Eco-physiological evaluation of pigeonpea [Cajanus cajan (L.) Millspaugh] - greengram [Vigna radiata (L.) Wilczek] intercropping system under rainfed condition

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dc.contributor.advisorDinesh Kumar Sharma
dc.contributor.authorVarun Vishwasrao Kaje
dc.date.accessioned2017-06-16T06:49:33Z
dc.date.available2017-06-16T06:49:33Z
dc.date.issued2014
dc.descriptionT-9083en_US
dc.description.abstractA field experiment was conducted during kharif season of 2013 at Experimental Farm of the Indian Agricultural Research Institute, New Delhi. The experiment was laid out in factorial RBD with three replications. Treatment consist of three main plot as cropping systems - Sole pigeonpea, Pigeonpea + Green gram (1:1) and Pigeonpea + Green gram (1:2) with three sub-plot as control, hydrogel and mulching having nine treatment combinations to ascertain effect of cropping system and moisture conservation practices on crop growth, yield and yield attributes, microbial growth, crop physiological parameters, nutrient content, soil moisture studies and economics of pigeon pea and green gram under rainfed conditions. The cropping systems failed to cause any significant variation in growth attributes of pigeonpea and green gram. Similar result found in case of yield and yield attributes in both crops except no. of pod/plant found to be significant in pigeonpea. Data pertaining to growth attributes of pigeonpea and green gram such as plant height (cm), LAI were positively influenced by moisture conservation practices except that no. of branches/plant. Among the moisture conservation practices, mulching increased plant height and LAI by 8.2% and 11.4% over control whereas the hydrogel remains on par with control. In case of green gram, cropping systems showed non-significant effect on plant height and LAI whereas moisture conservation practices i.e. mulching had significantly increased plant height and LAI by 24.2% and 10.8% over control. The cropping system had no effect on uptake of N, P, K and S but positively influenced by moisture conservation practices in pigeonpea crop. Among the different moisture conservation practices mulching significantly increased N, P, K and S uptake in seed (43.4%, 44.3%, 44.2% and 43.9% respectively) and stalk (31.8%, 34.2%, 32.5% and 33.8% respectively) over control which was followed by hydrogel. Among moisture conservation practices mulching gave significantly higher net photosynthetic rate as well as instantaneous water use efficiency over control under both pigeonpea and green gram. Bacterial and fungal population increased in mulch treatment by 28.8% and 32.4% respectively over control. Among the moisture conservation practices, mulching recorded significantly higher soil moisture percentage as compared to hydrogel and control. Among the moisture conservation practices mulching gave higher pigeonpea 100 yield i.e. seed yield (5.48 q ha-1 ), stalk yield (20.26 q ha-1 ) and biological yield (25.74 q ha-1 ) which was followed by hydrogel whereas green gram yield under mulching results in higher seed yield (4.12 q ha-1 ) Stover yield (12.09 q ha-1 ) as compared to control seed yield (3.53 q ha-1 ) stalk yield (10.84 q ha-1 ) and hydrogel seed yield (3.70 q ha-1 ) stalk yield (10.57 q ha-1 ). Mulching treatments provided a seed yield advantage of 41.9% and 14.3% in pigeonpea and green gram respectively compared to control. Pigeonpea + green gram intercropping system fetched higher net returns (Rs. 24289) as well as B: C ratio (2.32) over sole pigeonpea due to more combined yield. Similarly moisture conservation practices brought about considerable variation in net return and B: C ratio in the experiment. Maximum net returns (Rs. 21492) and B: C ratio (2.06) was recorded with mulch over control B: C ratio (1.87) and net returns (Rs. 13355)en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810020820
dc.keywordsEco-physiological evaluation of pigeonpea [Cajanus cajan (L.) Millspaugh] - greengram [Vigna radiata (L.) Wilczek] intercropping system under rainfed conditionen_US
dc.language.isoenen_US
dc.publisherCENTRE FOR ENVIRONMENT SCIENCE ANDCLIMATE RESILIENT AGRICULTURE INDIAN AGRICULTURAL RESEARCH INSTITUTE NEW DELHIen_US
dc.subEnvironmental Scienceen_US
dc.subjectnullen_US
dc.themeEco-physiological evaluation of pigeonpea [Cajanus cajan (L.) Millspaugh] - greengram [Vigna radiata (L.) Wilczek] intercropping system under rainfed conditionen_US
dc.these.typeM.Scen_US
dc.titleEco-physiological evaluation of pigeonpea [Cajanus cajan (L.) Millspaugh] - greengram [Vigna radiata (L.) Wilczek] intercropping system under rainfed conditionen_US
dc.typeThesisen_US
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