scholarly journals Growth, yield, and quality responses of turmeric (Curcuma longa L.) to nitrogen fertilizer rate and timing of its application

2019 ◽  
Vol 72 (3) ◽  
Author(s):  
Behailu Mekonnen ◽  
Weyessa Garedew
Keyword(s):  
Curcuma Longa ◽  
Growth Yield ◽  
Application Rate ◽  
Split Application ◽  
Time Of Application ◽  
Southwestern Ethiopia ◽  
Yield And Quality ◽  
Nitrogen Fertilizer Rate ◽  
N Rates

Soil fertility decline is one of the factors that result in low productivity of turmeric (<em>Curcuma longa</em>, Zingiberaceae Lindl.,) in Ethiopia. An experiment was conducted to determine the effects of N rate and time of application on growth, yield, and quality of turmeric crops in Ethiopia. The trial consisted of five N rates: 0, 46, 69, 92, 115 kg ha<sup>−1</sup>, and five split application times: full dose at emergence, two times (1/2), three times (1/3), four times (1/4), and five times (1/5) equally split applications, arranged in a split plot design with three replications. Plant heights, tiller number per plant, pseudo-stem girth, mother and finger rhizome numbers and weights, fresh rhizome yield, oleoresin and essential oil contents – all were significantly affected by the interaction effects of N rate and time of application. The three times split application of 115 kg N ha<sup>−1</sup> produced higher values of these crop characteristics. This application rate also produced a better yield and quality than did two times of application, the most commonly used practice. Therefore, turmeric producers in southwestern Ethiopia should apply 115 kg N ha<sup>−1</sup> in three equally split applications to improve turmeric yield and quality.

Effect of Nitrogen Fertilization on Yield and Quality of Endive

2009 ◽  
Vol 70 (1) ◽  
pp. 193-201 ◽  
Author(s):  
Katarzyna Adamczewska-Sowińska ◽  
Cecylia Miłowana Uklańska
Keyword(s):  
Nitrogen Fertilization ◽  
Nutritional Value ◽  
Growth Yield ◽  
Dry Weight ◽  
Application Rate ◽  
Marketable Yield ◽  
Nitrate Accumulation ◽  
Yield And Quality ◽  
Nitrogen Application Rate

Effect of Nitrogen Fertilization on Yield and Quality of EndiveThe aim of the experiments carried out in 2007-2008 was to assess the effect of various nitrogen doses on the growth, yield and nutritional value of two endive cultivars Cigal and Excel. The effects of two types of fertilizers were compared: that of ammonium nitrate with that of the product Entec-26. On the basis of the results obtained, it was shown that endive cv. Excel produced a marketable yield that was on average by 35.5% higher than that of the cultivar Cigal. A significantly higher marketable yield of endive was obtained by fertilizing with a single dose of the fertilizer Entec-26, particularly at the rates of 90 and 135 kg N·ha-1, and also 180 kg N·ha-1. The experiments also revealed a significant effect of the fertilization method and nitrogen application rate on the biological value of the endive cultivars under evaluation. The cultivar Excel was characterized by a higher degree of nitrate accumulation, whereas the cultivar Cigal had a higher vitamin C content, dry weight, and chlorophyll content.

The effect of quantity, source and time of application of nitrogen fertilizers on the yield and quality of Andropogon gayanus at Shika, Nigeria

1975 ◽  
Vol 84 (3) ◽  
pp. 529-535 ◽  
Author(s):  
R. J. Haggar
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Calcium Nitrate ◽  
Application Rate ◽  
Nitrogen Fertilizers ◽  
Time Of Application ◽  
Yield And Quality ◽  
Andropogon Gayanus

SUMMARYExperiments made at Shika, Nigeria, over a period of 3 years showed that the drymatter response of Andropogon gayanus to applied N was curvilinear over the range 0–896 kg N/ha, with maximum yields being obtained at an application rate of about 500 kg N/ha. However, the highest return of dry matter per unit of fertilizer applied (14·4 kg D.M./kg N) occurred at 28 kg N/ha and there was only a modest increase in crude-protein content as N was increased, reaching a maximum of 10·5% at the highest level of N. Also, at both high and intermediate levels of N, A. gayanus was replaced by less desirable grasses.May, the beginning of the rainy season, was found to be the most efficient time to apply N, although reasonable dry-matter responses were obtained by applying N in the dry season. ‘Nitro-chalk’ and calcium nitrate were more efficient sources of N than urea, sodium nitrate and, in the long term, ammonium sulphate.

scholarly journals Evaluation of Growth, Yield and Quality of Turmeric Genotypes (Curcuma longa L.)

2021 ◽  
Vol 8 (01) ◽  
pp. 8-15
Author(s):  
Md. Shaheeduzzaman Sagor ◽  
Md. Mokter Hossain ◽  
Tamanna Haque
Keyword(s):  
Plant Height ◽  
Dry Matter ◽  
Curcuma Longa ◽  
Block Design ◽  
Growth Yield ◽  
Flesh Color ◽  
Yield And Quality ◽  
Randomized Complete Block Design ◽  
Number Of Leaves

This study was conducted to examine growth, yield and quality performances of five turmeric genotypes. The experiment was laid out in randomized complete block design with three replications. Results showed that different genotypes significantly influenced on plant growth, yield and quality of turmeric. The highest germination (97 %), number of leaves (8.16), plant height (69.51 cm), weight of rhizome (47.06 g/plant) and yield (6.01 t/ha) was found from “Sinduri Holud” (BARI Holud-2). But this genotype scored the lowest percentage in curcumin (0.30 %) and low dry matter (22.54 %). While local genotype (“Mota Holud”) performed the lowest germination (87.57 %) and minimum plant height (53.52 cm), leaf area (127.42 cm2), number of fingers per rhizome (3.73), weight of rhizome (34.16 g/plant) and yield (4.78 t/ha). But this genotype contained the highest curcumin (2.10 %), and “Mala Holud” attained maximum dry matter (25.20%). Based on flesh color, dry matter and curcumin contents local turmeric genotypes performed superior than that of the check varieties. From the findings of this investigation, it can be concluded that local genotypes can be used in breeding program for development of high quality turmeric in Bangladesh.

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