Browsing by Author "Ray, A.K."
Now showing 1 - 20 of 29
Results Per Page
Sort Options
Item Crown choking disease of Coconut in Assam/West-Bangal(Central Plantation Crops Research Institute Kasaragod, 1992) Ray, A.K.Item Crown choking disorder of coconut: A case of boron deficiency(2007-02-08) Baranwal, V.K.; Manikandan, P.; Ray, A.K.Item Economics of intercropping vegetables and flowering crops in pre-bearing arecanut garden under Assam condition(Indian Society for Plantation Crops, 2007-08) Ray, A.K.; Borah, A.S.; Maheswarappa, H.P.; Acharya, G.C.A field trial was conducted at Central Plantation Crops Research institute, Research Centre, Kahikuchi (Assam) to evaluate the performance of different vegetables and flowering crops in pre-bearing arecanut garden. Two year (2003-05) results indicated that, vegetable crops like radish, cabbage, cauliflower and brinjal performed well and resulted in higher net return and B:C ratlo (4.0 to 5.0) and higher return per rupee invested during winter season. Among flowering crops, marigold and chrysanthemum performed well and resulted in higher B:C ratio (2.05 to 2.43) compared to gladiolus.Item Effect of different mulching materials and weed control measures on growth of coconut seedlings under irrigated condition in Assam(2007-03) Borah, A.S.; Ray, A.K.; Subramanian, P.; Maheswarappa, H.P.; Chakrabarty, R.; Barman, I.An experiment was conducted during 2004-2005 to study the effect of different mulching materials and weed control measures on conservation of soil moisture,weed growth, microbial population and growth parameters of coconut and growth parameters of coconut at CPCRI, RC, Kahikuchi, Assam. The soil moisture content was higherin black polythene mulch followed by white polythene mulch and organic mulch. The growth parameters such as plant height, girth and number of leaves 12 months after treatment imposition were significantly higher in black polythene mulch followed by white polythene mulch and organic mulch Polythene mulches, organic mulch and herbicide application effectively controlled the weeds around the seedling basin. The highest microbial population was observed under organic mulch.Item Effect of organic and inorganic sources of nutrients on soil fertility status of arecanut (Areca catechu) in north-east India(2015-10) Acharya, G.C.; Paul, S.C.; Chakrabarty, R.; Ray, A.K.Item Effect of soil and water conservation measures on growth and yield of arecanut under sloppy terrain of Assam(2006) Borah, A.S.; Ray, A.K.; Maheswarappa, H.P.; Subramanian, P.; Krishnakumar, V.; Barman, I.Item Effectiveness of training - cum - demonstration on increasing return from coconut plantations under rainfed condition in Assam(2006) Indrajit Barman; Ray, A.K.; Maheswarappa, H.P.; Acharya, G.C.Item Effectiveness of training-cum-demonstration for the management of coconut crown choke problem in the farmers field(2008-09) Indrajit Barman; Ray, A.K.; Maheswarappa, H.P.Item Evaluation of potting mixtures for raising arecanut seedlings in polybags(Indian Society for Plantation Crops, 2008-05) Borah, A.S.; Nath, A.; Ray, A.K.; Ravi Bhat; Maheswarappa, H.P.; Subramanian, P.; Krishnakumar, V.Item Feasibility of biomass recycling of arecanut based cropping system(National Institute of Agricultural Extension Management, 2006) Indrajit Barman; Ray, A.K.; Maheswarappa, H.P.Item Ganoderma disease of arecanut in Assam(2008) Ray, A.K.; Chakrabarthy, R.; Acharya, G.C.Item In vitro studies on management of basal stem rot of arecanut caused by Ganoderma lucidum (Curtis Ex. Fr.) Karst(2007) Ranjana Chakrabarty; Ray, A.K.Item In Vitro studies on management of bud rot disease of arecanut caused by Phytophthora sp.(2007) Ranjana Chakrabarty; Ray, A.K.Item Invitro studies on management of bud rot disease of arecanut caused by phytophthora sp.(2007) Ranjana Chakrabarty; Ray, A.K.Item Macronutrient status and yield stability of arecanut (Kahikuchi) under integrated nutrient management practice in Assam(2015-12) Paul, S.C.; Acharya, G.C.; Hussain, M.; Ray, A.K.; Sit, A.K.A long term field experiment was carried out in clay-loam soil at ICAR-CPCRI, Kahikuchi campus, Guwahati, Assam during 2000-2012 with arecanut variety Kahikuchi with seven nutrient combinations. The treatments included control (T1), 100 per cent vermicompost (T2), 200 per cent vermicompost (T3), 100 per cent chemical fertilizer (T4), 50 per cent vermicompost + 50 per cent chemical fertilizer (T5), 1/3rd vermicompost + 2/3rd chemical fertilizer (T6) and 2/3rd vermicompost + 1/3rd chemical fertilizer (T7). The treatment T7 produced highest fresh ripened arecanut yield of 16.7 kg i.e., about 3.6 kg dry chali per palm. Positive correlations were obtained between yield of arecanut and soil available N, P and K content. Significant and positive correlation was found between leaf N, P, K and available N, P and K content in surface and sub-surface soil. Available N, P and K content increased over the years under nutrient applied plot that reflected in yield of arecanut. The average yield in various treatments followed in the order of T7 > T5 = T6 > T2 = T3 > T4 > T1. The application of targeted, sufficient and balanced quantities of organic and inorganic fertilizer will be the need of the hour to make nutrients available for higher yield, soil fertility maintenance and agricultural sustainability without polluting environment.Item Marketing and processing of arecanut in Assam - an overview(2007-09) Acharya, G.C.; Barman, I.; Ray, A.K.Item Performance of Areca Based High Density Multispecies Cropping System Under Different Levels of Fertilizers(2007-02) Ray, A.K.; Srinivasa Reddy, D.V.; Sairam, C.V.; Gopalasundaram, P.Arecanut based high density multispecies cropping system (HDMSCS) model was studied under three levels of fertilizer management i.e. full, two third and one-third dose of recommended fertilizers for productivity. The component crops included in the system were pepper (Panniyur-1) trained on arecanut palms, banana (Cheni Champa) in a triangular system (5.4 m x 2.7 m), turmeric (Kasturi) spaced 30 cm X 30 cm and pineapple (Queen) in two rows spaced 60 cm x 30 cm in between two palms of arecanut. Nine years of mean economic yield revealed that full dose of recommended fertilizer application resulted in higher production with arecanut chali yield of 2405 kg/ha, dry pepper yield of 1252 kg/ha, pineapple fruit yield of 987 kg/ha and 2127 kg of turmeric/ha. However.in banana, yield did not vary much between full and two-third dose of fertilizers (6331 to 6313 kg/ha). Under one-third dose of fertilizers all the crops recorded lowest yields with arecanut chali yield of 1975 kg/ha, 884 kg/ha pepper, 5165 kg banana bunches/ha, 543 kg pineapple fruits/ha and 1801 kg turmeric/ha. The net discounted returns under graded levels of fertilizers for the mean of nine years data revealed that application of full dose of fertilizers resulted in, higher net returns of Rs 38232/ha/year followed by two-third dose of fertilizers (Rs. 36532/ha). The Benifit Cost Ratio (BCR) realized under full, two-third and one-third dose of fertilizers was 3.28, 3.43 and 3.31 respectively. The estimated Net Present Worth (NPW) was Rs 343977, Rs 329370 and Rs 279412 under full, two-third and one-third level of recommended fertilizers of crops was economically more viable for the system as a whole.Item Performance of areca-based high density multispecies cropping system under different levels of fertilizer(2007-02) Srinivasa Reddy, D.V.; Ray, A.K.An arecanut (Areca catechu Linn.) based high-density multispecies cropping system (HDMSCS) model was studied under three levels of fertilizer management, i.e., full, two-thirds, and one-third dose of recommended fertilizers for productivity. The component crops included in the system were pepper (cv. Panniyur) trained on arecanut palms, banana (cv. Cheni Champa) in a triangular system (5.4 m x 2.7 m), turmeric (cv. Kasturi) spaced 30 cm x 30 cm, and pineapple (cv. Queen) in two rows spaced 60 cm x 30 cm between two palms of arecanut. Nine years of mean economic yield revealed that the full dose of recommended fertilizer application resulted in higher production with arecanut chali yield of 2405 kg ha*1, dry pepper yield of 1252 kg ha1, pineapple fruit yield of 988 kg ha1, and turmeric yield of 2127 kg ha . However, the banana yield did not vary much between the full and two-thirds dose of fertilizers (6331 kg to 6313 kg ha-1). Under one-third dose of fertilizers, all the crops realized the lowest yields with arecanut chali yield of 1975 kg ha1; pepper, 1051 kg ha1; banana, 5165 kg ha1; pineapple, 543 kg ha1; and turmeric, 1801 kg ha1. The net returns under graded levels of fertilizers for the mean of nine years data revealed that application of full dose of fertilizers resulted in higher net returns of Rs 324 548 (U.S. $6801.00) ha1 yr1. The major share was derived from the main crop of arecanut (48%) followed by the component crop of pepper (43%). Other crops contributed the remaining 8.9%. The pineapple cultivation was found to be uneconomical as a component crop in the areca-based HDMSCS model.Item Performance of different varieties of arecanut in Assam(Indian Society for Plantation Crops, 2008) Ray, A.K.; Borah, A.S.; Ananda, K.S.; Maheswarappa, H.P.Item Production of quality rooted cuttings of black pepper throughout the year under North-Eastern Region(2005) Ray, A.K.; Sutanu Kumar Satapathy; Maheswarappa, H.P.