Effects of Poultry Manures on the Soil Zn Content and Zn Availability

doi:10.7668/hbnxb.2011.02.039

Abstract

Abstract: Zn content in livestock and poultry manures is generally high,the effect of different rate of organic chicken manure and duck manure on the characteristic of soil Zn accumulation and Zn bioavailability were discussed by pot experiment.The results showed that the total Zn and available Zn contents of soil increased significantly with the increasing amounts of the organic chicken manure and duck manure.The relationship between the amounts of organic manure and the contents of soil total Zn,available Zn could be simulated by mathematic curve.Test results suggested that both correlative coefficient attained very significant level.In 100 years,the farmland soil Zn content in the Anxin county of Hebei would not surpass the First Chinese Environmental Quality Standard for soils(GBl5618-1995) (pH>7.5,Zn≤100 ms/ks)ifthe organic chicken manure and duck manure application amounts were less than 14. 3 t/hm2 soil,16.8 t/hm2 soil,respectively.The relationship between soil total Zn content and Zn content of oliseed rape accorded with linear model.According to the tolerance limit of zinc in food(GBl3106-91),the soil Zn content were less than 472 mg/kg.

Key words: Poultry manures, Soil, Zinc content, Availability

CLC Number:

S141

RU Shu-hua, ZHANG Guo-yin, SU De-chun, SUN Shi-you, WANG Ling, GENG Nuan, CHEN Gui-jin. Effects of Poultry Manures on the Soil Zn Content and Zn Availability[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(2): 186-191. doi: 10.7668/hbnxb.2011.02.039.

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