Browsing by Author "Mohd. Yusuf"
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Item Effect of long term fertiliser application and cultural practices on soil chemical properties and yield of coconut(2007-02-08) Hameed Khan, H.; Gopalasundaram, P.; Mohd. Yusuf; Hegde, M.R.Management of coconut groves through cultural practices alone, like cultivation of interspaces twice a year and weed control using herbicides only produced poor yields ranging from 10.7 to 32.3 nuts/palm as compared to fertiliser treatments coupled with cultural practices which produced yields ranging from 83 - 107.9 nuts/palm/year, indicating that cultural practices alone could not sustain higher productivity. However, long term studies have indicated that cultural practices alone are superior to no cultivation and no manuring. For judging the nitrogen status of coconut groves plant analysis may be a reliable index than soil analysis. The plant N levels obtained are much lower even in palms which receive regular fertiliser application on a long term basis indicating that the critical levels established by IRHO may be lowered for Kerala conditions. The palms under cultural treatment have an imbalanced nutrition compared to palms which are regularly fertilized.Item Management of Hybrid Coconut Palms(2007-02) Mohd. Yusuf; Gopalasundaram, P.Recently, hybrids Chandrasankara (COD x WCT) and Chandralaksha (LO x COD) from CPCRI, Kasaragod, Lakshaganga (LO x GB) and Anandaganga (AO x GB) from the Kerala Agricultural University and VHC 1 (ECT x OGD) and VHC 2 (ECT x MYD) from the Tamil Nadu Agricultural University have been released for cultivation. Hybrids Chandralaksha and Lakshaganga were found tolerant to drought. Chandrasankara appeared to be susceptible to drought. However, in sandy loam soil under rainfed conditions at Kasaragod, this hybrid has outyielded the hybrid WCT x COD and the local cv WCT. Under rainfed conditions of Kasaragod with the fertilizer level of 500 g N + 500 g P2O5 + 1000 g k20/palm/year, hybrid Chandrasankara produced 92 nuts/palm/year as against 79 and 67 nuts respectively in WCT x COD and WCT. With 20 mm irrigation through perfo-sprinkler, hybrids Chandrasankara and WCT x COD yielded 147 and 135 nuts/palm/year respectively, compared to 126 nuts by WCT. Hybrid Chandrasankara showed higher efficiency in utilizing native fertility and attained earlier bearing than WCT x COD and WCT.Item Moisture depletion patterns in coconut plantation under rainfed(2007-02) Joshi, O.P.; Gopalasundaram, P.; Mohd. YusufUnder rainfed conditions, the evapotranspiration was about 4mm/day during the first two days of receipt of rains. The values changed to 2.4mm/day and 2.1 mm/day, respectively, when calculated for the first week and first two weeks after rains. 0-70 cm layer had the maximum contributron to the water needs of coconut. Water loss from the interspaces was higher than from basins. Under irrigated conditions, the maximum evapotranspiration (6.6mm/day) and water loss from interspaces (5.6 mm/day) were recorded with 20 mm water at IW/CPE ratio of 1.00. Decreasing frequency gradually decreased the rates to 4.0mm and 2.3 mm/day at IW/CPE = 0.75 and 0.50, respectively from 0-90 cm soil depth. It is concluded that irrigation with 20 mm of water at IW/CPE ratio=1.00 is adequate to meet the water needs of coconut for optimum growth. A higher quantity is not desirable as it leads to deep percolation losses.Item Organic Nutrition in Coconut Gardens(2007-02) Hegde, M.R.; Mohd. Yusuf; Muliyar, M.K.Item Performance of Soybean Varieties as Intercrop in Coconut Garden(2007-02) Hegde, M.R.; Mohd. YusufVarious annual and perennial crops having different stature, canopy shape and size and rooting habit have been reported to perform well in association with coconut. Soybean is one such crop having great potential both as a source of protein and oil. With the increased gap in demand and supply of both oil and protein source, this crop has tremendous future and needs encouragement. With a view to finding out the suitable soybean variety to grow as intercrop in coconut garden, a study was undertaken at Central Plantation Crops Research Institute, Kasaragod. Among the twelve varieties tried, cv FK-472 gave higher yield (980 kg/ha) and net returns (Rs. 3190 kg/ha) followed by MACS-58 (827 kg/ha and Rs. 2272/ha respectively). Thus it has great potential to be grown as intercrop with coconut when sown preferably from the last week of January to first week of March in the Malabar region of Kerala.Item Poultry Farming in Homestead Coconut Garden(2007-02) Hegde, M.R.; Mohd. Yusuf; Mohd. ShaffeeItem Problems and Prospects of Growing Vegetables as Intercrops in Coconut Garden(2007-02) Hegde, M.R.; Mohd. Yusuf; Vidyasagar, P.S.P.V.Item Reducing the Risks in Rainfed Coconut Cultivation(1991) Das, P.K.; Mohd. Yusuf; Hegde, M.R.Item Soil moisture balance in relation to rainfall and evaporation(1987) Mohd. Yusuf; Dhanapal, R.The precipitation was considerably in excess of evaporation from June to October. The maximum surplus (988.5 mm) was in July followed by June (876.3 mm) and August (551.7 mm). The precipitation fell short of evaporation in November and continued till May, the maximum shortage being in March. The soil moisture deficit developed from September and gradually increased upto March and again decreased till May. The availablility of soil moisture in the top soil (0-15 and 15-30cm) was nil from from November to April while the lower layers maintained 54% in March. Coconut palms should be irrigated from November to May for realising potential yield under Kasaragod conditions.Item Water Management in Coconut and Arecanut(1994) Mohd. Yusuf; Gopalasundaram, P.; Abdul Khader, K.B.