Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/82345
Authors: Veena.N.Kalannavar
Advisor: S.S.Angadi
Title: Response of Jatropha curcas to nitrogen, Phosphorus and potassium levels in northern transition zone of Karnataka
Publisher: UAS, Dharwad
Type: Thesis
Agrotags: Agronomy
Abstract: A field experiment was conducted during 2007 at the Main Agricultural Research Station, University of Agricultural Sciences, Dharwad to study the response of Jatropha curcas to nitrogen, phosphorus and potassium levels on growth, yield and quality of Jatropha. Jatropha is a large shrub able to thrive under different soil and climatic conditions and it is an important source of biofuel. The experimental site had medium available nitrogen (305 kg ha- 1), phosphorus (31.3 kg ha-1) and high available potassium (346.6 kg ha-1). There were twenty eight treatment combinations consisting of three levels each of nitrogen (50, 100 and 150 kg N ha-1), phosphorus (100, 150 and 200 kg P2O5 ha-1) and potassium (100, 150 and 200 kg K2O ha-1) and the experiment was laid out in RCBD with three replications. Significantly higher seed yield, oil yield and biodiesel yield of Jatropha was recorded with 100 kg N ha-1 over 50 and 150 kg N ha-1. Among phosphorus levels, significantly higher seed yield, oil yield and biodiesel yield was recorded with 100 kg P2O5 ha-1. Application of 150 kg K2O ha-1 recorded significantly higher seed yield, oil yield and biodiesel yield. The interaction effect of application of 100:100:150 kg N:P2O5:K2O ha-1 recorded significantly higher seed yield (3937.50 kg ha-1), oil yield (1461.28 kg ha-1) and biodiesel yield (1200.46 l ha-1). This is mainly because of the significant influence of combined application of nutrients on growth, physiological and yield attributes. The next treatment in order with respect to yield and quality of Jatropha was N2P3K1 (100:200:100 kg N:P2O5:K2O kg ha-1). Significantly higher total nitrogen (4.438%), phosphorus (2.09%) and potassium (1.68%) content of oil cake was recorded with application of 100:100:150 kg N:P2O5:K2O ha- 1. The net returns (Rs.19,773 ha-1) and B:C ratio (2.69) were significantly higher with the combination of 100:100:150 kg N:P2O5:K2O ha-1. The results obtained indicated that higher growth, physiological, yield and quality attributes were significantly superior and economically beneficial to the farmers with application 100:100:150 kg N:P2O5:K2O ha-1 to Jatropha.
Subject: Agronomy
Theme: Response of Jatropha curcas to nitrogen, Phosphorus and potassium levels in northern transition zone of Karnataka
Research Problem: Response of Jatropha curcas to nitrogen, Phosphorus and potassium levels in northern transition zone of Karnataka
Issue Date: 2008
Appears in Collections:Thesis

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