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  • 1
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    The Theory of Purusarthas: Revaluation and Reconstruction (1981)
    Dordrecht, Holland : Periodicals Archive Online (PAO)
    Journal of Indian Philosophy. 9 (1981) 49 
    Details
    ISSN: 0022-1791
    Thema: Philosophie
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:j554-1981-009-00-000012
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  • 2
    Digitale Medien
    Digitale Medien
    Effect of level, timing and method of nitrogen application on spring-planted sugarcane (1981)
    Springer
    Nutrient cycling in agroecosystems 2 (1981), S. 127-134 
    Details
    ISSN: 1573-0867
    Schlagwort(e): millable canes ; sugar yield ; foliar application ; juice quality
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract A field experiment conducted at the Indian Agricultural Research Institute, New Delhi during the years 1976–79 involving two planted cane crops and two ratoons showed that nitrogen application to planted cane increased the millable cane and sugar yields of the planted cane and had a significant residual effect on the ratoon. Taking together the yields of planted cane and ratoon, an application of 150 kg N ha−1 increased the yield of millable cane by 33.3t ha−1 and that of sugar by 3.9t ha−1. The results suggested that with 75 kg N ha−1 three-quarters should be applied at planting, while with 150 kg N ha−1 only half should be applied at planting. The remaining dose of nitrogen should be applied at earthing up. Foliar application of part of the nitrogen indicated some advantage in the case of millable canes in the planted cane, but this did not show up in the sugar yield.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01080099
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  • 3
    Digitale Medien
    Digitale Medien
    Yield and nitrogen uptake by rice as affected by variety, method of planting and new nitrogen fertilizers (1980)
    Springer
    Nutrient cycling in agroecosystems 1 (1980), S. 207-213 
    Details
    ISSN: 1573-0867
    Schlagwort(e): urea briquettes ; sulphur-coated urea ; neem-cake-coated urea ; transplanted ; direct seeded ; puddled-broadcast
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract A field experiment conducted for two years (1977 and 1978) at the Indian Agricultural Research Institute, New Delhi showed that yield and nitrogen uptake by rice was more in the case of medium duration (135 days) variety Improved Sabarmati than in the case of the short duration (105 days) variety Pusa-33. Highest yield and nitrogen uptake by rice was recorded when it was transplanted and lowest when rice was direct-seeded (drilled in moist soil). Broadcasting sprouted seeds on puddled seed bed gave yield and nitrogen uptake in between transplanting and direct-seeding and provides a reasonably acceptable method of planting. Rice responded well to nitrogen and the economic optimum dose was found to be 160–170 kg N ha−1. Urea briquettes gave the highest yield and nitrogen uptake by rice and was superior to sulphur-coated urea or neem-cake-coated urea with respect to N-uptake. All these new nitrogen fertilizers were superior to urea and therefore hold considerable promise in rice culture.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01074193
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  • 4
    Digitale Medien
    Digitale Medien
    The theory of Purusārthas: Revaluation and reconstruction (1981)
    Springer
    Journal of Indian philosophy 9 (1981), S. 49-76 
    Details
    ISSN: 1573-0395
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Philosophie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00202729
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  • 5
    Digitale Medien
    Digitale Medien
    Nitrogen leaching losses from conventional and new nitrogenous fertilizers in low-land rice culture (1980)
    Springer
    Plant and soil 57 (1980), S. 383-392 
    Details
    ISSN: 1573-5036
    Schlagwort(e): Leaching ; Nitrification inhibitors ; Slow-release fertilizers ; Neem cake ; Nitrapyrin ; Sulphur-coated urea ; Urea super granules
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Summary A pot-culture experiment was conducted to assess the leaching losses of N from the conventional and new nitrogen fertilizers under low-land rice culture. Leaching losses of N were generally less than 20% of applied N with sources other than sodium nitrate and these could be reduced by blending urea with nitrification inhibitor N-Serve or coating withneem cake or by using urea super granules or slow-release N fertilizer sulphur coated urea. These new nitrogen fertilizers were more effective than urea for rice.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02211695
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  • 6
    Digitale Medien
    Digitale Medien
    Removal of nitrogen, phosphorus and potassium by rice-wheat double cropping system as affected by duration of rice variety, methods of planting rice and levels and sources of nitrogen (1983)
    Springer
    Plant and soil 70 (1983), S. 287-295 
    Details
    ISSN: 1573-5036
    Schlagwort(e): Neem cake coated urea ; Nitrogen ; Phosphorus ; Potassium ; Rice ; Rice-wheat ; Sulphur coated urea ; Urea ; Urea briquette
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Summary Removal of NPK in the rice-wheat double cropping system was studied in a field experiment conducted for two crop years (1977–79) at the Indian Agricultural Research Institute, New Delhi. The double cropping system producing 8×103 kg/ha/yr grain (4.5×103 kg rice and 3.5×103 kg wheat) removed 166 kg N, 35 kg P and 174 kg K per hectare per year. Thus the rice-wheat double cropping system heavily depletes the soils of their NPK content and calls for balanced fertilization for continued high production. NPK removal was higher when a 135-day duration rice variety was grown than when a 105-day duration variety was grown, because the former resulted in overall (rice + wheat) more grains and straw. Similarly grain and straw yield and NPK removal was more with transplanted rice than when sprouted rice seeds were sown on puddled seedbed; the latter method was in turn superior to direct drilling. Use of urea briquette, neem cake coated urea and sulphur coated urea gave higher yields and resulted in removal of more NPK than prilled urea.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02374787
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  • 7
    Digitale Medien
    Digitale Medien
    Intergenotypic competition in mixed stands of spring wheat genotypes (1984)
    Springer
    Euphytica 33 (1984), S. 241-247 
    Details
    ISSN: 1573-5060
    Schlagwort(e): Mixed stands ; relative yield total ; intergenotypic competition ; competitive ability
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Summary Grain yield and yield components were studied in the three spring wheat genotypes HD 2160 (dwarf), Kalyansona (semi-dwarf) and C 306 (tall) in pure stands as well as in their binary mixed stands during two years. The grain yields of the three genotypes in pure stands ranked as follows: HD 2160 〉 Kalyansona 〉 C 306. Four mixed stands, 3:1 HD:K, 1:1 HD:C in the first year and 1:1 K:C, 1:3 K:C in the second year out-yielded the pure stand of the better component genotype by 4.4, 2.7, 3.3 and 0.8 percent, respectively. Out of the nine mixed stands four in the first year and seven in the second year out-yielded the midmonoculture yields and the increases ranged from 1 to 7.6 percent. Mixed stands were more stable than pure stands. The yield and yield components of the dwarf genotype HD 2160 scored less and those of the taller genotype C 306 scored higher in mixed stands. The semi-dwarf genotype Kalyansona yielded more with HD 2160 and less with C 306. Plant height but not high yielding ability conferred high competitive ability. With respect to competitive ability the three genotypes ranked as follows: C 306 〉 Kalyansona 〉 HD 2160. The results illustrate the importance of intergenotypic competition in increasing crop production and reducing genotype-environment interactions. Such studies are important to agronomists as genotypes with high competitive ability can be useful to combat the weed problem. They are also important to plant breeders for predicting the fate of genotypes with low competitive ability in heterogeneous populations.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00022772
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  • 8
    Digitale Medien
    Digitale Medien
    On the nature of mechanisms responsible for the higher efficiency of urea supergranules for rice (1982)
    Springer
    Plant and soil 69 (1982), S. 127-130 
    Details
    ISSN: 1573-5036
    Schlagwort(e): Ammonium ; Nitrite ; Urea prills ; Urea hydrolysis ; Urea-N ; Urea supergranules
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Summary A laboratory study made with a sandy clay loam soil of pH 7.7 showed that hydrolysis of urea was slower when applied as urea supergranules (USG) than commercial urea prills. This resulted in maintenance of applied nitrogen as ammonium in the soil for a longer period. Nitrite concentration was also much less with USG. These three mechanisms are responsible for the higher efficiency of USG over urea prills.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02185712
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  • 9
    Digitale Medien
    Digitale Medien
    Effect of rates of nitrogen and relative efficiency of sulphur-coated urea and nitrapyrin-treated urea in dry matter production and nitrogen uptake by rice (1980)
    Springer
    Plant and soil 55 (1980), S. 389-396 
    Details
    ISSN: 1573-5036
    Schlagwort(e): Apparent N ; recovery ; Denitrification ; IBDU N ; concentration ; Neem cake ; Nitrification inhibitors ; Nitrapyrin (N-Serve) ; N loss ; N uptake ; Rice ; Sandy clay loam ; Slow-release ; N fertilizers ; Sulphur-coated urea ; Urea
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Summary A field experiment conducted for two rainy seasons (1974 and 1975) on a sandy clay loam soil at the Indian Agricultural Research Institute, New Delhi showed that at 100kg N/ha the apparent recovery of urea nitrogen by the rice crop was only 28%, which was raised to 41.7% by treating urea with Nitrapyrin and to 47.4% by coating urea withneem (Azadirachta indica Juss) cake. The recovery with sulphur-coated urea was 37.7%. Dry matter production nitrogen concentration in plant and uptake by rice were increased as the rate of nitrogen was increased from 0 to 150kg N/ha. Advantage of treating urea with Nitrapyrin or coating withneem cake was seen more in grain than straw yield.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02182699
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  • 10
    Digitale Medien
    Digitale Medien
    Nutrient transport in a bovine lens epithelial cell line (1981)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 107 (1981), S. 231-236 
    Details
    ISSN: 0021-9541
    Schlagwort(e): Life and Medical Sciences ; Cell & Developmental Biology
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Biologie , Medizin
    Notizen: A bovine calf lens epithelial cell line (CLE-1) that synthesizes crystallin has been established in culture and some of its transport properties have been characterized using both cells and membrane vesicles derived from them. The membrane vesicles fractionate with high recovery of plasma membrane markers, showing a 40-fold purification of 5′-AMPase and a 20-fold decrease in the specific activity of the mitochondrial marker enzyme succinic dehydrogenase relative to a cell homogenate. Transport sites demonstrated higher specific activity than has been seen in vesicles from cell lines studied previously. The uptake of α-amino isobutyric acid (AIB) (an alanine analog) by CLE-1 cells is stimulated four- to fivefold by Na+ and exhibits a Km of 5.4 mM with a Vmax of 50 pmoles/min μg of cell protein. The uptake of leucine was not Na+ stimulatable. The uptake of AIB by the cells was reduced by 43% at confluence. Thus, the cell density dependent behavior of the uptake of the alanine amino acid family in CLE-1 is similar to that of various fibroblast cells.The Na+ caused a threefold stimulation of AIB uptake in the membrane vesicles, while vesicular uptake of leucine was unaffected by Na+. The uptake of adenine, guanine, uridine, and guanosine was also tested in these vesicles. The substrates were rapidly accumulated, came to a steady state distribution within 1-2 minutes, and were recovered as the unaltered compounds after uptake.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jcp.1041070208
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