Browsing by Author "Hameed Khan, H."

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    Cashew research and development
    (ISPC, CPCRI, 1984) Bhaskara Rao, E.V.V.; Hameed Khan, H.
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    Characteristics of coconut coir pith and its utilization in agriculture
    (1994-06) Savithri, P.; Hameed Khan, H.
    Coir pith, a highly lignocellulosic material is available in large quantities as a by product of coconut coir industry. Coir pith contains lignin and cellulose in equal quantities. It has a surface area as high as 290 ni2 per gram and is rich in potash and micronutrients such as Fe, Mn, Zn and Cu. Studies to decompose coir pith were started considering the excellent physico-chemical characteristics of the material. Pleurotus sajor-caju, Trichoderma sp., and Aspergillus sp., were found to be potent degraders of coir pith. Technology on degrading coir pith with P. sajor-caju and P. platypus has been standardized to couvert it as an agriculturally acceptable organic manure / amendment. The potential of coir pith to improve the water holding capacity of soil, modify the physical and chemical properties of soil, and as an ameleorallt in problem soils has been discussed. Beneficial effect of coir pith blended with inorganic fertilizers in many field crops viz. groundnut, maize, sorghum, turmeric, sunflower, rice and coconut has been established. There is scope for enriching coir pith with major and secondary nutrients for agricultural use. Indications are that if properly amended coir pith can serve as a substitute for farmyard manure, other organic manures and as a bedding material in poultry farms.
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    Characteristics of coconut soils of India- I. Morphology, some physico-chemical characteristics and taxonomy
    (1978) Hameed Khan, H.; Sankaranarayanan, M.P.; Narayanan, K.B.
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    Characteristics of coconut types in orissa
    (2002) Dash, D.K.; Hameed Khan, H.
    A survey was conducted in the coconut growing areas, Sakhigopal, Brahmagiri, Konark and Kakatpur of Puri districts, Orissa. Seventeen forms of tall and dwarf varieties were identified based on size, shape and colour of nuts. Characterization of forms was made base on the vegetative, reproductive and nut characters. Local strain Bana recorded to be superior yielder. Dhanei noted for more number of female flowers and Suryabana for dwarfness and ivory skin colour.
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    Coconut based high density cropping system in Goa
    (Indian Coconut Journal, 2002-11) Singh, S.P.; Manjunath, B.L.; Hameed Khan, H.; Bhanu Shalini
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    Coconut in Konkan
    (2003) Thomas Mathew, M.; Hameed Khan, H.; Shivapuje
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    Coconut in Konkan
    (2003-11) Thomas Mathew; Hameed Khan, H.; Shivapuje
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    Comparative efficiency of selected phosphates as P-carriers for coconut (Cocos nucifera L.)
    (2007-02-08) Hameed Khan, H.; Sankaranarayanan, M.P.; Joshi, O.P.; George, M.V.; Narayana, K.B.
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    Comparative efficiency of selected phosphates as P-carriers for coconut (Cocos nucifera L.)
    (1985) Hameed Khan, H.; Sankaranarayanan, M.P.; Joshi, O.P.; George, M.V.; Narayana, K.B.
    The results of a field experiment conducted for six years on laterite soil showed that single superphosphate, ammonium phosphate, nitrophosphate and rock phosphate had similar effects on the yield of nuts palm yr . However, when percentage yield increase over pretreatment yield was computed, rock phosphate proved best, followed by ammonium phosphate. Regression analysis revealed an optimum interaction between soil available P and leaf P for rock phosphate. The soil available P increased with the increase in the levels of P applied. Nitrophosphate increased the soil available P to a maximum, followed by ammonium phosphate, single superphosphate and rock phosphate. Fertilizer-P application generally reduced soil pH which was most marked with ammonium phosphate. The treatments showed marginal mobility of P to the subsoil which has been attributed to mechanical movement as a result of cultural operations in the coconut basin. Higher levels of applied P influenced the leaf P values which were not reflected in the yield. Costs of fertilizer indicated that rock phosphate as a P-carrier is cheapest.
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    Effect of coir dust blended fertilizers on carbon and nitrogen changes in a coastal sandy soil
    (1988-12) Nambiar, C.K.B.; Biddappa, C.C.; Hameed Khan, H.
    The effect of blending coconut coir dust with fertilizers on the changes in carbon and nitrogen fractions in a coastal sandy soil of Kerala was evaluated under laboratory conditions. The results indicated that the available nitrogen decreased progressively with time of incubation in all the treatments. The organic carbon content showed a similar trend as that of available nitrogen. The ethanol benzene extractable carbon has decreased whereas acid extractable carbon increased after eight months of incubation. It appears that the application of N P K fertilizer generally favours the accumulation of humic acid in the soil. There was no marked changes in the ammonical nitrogen during the period of incubation. The N P K treatment increased the nitrate nitrogen content of the soil whereas with N P K + coir dust treatment the increase was marginal suggesting nitrification inhibition property of coir dust.
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    Effect of coir dust on mineralisation of urea Nitrogen in coconut growing red sandy loam soil (Arenic paleustults)
    (2007-02-08) Joshi, O.P.; Hameed Khan, H.; Biddappa, C.C.; Manikandan, P.
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    Effect of coir dust on mineralisation of urea nitrogen in coconut growing red sandy loam soils (Arenuc Paleustults)
    (1985-12) Joshi, O.P.; Hameed Khan, H.; Biddappa, C.C.; Manikandan, P.
    Laboratory incubation studies revealed that blending urea with retted and unretted coir dust resulted in inhibition/immobilization of urea nitrogen. Blending of urea with unretted coir dust in 1: 1 proportions resulted in accumulation of NH4+-N and retted coir dust in the same proportion led to lowest production of NH4+-N. During the incubation period NOj -N appeared to be withdrawn from the system in urea blended with unretted coir dust (1:1) treatment, whereas its production was lower in the case of other combinations of urea with retted (1: 1 and 9 :1) and unretted coir dust (9:1) compared to urea. Production of total mineralised nitrogen was consistently lowest when urea was blended with retted coir dust (1: 1). Unretted coir dust (1:1) produced lower mineralised nitrogen than urea alone and the other blendings with lower proportions of retted and unretted coir dust (9: 1) showed intermediate behaviour. The results indicated the usefulness of blending urea with coir dust for controlled and gradual release of urea nitrogen. It has a bearing in the fertilizer programmes for perennial plantation crops largely grown in soils prone to heavy leaching losses.
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    Effect of coir dust on mineralisation of urea, nitrogen in coconut growing red sandy loam soils (Arenue Paleustults)
    (Indian Society for Plantation Crops, 1985-12) Joshi, O.P.; Hameed Khan, H.; Biddappa, C.C.; Manikandan, P.
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    Effect of Ferrolure + In the Management of Red Palm Weevil (Rhynochoporus Ferrungineus F.) Infesting Coconut
    (2002) Rajamanickam, K.; Ramaraju, K.; Packiaraj, D.; Hameed Khan, H.; Subaharan
    Evaluation of Ferrolure pheromone trap in combination with food baits consisting of 1 kg of sugarcane molasses + 5 grams of yeast + 5 ml of glacial acetic acid + split petioles of coconut taken in a bucket of 10 lit. capacity was placed @ one traplha. During the first fortnight of trap installation, 49 weevils (32 females and 17 males) were trapped. There was a decline in the catch (1 weevil) after two months of trap installation due to reduction in active ingredient of the pheromone compound in the lure. On replacement of new sachets, the number of weevils trapped increased to 22 in sixth fortnight. The results indicate that the pheromone trap Ferrolure aid in monitoring and controlling the weevils in a ecofriendly manner.
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    Effect of graded levels of NPK on the reproductive characters and yield of hybrid coconut CODx WCT
    (2009-01) Venkitaswamy, R.; Hameed Khan, H.; Palaniswami, C.
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    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.
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    Effect of NPK fertilization on the mineral nutrition and yield of three coconut genotypes
    (1986) Hameed Khan, H.; Gopalasundaram, P.; Joshi, O.P.; Nelliat, E.V.
    Annual application of NPK fertilizers over a 18 year period to coconut on red sandy loam soils resulted in a minimal increase in mineralisable N, but in a marked increase in available P and K. Plant N levels, however, reflected the improved N nutrition but did not reach sufficiency levels found elsewhere. An available P status of 15 ppm in the control plots kept leaf P at sufficiency levels. P fertilizers did not increase the P content of leaves. K fertilizers raised the K leaf content to sufficiency levels. Doubling the M, fertilizer rates of 500 gN, 220 gP and 830 gK per palm per year had no effect on N, P and K levels in the palm leaves. Changes in K levels of the leaves had antagonistic effects on leaf Mg (r = — 0.68**) and leaf Na (r = — 0.87 **). As this effect brings leaf Mg close to deficiency values palms receiving K might need additional Mg as well. The findings and interpretation of soil and leaf analysis data were confirmed by large yield responses to application of NPK fertilizers. Genetic differences between palms in their response to levels of nutrient supplies were apparent. The CDO X WCT hybrid out-yielded the high yielding WCT variety especially when NPK was given at the M, level. The response in yield to applied fertilizers was linear for WCT and curvilinear for the hybrids CDO X WCT and WCT X CDO.
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    Effect Of Organic Manuring On Some Physical Properties And Water Retention Of Coastal Sand.
    (1982) Joshi, O.P.; Nambiar, C.K.B.; Hameed Khan, H.