou
the distribution and stability of soil aggregates
including >0.25 mm soil aggregates (DR0.25)
mean weight diameter (MWD)
geometric mean diameter (GMD)
fractal dimension (D)
and the content and stoichiometric ratio of soil carbon
nitrogen and phosphorus of 0—10
10—20 and 20—30 cm soil layers were examined in the control (C)
straw (S)
straw+gypsum (SG)
straw+biochar (SB)
straw+slag (SS) amendments plots. The results showed that 0.053~0.25 and 0.25~2 mm particles were the predominant contributor. Compared with the control
DR0.25
MWD and GMD under the straw treatments decreased by 19.86%
19.18%
and 37.98%
respectively
whie D increased by 14.26%
and aggregate stability decreased. Compared with the straw amendment plots
in the straw+gypsum
straw+biochar
straw+slag treatments plots
both DR0.25 and MWD varied slightly
and GMD increased by 2.34%
0.63%
and 12.67%
respectively
whereas
D was reduced by 2.31%
6.26%
and 5.01% respectively
furthermore
aggregate stability also increased. Compared with control
in the straw
straw+gypsum
straw+biochar
straw+slag treatments plots
carbon
nitrogen and phosphorus content were significantly increased in 0—10 cm soil
however
those in 10—20 and 20—30 cm soil layers varied slightly
showing the accumulation of nutrients to the surface soil layer. In all
the results indicating that biochar and slag can be taken as the combination amendments with straw returning to improve the effect of straw returning.
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Related Author
YANG Miaoduo
LU Baoyi
CHEN Lijia
CHEN Shuo
HAN Qi
SUN Haihang
WANG Shuai
CHEN Lei
Related Institution
College of Agriculture, Jilin Agricultural Science and Technology College
College of Agriculture, Jilin Agricultural University
Faculty of Geographical Science, Beijing Normal University
College of Geography and Environmental Science, Northwest Normal University
State Key Laboratory of Soil and Water Conservation and Desertification Control, Northwest A&F University, Yangling