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EFFECT OF DAIRY FACTORY EFFLUENT ON BIO-CHEMICAL PROPERTIES OF SOIL WITH SPECIAL REFERENCE TO SOIL FERTILITY AND PLANT NUTRITION

KrishiKosh

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Title EFFECT OF DAIRY FACTORY EFFLUENT ON BIO-CHEMICAL PROPERTIES OF SOIL WITH SPECIAL REFERENCE TO SOIL FERTILITY AND PLANT NUTRITION
 
Creator REDDY SASHI KALA, GUMMI
 
Contributor SREENIVASULU REDDY, KOTU
 
Subject crops, biological development, harvesting, liquid wastes, concentrates, enzymes, economic systems, planting, acidity, nutrients
 
Description The present investigation involves characterization of Dairy Factory
Effluent (DFE) and a pot culture experiment to study the effect of Dairy
factory effluent on two crops (pearlmillet and greengram). The pot culture
experiment was conducted during Rabi, 2009 at S.V.Agricultural college,
Tirupati (Andhra Pradesh).
The characterization of Dairy factory effluent indicated that it has a
colour of creamish white with a foul smell containing higher amount of total
dissolved solids. It was slightly alkaline in reaction (pH 7.4) and high in
soluble salt content (EC 9.28 dSm-1). Further, considerable amount of N, P,
K, S, Fe, Mn, Zn and Cu were observed in Dairy factory effluent. It also
contained sufficient amount of microbial load(bacteria and fungi) and
enzymes (dehydrogenase, urease, acid phosphatase ,alkaline phosphatase and
arylsulfatase).
Sandy clay loam soil was used as experimental soil to know the impact
of different levels of Dairy factory effluent application on soil properties and
nutrient concentration and uptake of pearlmillet and greengram.
Dairy factory effluent application did not show any significant effect on
soil pH and EC but showed significant effect on available N, P, K, S, Fe, Mn,
Zn and Cu. Further, the availability of N, P, K, S, Fe, Mn, Zn and
Cu was maximum in the soil treated with Dairy factory effluent
@ 3.0 lakh L ha-1followed by Dairy factory effluent @ 1.5 lakh L ha-1.
Microbial load (bacteria, fungi and actinomycetes)was significantly
higher due to Dairy factory effluent application up to 3.0 lakh L ha-1 whereas
soil enzymes activity (dehydrogenase, urease, acid phosphatase ,alkaline
phosphatase and arylsulfatase)were increased due to Dairy factory effluent
application over control.
Dairy factory effluent application significantly increased the
concentration and uptake of major (N, P, K and S) micronutrients
(Fe, Mn, Zn, and Cu) and ascorbic acid, nitrate reductase activity and total
chlorophyll content in pearlmillet and greengram crops. However, the
concentration and uptake of N and P were significantly higher in greengram
than in pearlmillet whereas the concentration and uptake of K and S were
significantly higher in pearlmillet as compared to greengram. The dry matter
production and yield were significantly higher due to Dairy factory effluent
application as compared to control in both the crops.
The soil enzymes showed positive and significant correlation with
microbial load. Similarly, all the enzymes exhibited positive correlation with
soil nutrients. The ascorbic acid concentration, nitrate reductase activity and
yield were positively and significantly correlated with soil nutrients
irrespective of crops under study.
The outcome of the present investigation clearly indicated that the Dairy
factory effluent acted as a source of plant nutrients to improve soil fertility as
well as yield of crops, when applied @ 3.0 lakh L ha-1 one month before
sowing of crops along with FYM @ 5.0 tonnes ha-1 which enhanced
mineralization process.
 
Date 2016-06-24T13:34:39Z
2016-06-24T13:34:39Z
2010
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/67929
 
Language en
 
Relation D8708;
 
Format application/pdf
 
Publisher ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY