Comparative Effectiveness of Farm Yard Manure and Vermicompost Under Prescription Based Fertilizer Application In Maize-Wheat System in an Acid Alfisol

Singh, Vijay (2014) Comparative Effectiveness of Farm Yard Manure and Vermicompost Under Prescription Based Fertilizer Application In Maize-Wheat System in an Acid Alfisol. PhD thesis thesis, CSKHPKV Palampur.

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Abstract

The present investigation was carried out to study the comparative effectiveness of farm yard manure and vermicompost under prescription based fertilizer application in maize-wheat system in an acid Alfisol at experimental farm of Department of Soil Science, College of Agriculture, CSK HPKV, Palampur. There were nine treatments which were replicated thrice in a randomized block design. The treatments were control, soil test based, farmers' practice, 100% NPK, target yield (non-IPNS), target yield with 2.5t and 5t FYM ha-1 with 2.5t and 5t vermicompost ha-1. The target yield for maize and wheat was 40 q and 35 q ha-1, respectively. The experiment was conducted on maize and wheat for two years i.e. kharif 2011 to rabi 2012-13. The soil of experimental farm was silty clay loam in texture, acidic in reaction (pH 5.1), medium in organic carbon (7.8 g kg-1) with 208, 26.8 and 214 kg ha-1 of available N, P and K, respectively. The micronutrient cations viz. Fe, Mn, Zn and Cu were 21.2, 0.83, 0.99 and 16.9 mg kg-1. Surface (0-0.15 m) and sub-surface (0.15-0.30 m) soil samples taken before the sowing and after the harvest of each crop were analysed for pH, organic carbon (OC), cation exchange capacity (CEC), available N, P, K, S, exchangeable Ca, Mg and micronutrient cations viz. Fe, Zn, Cu, Mn. Bulk density, particle density, water holding capacity, water stable aggregates, microbial biomass carbon, urease and phosphatase activity were determined before the sowing and after harvest of last crop. Yield of maize and wheat was recorded. Plant samples of both the crops were analyzed for total N, P, K, Ca, Mg, S and micronutrient cations and their uptakes were worked out. The study revealed that water holding capacity and water stable aggregates increased in targeted yield treatments with integrated plant nutrient supply (IPNS) as compared to their non-IPNS counterparts. However, the effect of IPNS treatments as compared to non-IPNS was non significant in case of bulk density and particle density. Soil pH was not affected significantly but OC and CEC improved in targeted yield with IPNS than rest of the treatments in both surface and sub-surface soil samples. The status of available N, P, K and S was recorded highest in treatment where 5t vermicompost ha-1 with targeted yield was applied. Exchangeable Ca, Mg and DTPA extractable micronutrient cations viz. Fe, Zn, Cu, Mn increased under prescription based fertilizer application with IPNS as compared to non-IPNS in both surface and sub-surface soil samples. Microbial biomass carbon, urease activity and phosphatase activity was recorded highest in the treatment comprising of fertilizer application based on targeted yield with 5t vermicompost ha-1. Highest yield of both the crops was recorded in treatment where 5t vermicompost ha-1 was applied with targeted yield concept and uptake of primary (N, P and K), secondary (Ca, Mg and S) and micronutrient cations (Fe, Zn, Cu and Mn) were recorded higher in targeted yield treatments of IPNS as compared to rest of the treatments. In maize, the highest net returns were recorded in the treatment with targeted yield (non-IPNS) followed by targeted yield with 2.5 t FYM ha-1 and lowest in farmers' practice whereas, in wheat the highest net returns were recorded in the treatment with targeted yield (non-IPNS) followed by 2.5t FYM ha-1 with targeted yield treatment and lowest in farmers' practice. In maize, output input ratio was highest (2.6) recorded in targeted yield treatment with non-IPNS whereas, in wheat it was highest in soil test base (3.2). All the physical, chemical and biological properties were positively correlated with grain and straw yield of maize and wheat except bulk density and particle density.

Item Type: Thesis (PhD thesis)
Subjects: 600 Technology (Applied Science) > 633 Field & Plantation Crops > 633.1 Cereals > 633.18 Rice
Divisions: CSKHPKV Palampur > Department of Soil Science
Depositing User: CSKHPKV Palampur
Date Deposited: 29 Jun 2015 06:36
Last Modified: 29 Jun 2015 06:38
URI: http://hillagricrepository.co.in/id/eprint/844

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