INFLUENCE OF ORGANIC AMENDMENTS ON CHEMICAL AND MICROBIOLOGICAL PROPERTIES OF SOILS OF DISTRICT SOLAN (HIMACHAL PRADESH)
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Date
2014
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Journal ISSN
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Publisher
UHF,NAUNI
Abstract
ABSTRACT
A laboratory incubation experiment entitled “Influence of organic
amendments on chemical and microbiological properties of soils of district Solan
(Himachal Pradesh)” was conducted in the Department of Soil Science and Water
Management, Dr. Yashwant Singh Parmar University of Horticulture and Forestry,
Nauni, Solan (H. P.) during 2014. Eight types of soil samples were collected from
selected areas of Solan district on the basis of soil texture from the depth of 0-15 cm
and treated with three organic amendments (Farm yard manure, vermicompost and
city waste compost) and one control. The experiment was laid out in completely
randomized design (factorial) with three replications. The studies were undertaken to
investigate the effect of organic amendments on different chemical and
microbiological properties of different soils. Soil sampling was done from each
treatment at an interval of 30, 60, 90 and 120 daysof incubation for determination of
all the parameters. Available macro and micronutrients, exchangeable cations, cation
exchange capacity, water soluble calcium, potassium and microbial count were
increased significantly, whereas exchangeable sodium, water soluble sodium and
water soluble magnesium were having no significant effect while on addition of
amendments. Organic carbon and microbial biomass carbon of different soils
decreased with increase in time interval. Farm yard manure and vermicompost
improved soil properties more effectively compared to city waste compost. The
increase was more pronounced during first two months.