Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/66903
Authors: SRINIVAS, T
Advisor: JOSEPH, B
Title: INTEGRATED NUTRIENT MANAGEMENT IN Hardwickia binata + CASTOR AGRI – SILVICULTURE SYSTEM
Publisher: ACHARYA N. G. RANGA AGRICULTURAL UNIVERSITY
Language: en
Type: Thesis
Series/Report no.: D9076;
Agrotags: integrated pest management, cotton, costs, productivity, pesticides, manpower, crops, economics, tillage equipment, livestock
Abstract: The field experiment entitled “Integrated nutrient management in Hardwickia binata + castor Agri-silviculture system” was conducted at Students’ Farm, College of Agriculture, Rajendranagar, Hyderabad during kharif, 2009. The study site is tree plantation area which was characterized by semi-arid climate. The soil was red sandy loam with medium organic carbon (0.67%), available nitrogen (336 kg ha-1) and available potassium (267 kg ha-1) and high in available phosphorus (32 kg ha-1) contents. The experiment was laid out in split plot design with three replications in 16 year old Hardwickia plantation. The treatments comprised of three cropping systems as main plot treatments [ intercropping of castor in pollarded Hardwickia (M1), intercropping of castor in unpollarded Hardwickia (M2) and sole crop of castor (M3)] and four integrated nutrient management practices as subplot treatments [ recommended dose of nitrogen (RDN)(60 kg N ha-1) (S1), 75% recommended dose of nitrogen + FYM (5 t ha-1) (S2), 75% recommended dose of nitrogen + FYM (5 t ha-1) + leaf mulch (2 t ha-1) (S3) and 75% of recommended dose of nitrogen + FYM (5 t ha-1) + deep furrow (30 cm) (S4) ]. The test variety of castor was Haritha (PCS-124). The results indicated that among the different cropping systems the growth parameters of castor viz., plant height, leaf area per plant, leaf area index, dry matter production and crop growth rate were significantly higher with sole crop of castor followed by intercropped of castor in pollarded Hardwickia. The yield attributing characters of castor viz., length of spike, number of spikes per plant, number of capsules per spike and test weight, seed and stalk yields, oil content, N, P, K uptake were significantly more with sole crop of castor followed by intercropped castor in pollarded Hardwickia. The total gross and net returns were found high under intercropping situation i.e intercropping of castor in pollarded Hardwickia plantation. As regards to the influencing of different INM practices on the performance of castor, it was found that application of RDN @ 60 kg N ha-1 (S1) recorded the highest seed yield of 535.7 kg ha-1 and was found significantly superior to the three INM treatments. Among the INM treatments 75% recommended dose of nitrogen + FYM (5 t ha-1) + leaf mulch (2 t ha-1) (S3) gave maximum seed yield (489.4 kg ha-1) followed by 75% of recommended dose of nitrogen + FYM (5 t ha-1) + deep furrow (30 cm) (S4) with 475.5 kg ha-1, where as the minimum yield of 452.9 kg ha-1 was found with 75% recommended dose of nitrogen + FYM (5 t ha-1) (S2). The interaction between cropping systems and INM treatments was significant. The highest seed yield of 709.5 kg ha-1 was realized by sole castor crop with the application of RDN @ 60 kg N ha-1. Next to this, intercropping of castor in pollarded Hardwickia with the application of RDN @ 60 kg N ha-1 was found superior to the other intercropping system. The total monetary returns from the system (Tree+Crop) were maximum under intercropping of castor in pollarded Hardwickia when compared to other cropping systems including sole castor. Although the sole castor performance was found superior to intercropped castor, but from the monetary advantage point of view, intercropping castor in pollarded Hardwickia with chemical fertilization i.e. RDN @ 60 kg N ha-1 was beneficial and gave the highest B:C ratio. The influence of INM practices was not observed in the present one year experiment.
Issue Date: 2011
Appears in Collections:Theses

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