Browsing by Author "Nagwekar, D.D."
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Item Banawali types of coconut (Cocos nucifera L.) of the Konkan Region of Maharashtra State(Indian Coconut Journal, 2003-11) Nagwekar, D.D.; Sawant, V.S.; Desai, V.S.; Mahadik, M.V.; Khan, H.H.; Joshi, G.D.; Jambhale, N.D.Item Coconut variety Kalpa Pratibha(2009-05) Niral, V.; Augustine Jerard, B.; Samsudeen, K.; Arunachalam, V.; Kumaran, P.M.; Ratnambal, M.J.; Rao, E.V.V.B.; Pillai, R.V.; Satyabalan, K.; Nampoothiri, K.U.K.; Nair, M.K.; Bavappa, K.V.A.; Nair, R.V.; George V. Thomas; Reddy, V.S.K.; Goutham, B.; Kalpana, M.; Raghava Rao, D.V.; Nageswarao, M.B.; Srinivasulu, B.; Vaithilingam, R.; Natarajan, C.; Kumar, M.; Meenakshi Ganesan, N.; Nagwekar, D.D.; Arulraj, S.;Item Effect of integrated use of manures and fertilizers on coconut yield and changes in available nutrient content and N, P and K fractions of inceptisols of Konkan region(Indian Society for Plantation Crops, 2008) Talashilkar, S.C.; Nagwekar, D.D.; Akhave, S.R.; Dabke, D.J.A long-term field experiment was conducted at Regional Coconut Research Center, Bhatye, Dist. Ratnagiri to study the effect of integrated nutrient management on the changes in available nutrient status and fractions of nitrogen, phosphorus and potassium of the coastal lateritic soils and leaf nutrient content of coconut. The six treatments comprising T1: control, T2: recommended dose of fertilizers (RDF); T3: 100% N through vermicompost; T4: 50% N through vermicompost + 50% RDF; T5 : neem cake + bone meal + ash and T6: poultry manure were replicated four times in Randomized Block Design. The highest mean nut yield of four years, viz. 2001-02 to 2004-05 was recorded in the treatment receiving recommended dose of fertilizers (98 nuts/palm/year) followed by the treatment receiving 100% N through vermicompost (94 nuts/palm/year) and 50% N through vermincompost + 50% RDF (82 nuts/ palm/year). Available nitrogen status of soil was found to be significantly improved due to application of vermicompost and 50% N through vermicompost + 50% RDF. The significant increase in available phosphorus and potassium status of soil recorded in 50% N through vermicompost + 50% RDF treatment was at par with vermicompost treatment. Maximum exchangeable NH4-N, NO3-N and hydrolysable N were maintained in the treatment receiving 50% N through vermicompost + 50% RDF followed by vermicompost treatment. The differences in Al-P content among the treatments receiving neem cake + bone meal + ash, 50% N through vermicompost + 50% RDF and vermicompost were non significant. As regards to Fe-P content, the treatment receiving neem cake + bone meal + ash and 50% N through vermicompost + 50% RDF were at par with each other and significantly superior over poultry manure, RDF and control. The treatment receiving neem cake + bone meal + ash maintained significantly higher water soluble and exchangeable K content over the treatments receiving poultry manure, RDF and control. Vermicompost is found to be promising source for improving leaf nutrient content. Thus, application of organic manures either alone or in combination with fertilizers is found to be beneficial for improving nutrient availability resulting into enhancement in nutrient uptake by coconut.Item Evaluation of Coconut Germplasm in the Konkan Region of Maharashtra State(2002-03) Nagwekar, D.D.; Sawant, V.S.; Joshi, G.D.; Khan, H.H.Fifteen genotypes of coconut planted in 1958 were evaluated for yield attributes under irrigated condition at the Regional Coconut Research Station, Bhatye, Rantagiri (M.S.) representing sandy soil of Konkan region of Maharashtra State. So far one variety viz. Pratap has been released and two varieties viz. Laccadive Ordinary and Philippines Ordinary and one hybrid T x D have been recommended for cultivation in the Konkan region of Maharashtra State. The performance of these varieties and hybrids has been evaluated in this paper.Item In vitro retrieval via embryo rescue of 'Mohachao Narel', a sweet endosperm coconut from Maharashtra(2017) Anitha Karun; Sajini, K.K.; Rajesh, M.K.; Muralikrishna, K.S.; Samsudeen, K.; Ajith Kumar, P.; Nagwekar, D.D.Item Lakhi Baug for realizing maximum income from coconut(2014-10) Nagwekar, D.D.; Haldankar, P.M.; Jadhav, B.B.; Arulraj, S.; Maheshwarappa, H.P.Item Performance of medicinal and aromatic plants as intercrops in coconut plantations in Konkan region of Maharashtra(2013-12) Nagwekar, D.D.; Sawant, V.S.; Haldankar, P.M.; Jadhav, B.B.; Arulraj, S.; Maheshwarappa, H.P.A field experiment was conducted at Regional Coconut Research Station, Bhatye, Ratnagiri (AICRP on Palms) during 2006-2011 to develop appropriate cropping system with medicinal and aromatic plants as intercrops compatible with coconut. The experiment consisted ‘shatavari’ (Asparagus racemosus), ‘adulasa’ (Adhatoda vasica), arrowroot (Maranta arundincea), lemon grass (Cymbopogum citratus) and citronella (Cymbopogum winterianus) replicated four times in randomized block design. The yield of different medicinal/aromatic plants was maximum in lemon grass (31 t ha-1) followed by citronella (22 t ha-1), arrowroot (16 t ha-1), adulsa (2.1 t ha-1) and shatavari (0.8 t ha-1). The yield of intercrops in terms of coconut equivalent yield was higher with lemongrass (7750 nuts ha-1) followed by arrowroot (6000 nuts ha-1), adulasa (4725 nuts ha-1), citronella (4125 nuts ha-1) and shatavari (3500 nuts ha-1). The yield of coconut increased from 12 to 21 per cent after planting the intercrops. The net return was maximum in coconut + lemongrass (Rs. 96,200/ - per ha) followed by coconut + arrowroot (Rs. 93,200/- per ha), coconut + shatavari (Rs. 83,300/- per ha), coconut + adulasa (Rs. 78,300/- per ha) and coconut + citronella (Rs. 73,800/- per ha). Further, it was observed that shatavarin and saponins in shatavari, alkaloid in adulasa, citranol in citronella and sugar in arrowroot were higher with intercropping whereas citral in lemon grass slightly reduced with intercropping. Considering the performance of different medicinal crops as intercrop and market demand, arrowroot, lemongrass, adulasa, citronella and shatavari have been recommended as intercrops in coconut plantation for Konkan region of Maharashtra.Item Yield and Nutrient Status of Coconut as Influenced by Different Sources of Nutrients in Sandy Soil of Konkan Region of Maharashtra(2010) Nagwekar, D.D.; Desai, V.S.; Desai, V.S.; Talashikar, S.C.; Haldandar, P.M.; Rangwala, A.D.; Arulraj, S.; Jadhav, B.B.