EVALUATION OF METRIBUZIN DEGRADATION AND ITS HALF LIFE IN SOIL AFFECTED BY DIFFERENT ORGANIC FERTILIZERS UNDER FIELD CONDITIONS

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ASADI S.; ZAVAREH M.; SHOKRI H.; SHAHIN ROKHSAR P.

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Journal: Applied Agricultural Research Year:2015 | Volume:- | Issue:108 Page(s): 120-126

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Title

EVALUATION OF METRIBUZIN DEGRADATION AND ITS HALF LIFE IN SOIL AFFECTED BY DIFFERENT ORGANIC FERTILIZERS UNDER FIELD CONDITIONS

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Keywords

RICEQ1

FOLIAR APPLICATIONQ1

NITROGEN EFFICIENCYQ2

PROTEIN YIELDQ2

Abstract

In order to the investigate the effect of various organic fertilizers on metribuzin persistence and degradation in soil, an experiment was conducted in completely randomized block design with factorial arrangement with 3 replications in the research fields of Ferdowsi University of Mashhad-Iran. Experimental factors included application of 4 different organic fertilizers (municipal waste compost (MC), poultry manure (PM), cow manure (CM) and sheep manure (SM)), at the rate of 40 ton ha-1 with control treatment (No fertilizer application (NF)) and metribuzin application at two levels (525 and 1050 g ha-1 (WP %75)). For determination of metribuzin residue, soil samples were taken from 0 to 15 cm depth after 2 hrs, 3, 7, 15, 30, 55, 90 and 120 days after application of metribuzin. Metribuzin residue was measured with HPLC. Results show that metribuzin degradation rate increased with the increase of organic fertilizers application. Increasing metribuzin application rate increased residue in soil, but it had no effect on metribuzin half life significantly. So that metribuzin degradation in MC and PM treatments was higher than other treatments. Metribuzin half life when applied at the rate of 525 g ha-1 was 66 days in NF treatment and 46 and 50 days in MC, PM treatments respectively. Based on the present results application of organic fertilizers affect the microbial populations and their activities may have an important role in metribuzin biodegradation in soil.

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APA: Copy

ASADI, S., ZAVAREH, M., SHOKRI, H., & SHAHIN ROKHSAR, P.. (2015). EVALUATION OF METRIBUZIN DEGRADATION AND ITS HALF LIFE IN SOIL AFFECTED BY DIFFERENT ORGANIC FERTILIZERS UNDER FIELD CONDITIONS. APPLIED FIELD CROPS RESEARCH (PAJOUHESH & SAZANDEGI), -(108), 120-126. SID. https://sid.ir/paper/214750/en

Vancouver: Copy

ASADI S., ZAVAREH M., SHOKRI H., SHAHIN ROKHSAR P.. EVALUATION OF METRIBUZIN DEGRADATION AND ITS HALF LIFE IN SOIL AFFECTED BY DIFFERENT ORGANIC FERTILIZERS UNDER FIELD CONDITIONS. APPLIED FIELD CROPS RESEARCH (PAJOUHESH & SAZANDEGI)[Internet]. 2015;-(108):120-126. Available from: https://sid.ir/paper/214750/en

IEEE: Copy

S. ASADI, M. ZAVAREH, H. SHOKRI, and P. SHAHIN ROKHSAR, “EVALUATION OF METRIBUZIN DEGRADATION AND ITS HALF LIFE IN SOIL AFFECTED BY DIFFERENT ORGANIC FERTILIZERS UNDER FIELD CONDITIONS,” APPLIED FIELD CROPS RESEARCH (PAJOUHESH & SAZANDEGI), vol. -, no. 108, pp. 120–126, 2015, [Online]. Available: https://sid.ir/paper/214750/en

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