[Effect of long-term single application of chemical fertilizer on soil properties and crop yield].
A long-term located experiment showed that single application of chemical fertilizer basically sustained the quantity level of soil organic matter, nitrogen and phosphorous, reduced the energy level of soil humus and enhanced its condensation degree, aromaticity and aging function. The corp yield was basically the same as that of combined application with organic manure.
Lü
J
J
Northwestern Agricultural University, Yangling 712100. ljl@public.xa.sn.cn
Zhang
Y
Y
Wang
X
X
Zhao
G
G
Zhang
C
C
D018556:Crops, Agricultural / Q000187:drug effects* / Q000254:growth & development; D005308:Fertilizers / Q000009:adverse effects*; D006812:Humic Substances / Q000378:metabolism; D009584:Nitrogen / Q000378:metabolism; D012987:Soil / Q000032:analysis
D005308:Fertilizers; D006812:Humic Substances; D012987:Soil; D009584:Nitrogen