Browsing by Author "Dhanapal, R."

Now showing 1 - 20 of 69
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    Agro-management Practices for Sustainable Coconut Production
    (2018) George V. Thomas; Krishnakumar, V.; Dhanapal, R.; Srinivasa Reddy, D.V.
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    Agro-techniques for higher coconut productivity under coastal sandy soil
    (2012) Subramanian, P.; Dhanapal, R.; Palaniswami, C.; Alka Gupta; Maheswarappa, H.P.
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    Agro-techniques for Higher Coconut Productivity Under Coastal Sandy Soil
    (2011-05) Subramanian, P.; Dhanapal, R.; Palaniswami, C.; Alka Gupta; Maheswarappa, H.P.
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    Coastal sandy soil management through intercropping/alley cropping of glyricidia in the coconut garden
    (2006) Subramanian, P.; Dhanapal, R.; Palaniswami, C.; Maheswarappa, H.P.
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    COCONUT ARECANUT MIXED CROPPING
    (2000) Dhanapal, R.; Subramanian, P.; Meheshwarappa, H.P.
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    Coconut arecanut mixed cropping
    (2000) Dhanapal, R.; Subramanian, P.; Maheswarappa, H.P.
    The experience based on the survey conducted in the coconut gardens of Kasaragod district during October and November 1999 is discussed in this paper. In general coconut and arecanut mixed cropping is not recommended due to common disease, pest and morphological features due to which various intensity of competition occurs in different periods of crop growth. Planting arecanut in the interspace of coconut when coconut age is five to eight years leads to lanky palms, delayed flowering and 60-70% reduction from expected yield. The technical flaws in the existing plantations and ways to overcome the same are discussed in detail.
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    Coconut based mixed farming systems and its economic advantages
    (Coconut Development Board, 2000-07) Maheswarappa, H.P.; Sairam, C.V.; Dhanapal, R.; Vidhan Singh, T.; Hegde, M.R.
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    Coconut community in India -a profile
    (CPCRI, 2001-09) Arulraj, S.; Rajagopal, V.; Sairam, C.V.; Thamban, C.; Anithakumari, P.; Dhanapal, R.; Bosco, S.J.D.; Subaharan, K.; Naresh Kumar, S.; George V. Thomas; Vinayaka Hegde; Kumaran, P.M.; Parthasarathy, V.A.
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    Coconut cultivation Practices
    (2007) Dhanapal, R.; Thamban, C.
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    Coconut Cultivation Practices
    (1999-07) Dhanapal, R.
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    Coconut leaf vermiwash: a bio-liquid from coconut leaf vermicompost for improving the crop production capacities of soil
    (2010) Murali Gopal; Alka Gupta; Palaniswami, C.; Dhanapal, R.; George V. Thomas
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    Coir pith - Its use in homestead poultry farm
    (1999) Maheswarappa, H.P.; Dhanapal, R.; Biddappa, C.C.; George V. Thomas
    A trial was conducted at CPCRI, Kasaragod to study the feasibility of using coir pith as bedding material in homestead poultry unit, and its nubitive value as rnanureatlater stages. The results revealed that, coir pith can be used as a bedding material without affecting poultry birds in deep litter system After 80 days, the coir pith was enriched withpoultry droppings and its chemicalproperties like lignin and cellulose contents were decreased to 12.2 and 15.0 per cent respectively from the orginal values Of34.8 and 28.6 per cent respectively. The C: N ratio came down to 10:1 from the intial value of 93:1 and was richer vn major and micro-nutrients compared to raw coir pith The microbialpopulation was higher in coir pith enriched withpoultry dropings compared to raw coir pith.
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    Coir pith - Its use in poultry farm
    (2007-02-08) Maheswarappa, H.P.; Dhanapal, R.; Biddappa, C.C.; George V. Thomas
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    Comparative efficiency of different systems of irrigation in coconut
    (Central Plantation Crops Research Institute Kasaragod - 671 124,Kerala, 2000) Dhanapal, R.
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    Design of Data Marts for Plantation Crops
    (2002) Ravikumar, N.; Muralidharan, K.; Sairam, C.V.; Palaniswami, C.; Dhanapal, R.; Arulraj, S.; Anil Rai; Vipin Dubey; Chaturvedi, K.K.
    Plantation crops occupy a significant position in the agricultural sector and play a significant role in the. Indian economy. To apply the Information Technology tools, it is required to link all the relevant data sets in to a single system. To achieve this objective, the Indian Council of Agricultural Research (ICAR) has launched a mission mode project entitled Integrated National Agricultural Resource Information System (INARIS) involving 14 research institutes. The efficiency of the databases at various centres could be enhanced by providing solutions to customer queries in an integrated manner, for which data marts are to be developed. In this papeG basic concepts of designing of the data marts are applied to the plantation crop sector. Three data marts viz., statistics, agro-techniques and research were identified in the field of plantation crops as a part of Centralized data warehousing of national agricultural resources. Different aspects of data mart design were delineated. The detail and summary levels of data in the data mart were documented. Developing data marts will help to evolve decision support tools in respective area of specialization without much cost involved. Finally, the data warehouse would be built-up by joining the data marts.
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    Drip fertigation to increase the productivity of coconut
    (2007-02-08) Dhanapal, R.; Subramanian, P.; Mathew, A.C.; Palaniswami, C.
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    Economic analysis of coconut - based mixed farming systems
    (2007-02-08) Maheswarappa, H.P.; Sairam, C.V.; Dhanapal, R.; Vidhan Singh, T.; Hegde, M.R.
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    Effect of fertilizer application through micro-irrigation technique on nutrient availability and coconut productivity
    (2012-12) Subramanian, P.; Dhanapal, R.; Mathew, A.C.; Palaniswami, C.; Upadhyaya, A.K.; Naresh Kumar, S.; Reddy, D.V.S.
    An investigation was conducted to study the response of drip fertigation in West Coast Tall variety of coconut for growth, nutrition, physiological parameters and yield at Central Plantation Crops Research Institute, Kasaragod during 1996-2008. The application of fertilizers either through drip fertigation or soil application resulted in significantly higher trunk height and girth at base than control (no fertilizer). However, no significant difference was observed among different dose of fertigation and soil application treatments. The number of leaves on the crown was significantly higher(32.6) under 75 per cent of NPK through drip fertigation which was on par with 50 per cent and 100 per cent NPK through drip fertigation and 100 per cent NPK through soil application and significantly differed from 25 per cent NPK through drip fertigation and control. Fertigation to coconut resulted in a marked increase in available nitrogen, phosphorus and potassium status in soil. Different levels of fertigation did influence significantly physiological parameters like net photosynthesis (PN), transpiration (E) and stomatal conductance (gs). The treatment, 100 per cent NPK applied through fertigation resulted significantly higher PN, E and gs and which was on par with 50 per cent and 75 per cent through drip fertigation and significantly differed from 100 per cent NPK though soil application and control. Among the fertigation levels, coconut yield was significantly higher in 100 per cent NPK fertigation (131nuts/palm/year) which was on par with 75 and 50 per cent NPK applied through drip irrigation and significantly differed from 100 per cent NPK through soil application, 25 per cent NPK through fertigation and control. The study indicated that adoption of fertigation increases the productivity with 50 per cent saving of chemical fertilizers which ensure the higher efficiency of nutrients in crop production.
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    Effect of levels and methods of fertilization on growth and recovery of vigorous seedlings in WCT coconut nursery
    (1998) Srinivasa Reddy, D.V.; Dhanapal, R.; Palaniswami, C.; Maheswarappa, H.P.
    The effect of graded levels and methods of fertilizer application on growth characters and recovery of vigorous seedlings in WCT coconut nursery was studied. The results of two year experiments revealed that growth characters did not differ significantly due to fertilization. However, most of the parameters particularly collar girth and leaf area/seedling were relatively better with fertilizer applied treatments compared to no-fertilizer. Drymatter production above ground and number of roots/seedling were significantly superior in T-8 (FYM 25 t/ha + N and K-160 kg each/ha as soil application) and T-7 (FYM 25 t/ha + N and K-80 kg each/ha as soil application) treatments in both the years. Although recovery per cent of vigorous seedlings from total germinated nuts was non significant due to various treatments, higher mean recovery of 80% was obtained with T-8 followed by 76.6% in T-7 treatment than 66.4% in control. Inspite of higher cost of cultivation at Rs 3,60,357/ha for T-8 and Rs 3,58,918/ha of nursery for T-7 treatments, the cost of production per seedling was worked out as Rs 9.76 and Rs 10.17, respectively for T-8 and T-7 treatments as compared to Rs 11.07/seedling in unfertilized treatment.