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Nitrogen Fertilizer Effect on the Agronomic Aspects of Asparagus racemosus  [PDF]
K.L. Hossain,M.M. Rahman,M.A. Banu,T.R. Khan
Asian Journal of Plant Sciences , 2006,
Abstract: This research paper attempts to investigate the performance of Asparagus racemosus grown by the application of different forms and doses of nitrogen fertilizer at the Germplasm Centre (GPC) of the Fruit Tree Improvement Program (FTIP), Department of Horticulture, Bangladesh Agricultural University, Mymensingh during February to October, 2005. The treatments consisted of prilled urea and super granule urea at 0, 100, 200 and 300 kg N ha-1 concentrations. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. The number, length, diameter and both fresh and dry weight of tuberous roots were found higher with super granule urea than that of prilled urea. Root protein content was found to be 25.20% higher in super granule urea treated plants compared to prilled urea. The rates of nitrogen also had a significant effect on plant height, leaves number and number, length, diameter and both fresh and dry weight of tuberous roots when compared to 0 kg N kg ha-1 to the rest of the rates. Root protein content was 21.87, 12.5 and 14.06% higher than the control at the 100, 200 and 300 kg N ha-1 concentrations, respectively. Therefore, application of 100 kg N ha-1 as super granule urea was found to be sufficient for the sustainable production of tuberous roots of Asparagus.
Soil and starter fertilizer and its effect on yield and protein composition of malting barley
Malik,A.H; Holm,L; Johansson,E;
Journal of soil science and plant nutrition , 2012, DOI: 10.4067/S0718-95162012005000036
Abstract: fertilizer application and growing locations are known to influence yield and protein concentration of malting barley. the aim of the present investigation was to evaluate the influence of soil and starter fertilizer on yield and protein composition in mature and maltedbarley. the cultivar prestige was grown in two different soils (lunnarp and laxmans?karp) in combination with the use/non-use of starter fertilizer in climate chambers. yield parameters, protein concentration and composition was measured. effect of soil on plant emergence, yield and protein composition was significant while the effect of starter fertilizer was not. more nitrogen rich and low humus content soil (lunnarp) resulted in higher grain yield and polymerization of proteins and lower protein concentration than the other soil. combination of soil and starter fertilizer influenced protein composition in mature and malted barley. breakdown of proteins were significantly higher at certain combination of soil and starter fertilizer than with other combinations. the lunnarp soil combined with starter fertilizer was preferable to obtain high yield, low protein concentration and large grain size in mature grains. when breakdown of proteins at malting was taken into consideration as well, lunnarp soil together with no starter fertilizer might be the best option.
Soil and starter fertilizer and its effect on yield and protein composition of malting barley
Malik,A.H; Holm,L; Johansson,E;
Journal of soil science and plant nutrition , 2012, DOI: 10.4067/S0718-95162012005000036
Abstract: fertilizer application and growing locations are known to influence yield and protein concentration of malting barley. the aim of the present investigation was to evaluate the influence of soil and starter fertilizer on yield and protein composition in mature and maltedbarley. the cultivar prestige was grown in two different soils (lunnarp and laxmans?karp) in combination with the use/non-use of starter fertilizer in climate chambers. yield parameters, protein concentration and composition was measured. effect of soil on plant emergence, yield and protein composition was significant while the effect of starter fertilizer was not. more nitrogen rich and low humus content soil (lunnarp) resulted in higher grain yield and polymerization of proteins and lower protein concentration than the other soil. combination of soil and starter fertilizer influenced protein composition in mature and malted barley. breakdown of proteins were significantly higher at certain combination of soil and starter fertilizer than with other combinations. the lunnarp soil combined with starter fertilizer was preferable to obtain high yield, low protein concentration and large grain size in mature grains. when breakdown of proteins at malting was taken into consideration as well, lunnarp soil together with no starter fertilizer might be the best option.
Soil and starter fertilizer and its effect on yield and protein composition of malting barley  [cached]
A.H Malik,L Holm,E Johansson
Journal of Soil Science and Plant Nutrition , 2012,
Abstract: Fertilizer application and growing locations are known to influence yield and protein concentration of malting barley. The aim of the present investigation was to evaluate the influence of soil and starter fertilizer on yield and protein composition in mature and maltedbarley. The cultivar Prestige was grown in two different soils (Lunnarp and Laxmans karp) in combination with the use/non-use of starter fertilizer in climate chambers. Yield parameters, protein concentration and composition was measured. Effect of soil on plant emergence, yield and protein composition was significant while the effect of starter fertilizer was not. More nitrogen rich and low humus content soil (Lunnarp) resulted in higher grain yield and polymerization of proteins and lower protein concentration than the other soil. Combination of soil and starter fertilizer influenced protein composition in mature and malted barley. Breakdown of proteins were significantly higher at certain combination of soil and starter fertilizer than with other combinations. The Lunnarp soil combined with starter fertilizer was preferable to obtain high yield, low protein concentration and large grain size in mature grains. When breakdown of proteins at malting was taken into consideration as well, Lunnarp soil together with no starter fertilizer might be the best option.
Agronomic Factors on Selected Hulless Barley Genotypes  [PDF]
Hamid Reza Balouchi,Zeinalabedin Tahmasbi Sarvestani,Seyed Ali Mohammad Modarres Sanavy
Journal of Agronomy , 2005,
Abstract: Yield and yield components evaluation of different hulless barley (Hordeum vulgare L.) genotypes with objective determination of the best plant density and nitrogen fertilizer rate is necessary for obtaining maximum quality and quantity yield. In the first year, for these propose twenty genotypes were evaluated in aspect of quality and quantity yield. In second experiment, ten best genotypes selected from the first experiment were evaluated for agronomic factors such as plant density and N fertilizer rate application. Both experiments were conducted in Research Farm of Tarbiat Modarres University, College of Agriculture, Tehran, Iran during 2001-2003 growing season. The experimental designs of first and second experiments were Randomized Complete Block and Split-Split-Plot laid out in Randomized Complete Block designs, respectively, with three replications and a total of ten genotypes (as main plot), 2 levels of nitrogen fertilizer (90 and 120 kg nitrogen ha-1 as subplot) and 3 plant densities (300, 400 and 500 plants m-2 as sub sub-plot). The results showed that a significant difference between genotypes and plant density interaction in grain yield and harvest index. The highest grain yield, spike number m-2 and grain number spike-1 were produced by ALLSO`S`/C103902-2 genotype under 500 plant m-2. FICC2595 Genotype showed the highest thousand-kernel weight (46 g) and FICC1570 genotype produced the highest spike number m-2 (958 spike m-2). The mean comparison of protein yield in different plant density m-2 showed that 500 plants m-2 treatment produced the highest protein yield (58.48 g m-2).
Effect of Nitrogen Fertilizer on Yield and Yield Components of Three Sesame Cultivars in Bushehr Province  [cached]
M Ahmadi,M Bahrani
Journal of Science and Technology of Agriculture and Natural Resources , 2009,
Abstract: A study was conducted in 2007 to investigate the effect of nitrogen fertilizer rates (0, 30, 60 Kg ha-1) on some agronomic characteristics, seed yield and oil percentage in three Sesame(Sesamum indicum L.) cultivars (Dashtestan, Darab 14, and Zarghan) in Kaki region (Bushehr Province). The type of design was completely randomized block with factorial arrangement and three replications. Nitrogen(N) fertilizer had a very significant effect on agronomic characteristics, such as number of capsules in the main stem, number of capsules per plant, branches /plant, biological yield, seed yield ,and oil percentage, but had no effect on 1000 seed weight. There was no significant difference between the application of 30 and 60 Kg of N fertilizer ha-1 with respect to harvest index. Seed yield increased as N rate increased, but each cultivar had a different response to different rates of nitrogen. Dashtestan and Zarghan had superiority over Darab 14 with respect to overall agronomic properties such as response to fertilizer and early maturity, but from the qualitative point of view, Darab 14 produced higher percentage of oil.
Effect of Nitrogen Fertilizer Levels and Their Application Time on Yield and Some Agronomic Traits of Rapeseed (cv. Hyola 401) in Winter Cultivation in Guilan  [cached]
M. Rabiee,M. Kavoosi,P. Tousi Kehal
Journal of Science and Technology of Agriculture and Natural Resources , 2012,
Abstract: To determine the proper nitrogen fertilizer rates and its application times for achieving high grain and oil yields of rapeseed cultivar, Hyola 401, a research was carried out in paddy fields of Rice Research Institute of Iran in Rasht during two cropping seasons. A factorial experiment was conducted in a completely randomized block design with three replications. The experimental factors were pure nitrogen fertilizer rate at five levels of 0, 60, 120, 180 and 240 Kg ha-1 and fertilizer application times at five levels of all fertilizer at planting; 1/3 at planting + 2/3 in stem elongation; 1/3 at planting + 1/3 in stem elongation + 1/3 before flowering; 1/3 in 3-4 leaf stages + 1/3 in stem elongation +1/3 before flowering; 1/4 at planting + 1/4 in 3-4 leaf stages + 1/4 in stem elongation + 1/4 before flowering. The results of statistical analyses showed that from amony nitrogen rates, application of 240 Kg N ha-1 and 180 Kg N ha-1 with average production of 2505 Kg ha-1 and 2596 Kg ha-1 respectively showed the highest grain yield and were in the same group. of Nitrogen application times, application of 1/3 at planting + 1/3 in stem elongation + 1/3 before flowering had the highest grain and oil yields with average of 2155.3 Kg ha-1 and 9865 Kg ha-1, respectively. Maximum oil percentage was observed in control treatment (without N-fertilizer application) and the highest oil yield was obtained for nitrogen rates of 180 and 240 Kg ha-1. Also, the highest growth period was observed for the treatment of 240 Kg nitrogen with 206.3 days. The results showed that nonsignificant difference exists between the nitrogen rates of 180 and 240 Kg ha-1 in grain and oil yields. Therefore, the rate of 180 Kg ha-1 is recomended due to less fertilizer consumption and prevention of destructive effect on the environment
Grain Yield and Economic Effect of NP Fertilizers Application on Dryland Barley  [PDF]
Aslam Khan,Mir Azam,Munir Khan
Pakistan Journal of Biological Sciences , 2000,
Abstract: Barley (Hordeum vulgare L.) is an important cereal used as feed and forage crop in Pakistan. Information on the economical dose of NP fertilizer application on barley are limited. The objective of this study was to determine the agronomic and economic effects of NP fertilizers on barley production under dryland conditions. The study was conducted at Malakandher Farm of the Agriculture University Peshawar, during 1991-92, in a randomize complete block design with 4 replications. Fertilizer treatments were: 23-0, 46-0, 69-0, 23-23, 46-23, 69-23, 23-46, 46-46, 69-46, 23-69, 46-69, 69-69 of N P2O5 kg ha-1 respectively vs control (0-0). Barley cultivar Frontier 87 was sown 13, Nov. 1991 in 6 rows 5m long 30cm apart. The results on grain yield revealed that maximum grain yield of 2995 kg ha-1 was harvested from 69-69 NP2O5 kg ha-1 treatment, and the lowest grain yield of 507 kg/ha was obtained from control treatment fertilizer applied plots significantly increased grain yield as compared to control. From the economic analysis, a maximum marginal rate of return (MRR) of 5460 per cent was obtained from 23-23 NP2O5 kg ha-1 fertilizer application, followed by 46-46 NP2O5 kg ha-1 fertilizer treated plot with 5210 per cent MRR suggesting their use to farmers under conditions similar to those of this study. More research is needed to conclude valid recommendations for barley growers in different agroecological zones of the Northwest Frontier Province (NWFP) of Pakistan.
Agronomic Efficiency of Azospirillum brasilense in Physiological Parameters and Yield Components in Wheat Crop  [PDF]
Gleberson G. Piccinin,Lilian G. de M. Dan,Alessandro de L.E. Braccini,Daiane de C. Mariano
Journal of Agronomy , 2011,
Abstract: Inoculation of seeds with bacteria of the genus Azospirillum have been held in some grasses but with results still not widespread in the wheat crop in Brazil and worldwide. Given the above, the purpose of this study was to evaluate the agronomic efficiency of Azospirillum brasilense in physiological parameters and yield components of wheat under reduced nitrogen fertilization. In this context, we conducted two experiments, experiment 1: Maringa, PR and experiment 2: Alto Piquiri, PR, in randomized block design with four replicates using a wheat cultivar CD 150. The treatments consisted in the use of nitrogen fertilizer (control, 50 and 100 kg ha-1) associated with inoculation of seeds with bacteria of the species Azospirillum brasilense in liquid form, in different doses (50, 100, 150 and 200 mL of Azospirillum). The results obtained in two experiments showed that the use of half level of nitrogen associated with the inoculation of seeds with Azospirillum brasilense promoted positive results on the agronomic performance and productivity of wheat.
Barley cultivar BRS Greta  [PDF]
Euclydes Minella,Gerardo Arias,Marcio Só e Silva,Luiz Eichelberger
Crop Breeding and Applied Biotechnology , 2007,
Abstract: BRS Greta is a short, stiff-strawed, two-rowed spring barley cultivar registered by Embrapa Trigo in 2006 forcommercial production in southern Brazil. It combines short straw with high grain yield and kernel plumpness, diseaseresistance (to net blotch) and acceptable malting quality. It is well-adapted to the major barley production regions of southernBrazil.
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