Browsing by Author "Srinivasa Reddy, D.V."
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Item Agro-management Practices for Sustainable Coconut Production(2018) George V. Thomas; Krishnakumar, V.; Dhanapal, R.; Srinivasa Reddy, D.V.Item Agronomic techniques for production of vigorous seedlings of WCT coconut(2007-02-08) Srinivasa Reddy, D.V.An experiment was conducted at CPCRI, Kasaragod for two consecutive years (1996-1998) to manipulate method of sowing and media for production of vigorous seedlings in WCT coconut. The study indicated that, sowing in potting mixture either in polybag or cement tank led to production of more vigorous seedlings which have early germination and higher dry matter production/seedling. The number of roots and their dry weight/seedling were significantly higher in plants sown in polybag irrespective of growing media. The mean recovery of vigorous seedlings indicated higher recovery in polybag with potting mixture and lowest in conventional field nursery. The cost of production for 100 seednuts ranged from Rs.740 in conventional method to Rs. 1,688 in polybag with potting mixture. Though, the cost of production was highcr in polybag treatment, the cost of production/seedling was relatively less due to higher recovery of vigorous seedlings. The advantages of polybag seedlings in reducing field transplanting shock and early flowering and nut bearing, sufficiently compensates for higher production cost at later stage. Production of seedlings in polybag with potting mixture could be preferred over conventional nurseryItem Cash flow analysis of coconut based high density multi-species cropping system – A case study(2007-02-08) Sairam, C.V.; Gopalasundaram, P.; Srinivasa Reddy, D.V.; Subramanian, P.; Umamaheswari, L.; Hegde, M.R.The cash flow analysis was performed for the coconut based intercropping systems under optimum management conditions for the period 1983-84 to 1996-97, involving banana, clove and pineapple as the inter/mixed crops. The variable capital requirements for adoption of the system ranged between Rs. 8,200/ha during 1984-85 to Rs. 40, 570/ha during 1996-97 for full dose of recommended fertilizers. This was mainly due to the increase in labour cost which alone contributed to 46-72% of the annual maintenance cost. The gross margin realized from the system ranged between Rs. -1,750/ha during 1983-84 to Rs. 92,230/ha during 1996-97. The capital requirement was marginally less when 2/3rd of the recommended fertilizers were applied. The Benefit Cost Ratio of the system was more than three for full as well as two-third level of fertilizers doses.Item Clove(Syzygium aromaticum L Merr.& Perry) mixed cropping in coconut garden(2007-02-08) Srinivasa Reddy, D.V.; Biddappa, C.C.; Gopalasundaram, P.The morphology and growth patterns of coconut palms provide opportunities to grow a wide range of crops in the interspaces for maximising productivity from a unit area of land per unit time. The crops will have to be selected carefully for a locality/region so that the farmer de-rives the maximum employment opportunities for family labour and high net returns. Clove being an important commercial crop which is suitable to high rainfall humid regions can be successfully cultivated under coconut plantations aged over 20 years with assured irrigation facility during summer months in the west coast of the country. Although, the yield potential of clove under coconut shade is slightly reduced, even then, a coconut small holder would gain more profits.Item Coconut based cropping/farming systems in India(2007-02-08) Srinivasa Reddy, D.V.; Biddappa, C.C.Item Coconut based high density multispecies cropping system under different levels of fertilizers in red sandy loam soils(2007-02-08) Srinivasa Reddy, D.V.; Subramanian, P.; Gopalasundaram, P.Coconut based HDMSCS model consisting of clove (112 plants/ha), banana (345 plants/ ha) and pineapple (2250 plants/ha) was studied under full, two-third, one-third, one-forth, one-fifth of recommended fertilizers of crops as per the package of practices for productivity and economic viability for four consecutive years (1995-96 to 1998-99) at CPCRI, Kasaragod. The data on mean productivity of crops revealed that the yield levels have declined with reduction of fertilizers below the one-third of recommended dose in the system. The coconut yield did not vary much among one-third, two-third and full dose of recommended fertilizers (147 to 152 nuts/palm/year). However, fertilizer levels below one-third dose recorded a mean nut yield of 124 to 133 nuts/palm/year. The component crops viz. clove, pineapple and banana performed better under two-third and full dose of recommended fertilizers in the system. The clove have not flowered under control and one-fifth dose in some years. The banana bunch weight was 5.12 and 5.54 kg under two-third and full dose an increase of 54.7% and 67.4% respectively over control. Pineapple also recorded an increase of 23.2% and 27.1 % fruit weight respectively over control. The total cost for the system was Rs. 29,127/ha under absolute fertilizer control plot, increased by 3.9%, 4%, 4.8%, 11.6% and 18% under one-fifth, one-forth, one-third, two-third and full dose of fertilizers, respectively. The net income was maximum with two-third of fertilizers (Rs. 75,375/ha) followed by full (Rs. 69,798/ha), one-third (Rs. 64,781/ ha), one-forth (Rs. 58,535/ha) and control (Rs. 50,618/ha). This indicates that the system is more economically viable at two-third of recommended fertilizers of individual crops.Item Comparative performance of coconut nursery raised in polybags and cement tanks on different media(2007-02-08) Srinivasa Reddy, D.V.A field experiment was conducted during 1994 at CPCRI, Kasaragod in open field to study the performance of WCT coconut seedlings grown in polybags and cement tanks with different media in comparison of conventional field nursery. The germination was highest in cement tank with coir dust medium (72.50%) as compared to sowing in polybag with soil (58.50%), and conventional method at 5th month (60.75%). The growth characters such as seedling height, number of leaves/seedling, and girth at collar were also superior at 9th and 12th months in cement tank with coir dust, followed by sowing in polybag with coir dust as compared to conventional nursery. Drymatter production above ground was significantly higher in polybag with coir dust (166.18g/seedling), and cement tank with coir dust (150.78 g/ seedling) compared to rest of the treatments. The number of roots/seedling was significantly higher in polybag with coir dust (16.0) compared to conventional nursery (6.75), cement tank with soil (9.25) and germination bed planting in nursery (10.0). The final recovery of vigorous seedlings was significantly higher in cement tank with coir dust (65.0%) followed by polybag with coir dust (58.75%) compared to conventional nursery (42.5%). Considering the advantage of reduced transplanting shock at field, raising coconut seedlings in polybag with coir dust may be preferred.Item Cultivating clove in coconut garden(2007-02-08) Srinivasa Reddy, D.V.; Gopalasundaram, P.; Biddappa, C.C.The morphology and growth patterns of coconut palms provide opportunities to grow a wide range of crops in the interspaces for maximizing productivity from unit area of land per unit time. The crops should be selected carefully for a locality/region so that the farmers derive the maximum employment opportunities for their family labour and high net returns. Clove being the important commercial crop, suits to high rainfall humid regions. It can be successfully cultivated under coconut plantations aged over 20 years with assured irrigation facility during summer in the west coast of the country. Although the yield potential of clove under coconut shade is slightly reduced, even then a coconut small-holder would gain substantially more profits.Item 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.Item EFFECT OF LEVELS AND METHODS OF FERTILIZATION ON GROWTH AND RECOVERY OF VIGOROUS SEEDLINGS IN WCT COCONUT NURSERY(1998-06) Srinivasa Reddy, D.V.; Dhanapal, R.; Palaniswami, C.; Maheswarappa, H.P.Item Evaluation of alternative media to potting mixture for raising coconut seedlings in polybags(2007-02) Srinivasa Reddy, D.V.; Naresh Kumar, S.; Prabhu, S.R.Item Factors contributing to female flower production and button shedding in coconut(2007-02) Kasturi Bai, K.V.; Laxman, R.H.; Ratnambal, M.J.; Srinivasa Reddy, D.V.Influence of various factors viz., varietal difference, irrigation, leaf area and dry matter production, on female flower production and shedding of buttons in coconut have been reported in this paper. Among the 16 varieties, comprising both Tails and Dwarfs, varietal difference was found to exist in female flower production and nut setting. However, between Tails and Dwarfs no significant difference in button shedding was observed. Although, increased female flower production was observed in the irrigated palms as compared to rainfed palms, the variation in button shedding between the two was not significant. Seasonal changes were found to influence the button shedding. Leaf area and dry matter production did not influence the button shedding. However, an indirect relation has been observed between leaf area and shedding of buttons via female flower production. The observations clearly indicated that shedding of buttons is directly related to the number of female flowers produced in a bunch. An attempt has been made to check the button shedding by spraying salicylic acid and encouraging results have been obtained. This needs to be further investigated before coming to a conclusion.Item Guidelines for establishing coconut seed garden and raising coconut seedlings(2001-12) Srinivasa Reddy, D.V.; Kumaran, P.M.; Sivarama Reddy, L.Item Impact of Integrated Nutrient Management on the Mineral Nutrition and Yield of WCT Coconut in Littoral Sandy Soil at Kasaragod(2002) Srinivasa Reddy, D.V.; Upadhyay, A.K.A field experiment was conducted in littoral sandy soil at Research Farm of Central Plantation Crops Research Institute, Kasaragod on W f f palms to study the response to 27 treatment combinations of three levels each of N (500,1000,1500), P,O, (250,500,750) and K,O (750,1250,1750) g/palm/year in combination with 20 kg organicslpaldyear. Results revealed that despite sufficiency levels of N, P and K contents in the index leaf of palms and significant variations in N and K contents among different levels, the differential response in nut yield among the various combinations of fertilizer nutrients was not noticed. However, the mean nut yield in all the treatment combinations increased over60% with the introduction of practice of application of 20 kg organics1 paldyear and application of chemical fertilizers in three equal splits under various treatment combinations. This practice 9 s even led to improvement in leaf P and K contents over earlier practice of chemical fertilizers alone. Howevek, no appreciable build up was noticed for soil available N and K in the littoral sand. The soil available P was found in sufficiency level in all the treatment combinationsItem Long Term Effect of Fertilization on High Yielding Coconut Variety and Hybrids under Rainfed and Irrigated Conditions(2007-02) Srinivasa Reddy, D.V.; Gopalasundaram, P.A long-term fertilizer experiment was conducted to study the differential response of high yielding West Coast Tall variety, Chowghat Orange Dwarf (COD) x West Coast Tall (WCT) and WCT x COD hybrids of coconut for yield and economic returns under rainfed and irrigated conditions at Central Plantation Crops Research Institute, Kasaragod. The average yield for eight years showed that the fertilizer treatment 1000 g N: 1000 g P20,: 2000 g KjO/palm/year (M2) recorded significantly higher nut yield (136 nuts/palm/year) over both 500 g N : 500 g P20,: 1000 g KjO/palm/year (M,) and no fertilizer (M0) treatments. Amongst the variety/hybrids, the hybrid COD x WCT (128 nuts/palm/year) out-yielded its reciprocal cross (114 nuts/palm/year) and WCT variety (115 nuts/palm/year). The cost benefit ratio was most favourable under fertilizer treatments. For every rupee invested on manuring, the total net return was Rs. 2.80 in M, level and Rs. 2.85 in M2 level of fertilizers indicating the economic advantage of fertilizing coconut.Item Management of Coconut Plantation in Littoral Sandy Soils for Higher Productivity(2007-02) Srinivasa Reddy, D.V.; Gopalasundaram, P.; Subramanian, P.Item Mixed cropping of black pepper in coconut and arecanut gardens(2001) Srinivasa Reddy, D.V.; George V. ThomasItem Mixed Cropping of Black Pepper in Coconut and Arecanut Gardens(CPCRI, 2001-10) Srinivasa Reddy, D.V.; George V. ThomasItem Mixed Cropping of Black Pepper in Coconut and Arecanut Gardens(2007-02) Srinivasa Reddy, D.V.; George V. ThomasItem Nursery Management in Coconut(2007-02) Srinivasa Reddy, D.V.