Browsing by Author "Mohapatra, A.R."
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Item Crop Management Soils and manures(2007-02-08) Mohapatra, A.R.; Bhat, N.T.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 Effects of manuring on the nutrients contents of soil and leaf in arecanut(2007-02-08) Mohapatra, A.R.Fertility status of surface soils and nutrients content of arecanut leaf from stations, where the NPK experiments conducted, were evaluated. Organic C was optimum in soils at Vittal and Peechi due to green leaf application. Bray P-1, P was adequate in soils at Vittal, Peechi, Mohitnagar andKahikuchi, because of P fertilization. Exchangeable K2O was sufficient in soils at Hirehalli. Peechi, Mohitnagar and Kahikuchi as a result of addition of muriate of potash. Application of fertilizer-N increased acidity and decreased exchangeable K and Ca content of soils at Vittal, Peechi, Mohitnagar and Kahikuchi. N content of leaf appeared to be rather low, whereas K was high. Leaf-P was low in samples from Vittal and Hirehalli but satisfactory at Peechi, Mohitnagar and Kahikuchi. Ca content of leaf was above the average value in samples from all the centres except that of Peechi.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 Nutrient profile in an arecanut-cacao system on a laterite soil(2007-02) Manikandan, P.; Biddappa, C.C.; Mohapatra, A.R.; Hameed Khan, H.; Joshi, O.P.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.Item Scientific Management Practices for Arecanut Soils in India(1973) Bhat, N.T.; Mohapatra, A.R.Item Soil Fertility Research In Arecanut: A Review(1977) Mohapatra, A.R.The research carried out so far on soil fertility of arecanut is reviewed. Priority areas are discussed. Better management of plantations with the available local resources is suggested.Item Soil Research On Arecanut In The Last Decade(1990) Mohapatra, A.R.; Bhat, N.T.