scholarly journals Response of Different Sugar Beet Cultivars to Nitrogen Fertilizer Rates under the Arid Land Conditions

2019 ◽  
Vol 28 (1) ◽  
pp. 3-10
Author(s):  
Fathy S. El-Nakhlawy Fathy S. El-Nakhlawy
Keyword(s):  
Saudi Arabia ◽  
Sugar Beet ◽  
Nitrogen Fertilizer ◽  
Yield Components ◽  
Research Station ◽  
Root Yield ◽  
Fertilizer Rate ◽  
Nitrogen Fertilizer Rate ◽  
King Abdulaziz University ◽  
Fertilizer Rates

This study was conducted during 2016-2018 at the Agriculture Research Station of King Abdulaziz University at Hada Al-Sham, Saudi Arabia. The study aimed to evaluate three sugar beet cultivars (Farida, Dita and Heros) under three nitrogen fertilizer rates (100, 200 and 300 kg N/ha). As nitrogen fertilizer rate increased root yield, yield components, sucrose (%) and yield significantly increased in both seasons. Fresh root yield under 300 kg N/ha was the highest in both seasons. Farida cv. was the highest in root yield (60.62 t/ha and 97.00 t/ha) and sucrose yield (4.15 and 6.95 t/ha) in both seasons, respectively.

scholarly journals Effects of Nitrogen Fertilizer Rate and Inter-row Spacing on Yield and Yield Components of Teff [Eragrostis teff (Zucc.) Trotter] in Limo District, Southern Ethiopia

2019 ◽  
pp. 1-12 ◽  
Author(s):  
Tamirat Wato
Keyword(s):  
Nitrogen Fertilizer ◽  
Yield Components ◽  
Biomass Yield ◽  
Southern Ethiopia ◽  
Row Spacing ◽  
Fertilizer Rate ◽  
Yield Attributes ◽  
Yield And Yield Components ◽  
Nitrogen Fertilizer Rate ◽  
Fertilizer Rates

Teff [Eragrostis tef (Zucc.) Trotter] is the main staple food of Ethiopia. It ranks the first among cereals in the country in area coverage and second in the production volume; however, its productivity is almost stagnant. The Quncho (Dz-Cr-387) teff variety was sown during the main cropping season of 2017 at the Limo District, Southern Ethiopia. The objective of this research was to study the effect of four nitrogen fertilizer rates (0, 32.5, 65 and 97.5 kg N/ha) and three inter-row spacings (15, 20 and 25 cm), to evaluate the effects on yield and yield components of teff and to identify the economically appropriate nitrogen rates and inter-row spacing that maximize the yield of teff. A factorial experiment was laid out in Randomized Complete Block Design (RCBD) with 12 treatment combinations and three replications. Phenological and yield-related parameters were measured. The main effects of N rate and inter-row spacing showed significant differences (P≤0.05) for all yield and yield components. The effects of N rate by inter-row spacing interaction were not significant for some traits except for the lodging index, biomass yield, grain yield, and straw yield and harvest index. Application of N rate at 97.5 kg/ha and inter-row spacing with 25 cm significantly (P≤0.01) increased grain yield of teff. Moreover, both N fertilizer rates and wider inter-row spacing increased the magnitudes of the important yield attributes including plant height, panicle length, number of effective tillers per plant, thousand seed weight, biomass yield and straw yield significantly (P≤0.01) and also inter-row spacing increased the magnitudes of important yield attributes significance (P≤0.05). From the results of the study, it is possible to conclude that increased application of nitrogen fertilizer rate and row spacing improves yield and yield components of teff. Therefore, the application of 97.5 kg N/ha and inter-row spacing of 25 cm gave maximum yield which can be recommended for the study area.

scholarly journals Effects of Manure History and Nitrogen Fertilizer Rate on Sugar Beet Production in the Northwest US

cftm ◽  
2018 ◽  
Vol 4 (1) ◽  
pp. 1-9
Author(s):  
David D. Tarkalson ◽  
David L. Bjorneberg ◽  
Rick D. Lentz
Keyword(s):  
Sugar Beet ◽  
Nitrogen Fertilizer ◽  
Fertilizer Rate ◽  
Nitrogen Fertilizer Rate

scholarly journals Influence of Plant Density and Nitrogen Fertilizer Rates on Yield and Yield Components of Beetroot (Beta vulgaris L.)

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Zerihun Sinta ◽  
Gezahegn Garo
Keyword(s):  
Beta Vulgaris ◽  
Nitrogen Fertilizer ◽  
Yield Components ◽  
Plant Density ◽  
Production Costs ◽  
Root Yield ◽  
Marginal Rate ◽  
Yield And Yield Components ◽  
Plant Densities ◽  
Fertilizer Rates

Ethiopia is endowed with diverse agroecologies suitable for the production of tropical, subtropical, and temperate vegetables. Agronomic practices such as plant density and fertilizer management are known to affect the crop environment, which influences the growth and ultimately the yield. So far limited research has been done on plant density determination and rate of nitrogen fertilizer in Ethiopia in general and the study area in particular. Thus, this experiment was carried out to evaluate the influence of plant density and nitrogen fertilizer rates on the yield and yield components of beetroot (Beta vulgaris L.). Four plant densities (133 333, 100 000, 80 000, and 66 666 plants per hectare) and four nitrogen (N) fertilizer rates (0, 46, 92, and 138 kg N ha−1) were arranged in a factorial combination in a randomized complete block design with three replications. The results revealed that the main and interaction effects of plant density and nitrogen fertilizer rates on total root yield, root length, root fresh weight, root diameter, and total soluble solute of beetroot were significant. The highest root yield of beetroot was achieved from the combination of 66 666, 80 000, and 10 0000 plant ha−1 with 92 kg N ha−1, whereas the lowest root yield of beet was obtained from the combination of 0 kg N ha−1 with a planting density of 133 333 plants ha−1. The economic analysis showed that higher net benefit and marginal rate of return were obtained from the application of 92 kg N ha−1 with plant densities of 66 666 plants ha−1. In order to prevent excessive production costs, the use of 66 666 plants ha−1 combined with the application of 92 kg N ha−1 is recommended.

scholarly journals Influence of Nitrogen on Potato Productivity and Nutrient Use Efficiency

2013 ◽  
Vol 67 (3) ◽  
pp. 247-253 ◽  
Author(s):  
Antons Ruža ◽  
Ilze Skrabule ◽  
Aija Vaivode
Keyword(s):  
Nitrogen Content ◽  
Nitrogen Fertilizer ◽  
Potato Crop ◽  
Nutrient Use Efficiency ◽  
Potato Yield ◽  
Fertilizer Rate ◽  
Utilization Coefficient ◽  
N Utilization ◽  
Nitrogen Fertilizer Rate ◽  
Fertilizer Rates

Yield and quality of potato depend on nutrient availability in soil, especially regarding nitrogen. Nitrogen (N) is a very dynamic plant nutrient and its uncontrolled application can considerably raise the price of agricultural production. If N is insufficiently utilised by plants environmental pollution can occur. The aim of the study was to investigate efficiency of nitrogen fertiliser use by potato. The field trials were carried out at the State Priekuïi Plant Breeding Institute from 2009 till 2012. Nine fertilisation variants were applied: no fertilisation; PK dose to provide potato yield of 40 t ha-1; and the remaining seven variants with a PK dose plus plus increasing N amount from 30 to 210 kg ha-1. The results of the four-year experiment years indicated that an increase in nitrogen fertilizer rate up to N120 kg ha-1 increased the potato yield. Nitrogen fertilizer rates should be applied depending on potato variety and planned use of the grown potato crop. Tuber nitrogen content increased with nitrogen fertilizer level from 1.09% in the treatment N0PK up to 1.53% in treatment N120, and practically remained at that level in treatments with higher N application levels. Nitrogen content in potato foliage was twice as high as that in tubers and continuously increased with the N amount applied, and particularly with higher nitrogen fertilizer rates of N150-210. In regard only to tuber yield, the N utilization coefficient at a nitrogen fertilizer rate up to N120 was on average 0.60. A further increase in nitrogen rate reduced the N utilization coefficient with each successive step.

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