Browsing by Author "Bhat, N.T."
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Item Alternate uses of arecanut(2007-02-08) Bhat, N.T.Item Coconut and arecanut based high density multispecies cropping systems(2007-02-08) Bavappa, K.V.A.; Kailasam, C.; Khader, K.B.A.; Biddappa, C.C.; Khan, H.H.; Kasthuri Bai, K.V.; Ramadasan, A.; Sundararaju, P.; Bopaiah, B.M.; George V. Thomas; Misra, L.P.; Balasimha, D.; Bhat, N.T.; Shama Bhat, K.High density multispecies cropping models were laid out one each in coconut and arecanut plantations during 1983. Data on various aspects of the system behaviour showed that the yield of coconut and arecanut increased to the extent of 176% and 12S% respectively in the two systems. The possibility of getting additional yields due to cropping system approach was, evident. There was no marked yield difference of the crops in the full, two-third and one-third levels of fertilizers applied though depletion in N and Mg balance was indicated. The air space utilisation was 31% in coconut while it was 63% in the arecanut system. The biomass production of the two systems showed that there was substantial increase in coconut biomass while the biomass of other crops remained more or less the same. In general, there was build-up of P and K nutrients in the systems. Under the arecanut system N also showed increased balance. There was improved microbial activity in the systems. No serious pest and disease management problems were indicated due to the high density cropping system approach. A number of crop varieties and hybrids tolerant/resistant to the nematode pathogen could be identified. The interaction of various, factors for exploiting higher levels of productivity through a system approach and the need for predicting crop choices based on data and crop performance are discussed in the paper.Item Coconut and arecanut based high density multispecies cropping systems(1986-12) Bavappa, K.V.A.; Kailasam, C.; Khader, K.B.A.; Biddappa, C.C.; Khan, N.H.; Kasthuri Bai, K.V.; Ramadasan, A.; Sundararaju, P.; Bopaiah, B.M.; George V. Thomas; Misra, L.P.; Balasimha, D.; Bhat, N.T.; Shama Bhat, K.High density multispecies cropping models were laid out one each in coconut and arecanut plantations during 1983. Data on various aspects of the system behaviour showed that the yield of coconut and arecanut increased to the extent of 176% and 125% respectively in the two systems. The possibility of getting additional yields due to cropping system approach was evident. There was no marked yield difference of the crops in the full, two-third and one-third levels of fertilizers applied though depletion in N and Mg balance was indicated. The air space utilisation was 31% in coconut while it was 63% in the arecanut system. The biomass production of the two systems showed that there was substantial increase in coconut biomass while the biomass of other crops remained more or less the same. In general, there was build-up of P and K nutrients in the systems. Under the arecanut system N also showed increased .balance. There was improved microbial activity in the systems. No serious pest and disease management problems were indicated due to the high density cropping system approach. A number of crop varieties and hybrids tolerant/resistant to the nematode pathogen could be identified. The interaction of various factors for exploiting higher levels of productivity through a system approach and the need for predicting crop choices based on data and crop performance are discussed in the paper.Item Comparative Chemistry and Microbiology of cocoa fermentation in India(2007-02-08) Balasimha, D.; Bhat, N.T.; Bopaiah, B.M.Indian cocoa beans are usually acidic due to defective harvesting, fermentation and drying. An improved processing method was developed to overcome the acidity problem. Microbiological and chemical changes occurring during the processing of cocoa beans have been compared and discussed.Item Crop Management Soils and manures(2007-02-08) Mohapatra, A.R.; Bhat, N.T.Item Effect of continuous application of manures and fertilizers on rhizosphere microflora in arecanut palm(2007-02-08) Bopaiah, B.M.; Bhat, N.T.The rhizosphere microflora of arecanut palm under continuous application of organic manures and inorganic fertilizers was studied. The nutrients applied are 100 g N, 40 g P2Os and 140 g K30/palm/ year in the form of organics and inorganics. The application of organic manure increased the microbial population. The increase in microbial population was observed between the rhizosphere samples collected at 0-30 cm and 30-60 cm depths. The surface cultivation of soil increased the microbial population. Trichoderma sp. and Aspergillus sp. dominated in the rhizosphere of arecanut palm.Item Effect of supplying nutrients through organic manures, inorganic fertilisers and their combination on arecanut crop(2007-02-08) Bhat, N.T.; Mohapatra, A.R.The source of nutrients supplied did not influence plant growth or yield of the crop. The plots that did not receive organic manures from outside had organic carbon in soil around 0.7%. The level of nutrients supplied per palm per year [lOOg N, 40g P2O, and 14Qg K2O) can be considered adequate for the local cultivar of arecamit as indicated by the build up of P, K and organic carbon in the soil and almost uniform levels of available nitrogen in the soil around root zone.Item Evaluation of interrelationship between cation exchange capacity of leaf and root in arecanut, Areca catechu L.(2007-02) Mohapatra, A.R.; Pillai, S.S.; Bhat, N.T.; Murthy, K.N.Item Evaluation of interrelationship between organic carbon and available nitrogen in some soils where arecanut is grown in India(2007-02) Bhat, N.T.; Mohapatra, A.R.The relationship between organic) carbon and nitrogen hydrolysable with alkaline permanganate was examined in a few important soils where arecanut is grown in India. A significant positive correlation was obtained between them only when the soil organic carbon exceeded 0-7 per cent. When soils rich in organic matter were finely ground, their carbon values increased.Item Evaluation of micronutrient status of soils from healthy and yellow leaf disease affected arecanut gardens(2007-02) Mohapatra, A.R.; Bhat, N.T.; Devaraju, C.The major and micronutrient s status of soils of healthy and disease affected areas wete examined to find out whether nutrient imbalance is the probable cause of the yellow leaf disease of arecanut. The available forms of micronutrient s such as boron, zinc, copper and manganese were low in soils both from healthy and yellow leaf disease affected gardens. Exchangeable iron was adequate in the soils. The KCl extractable aluminium contents of soils of diseased tracts were higher than those of disease free areasItem Green manure crops for arecanut gardens(2007-02) Mohapatra, A.R.; Sannamarappa, M.; Brahma, R.N.; Bhat, N.T.Item Growth Characters and Mineral Nutrient Composition of Arecanut Seedlings as Related to their Cation Exchange Capacity(1973) Mohapatra, A.R.; Pillai, S.S.; Bhat, N.T.; Murthy, K.N.Root cation exchange capacity of some Areca cultivars at seedling stage was measured and its relationship with the morphological characters of plant and nutrier. composition of leaf as well as rootwas evaluated. High CEC encouraged more concentration of phosphorus in plant tissue. The growth characters of seedlings were not significantly related to the root CEC. Although the ratio of monovalent to divalent ions showed certain trend with root CEC which was in accordance with th Donnans principle. the CEC was not related to the cation composition of leaf. Thus, the applicability cf CEC cf Areca roots as one of tbe indices for the sdection of seedlings in the nursery appear, to be unreliable.Item Growth characters and mineral nutrient composition of arecanut seedlings as related to their cation exchange capacity(2007) Mohapatra, A.R.; Pillai, S.S.; Bhat, N.T.; Murthy, K.N.Root cation exchange capacity of some Areca cuhivars at seedling stage was measured and its relationship with the morphological characters of plant and nutrient composition of leaf as well as root was evaluated. High CEC encouraged more concentration of phosphorus in plant tissue. The growth characters of seedlings were not significantly related to the root CEC. Although the ratio of monovalent to divalent ions showed certain treed with roct CEC which was in accordance with the Donnan s principle, the CEC was not related to the cation composition of leaf. Thus, the applicability cf CEC cf Areca roots as one of the indices for the selection of seedlings in the nursery appears to be unreliableItem Increased Mobility of Phosphate in Laterite Soil with the Addition of Organic Matter(2007-02) Bhat, N.T.; Mohapatra, A.R.In laterite soils, applied water soluble P compounds get converted to sparingly soluble compounds. Application of organic matter and increasing soil organic matter reduce this type of conversion or make these compounds more soluble, thus facilitating deeper movement of phosphorus in soil.Item Note on the comparison of some methods of organic carbon estimation in soils(2007-02) Mohapatra, A.R.; Bhat, N.T.; Devaraju, C.Item Note on the protein content of some varieties of cashewnut (Anacardium occidentale L.)(2007-02) Mohapatra, A.R.; Bhat, N.T.; Murthy, K.N.Item Note on the protein content of some varieties of cashewnut (Anacardium occidentale L.)(1972) Mohapatra, A.R.; Bhat, N.T.; Murthy, K.N.Item Principles and Practices of Fertilizer Use in Arecanut(2007-02) Mohapatra, A.R.; Bhat, N.T.; Abdul Khader, K.B.Item A Rapid Method for Determination of Tissue Potassium in Arecanut(1971-10) Mohapatra, A.R.; Bhat, N.T.; Aboobaker, V.O.Item A Rapid Method for Determination of Tissue Potassium in Arecanut(1971) Mohapatra, A.R.; Aboobaker, V.O.; Bhat, N.T.The efficiency of different extractants which included cold water, hot water, salt solutions, chelate and dilute acid to extract potassium from areca leaf was compared with the wet oxidation procedure. Amongst the various extractants employed, hot water .gave the best result. Hot water also eliminates the possibility of contamination from impure chemicals. The method is rapid, handy, accurate and inexpensive.