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Mobility and leaching of nitrogen forms through sandy and calcareous soils as affected by the application of some soil amendments  [2009]

Merwad, A.M.A.; Awad, E.A.M..; Mohamed, I.R.; Dahdouh, S.M.M.;

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The obtained results can be summarized as follows: Application of CM, BM, T and WCF increased the available nitrogen forms (NH4+ and N03) due to their effect on CEC and pH of the media. The highest values of leached (NH4++NO3-)-N were found under the application of CM+T+acidic WCF in the first leachate of calcareous soil, but in the sandy soil the highest values were observed under the application of CM+T+S and acidic WCF in the 5th soil leachate Application of chicken manure individual or combined with other soil amendments increased the values of residual (NH4++NO3)-N in the soil compared to the biogas manure treatments. The greatest value residual available (NH4++N03)-N was recorded at the third layer (20-30 cm) of soil columns of both sandy and calcareous soils, while the lowest value was recorded at the first layer (0-10 cm). Nitrification rate was clearly affected by the different soil amendments and their combinations, The greatest value of nitrification rate was observed under the addition of BM+T+S+acidic WCF in the second layer (10-20cm) of sandy soil, while in the calcareous soil, the highest value was observed under the addition of CM+T+S in the same layer .The highest mean value of nitrate : ammonium ratio for different treatments were 0.67 using biogas manure and 0.24 with chicken manure in the sandy soil, but in the calcareous soil, the greatest one were 0.48 using BM and 0.36 with CM. The highest accumulated leached (NH4++NO3)-N were observ
ed under treatment of CM+T+S+neutral WCF in both sandy and calcareous soils.
来自期刊
Zagazig Journal of Agricultural Research
ISSN : 1110-0338

书目信息

语言:
English
类型:
Bibliography
自何时收录于AGRIS:
2011
卷:
36
期:
3
起始页:
509
结束页:
540
所有题名:
"Mobility and leaching of nitrogen forms through sandy and calcareous soils as affected by the application of some soil amendments"@eng
其它:
"(Ar, En)"
"1 fig. 10 tables; 25 ref."
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书目信息

语言:
English
类型:
Bibliography
自何时收录于AGRIS:
2011
卷:
36
期:
3
起始页:
509
结束页:
540
所有题名:
"Mobility and leaching of nitrogen forms through sandy and calcareous soils as affected by the application of some soil amendments"@eng
其它:
"(Ar, En)"
"1 fig. 10 tables; 25 ref."