Abstract

Abstract: Incubation test and pot experiments were conducted with haplic luvisols and hydragric anthrosols to study the effects of neem seed extracts (NⅠ, NⅡ) on nitrification and immobilization of ammonium sulfate. NⅠ could significantly inhibit the nitrification of Napplied to the two soils. NⅡ was effective in promoting the immobilization of NH₄⁺-N. Pot experiments showed that NⅡ could increase the use efficiency of chemical nitrogen significantly in fimic anthrosols.

Key words: biomass conversion and expansion factors., Cubist model, random forest, boosted regression trees, national forest inventory

CLC Number:

S158.5

ZHANG Xiaoxiao, SHEN Qirong, TAN Jiankang, MAO Zesheng . [J]. Chinese Journal of Applied Ecology, 2002, (11): 1417-1420.

References

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