Thumbnail Image

Theses

Browse

20181
Reset filters
Subject: Environmental Science × Author: Meghna × Start date: 1994 × Type: Thesis ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    CARBON SEQUESTRATION POTENTIALOF ORGANICALLY GROWN PADDY-WHEAT CROPPING SYSTEM
    (CSKHPKV, Palampur, 2018-12-18) Meghna; Punam
    A field experiment was conducted during Kharif 2016 and Rabi 2016-17 at Holta, Organic Farm of Department of Organic Agriculture & Natural Farming, CSKHPKV, Palampur to study the carbon sequestration potential of organically grown paddy-wheat cropping system. The experiment consisted of 8 treatments comprising of combinations of four nutrient management practices i.e. organic nutrient management [(Vermicompost (VC) 10t/ha + Jeevamrit (3 drenchings: one before sowing and two after sowing at one month interval)], inorganic nutrient management (recommended NPK), integrated nutrient management (50% VC and 50% recommended NPK) and farmer’s practice (25%VC + 25% recommended NPK) with two conditions i.e. rainfed and irrigated. The experiment was laid out in split plot design with conditions in main plot and nutrient management in sub plot using three replications. Results revealed that growth, grain and straw yield of paddy and wheat, organic carbon sequestered in plant parts, soil moisture, microbial biomass carbon and soil organic carbon were increased with irrigated condition and nutrient management practices. Irrigated condition significantly increased the grain and straw yield of both paddy and wheat over rainfed condition by 32.9 and 41.41 per cent respectively. Among nutrient management treatments, organic nutrient management practice produced 55.41 and 48.1 per cent higher grain yield than inorganic nutrient treatmentin paddy and wheat crops respectively. Under irrigated condition, paddy-wheat cropping system produced significantly highest biomass and sequestered highest carbon. Organic nutrient management resulted in 51.3 and 51.7 per cent higher biomass and sequestered carbon respectively in comparison to inorganic treatment.