scholarly journals Effect of Nitrogen, Phosphorus and Variety on Physiological Indices and Nutrient Composition of Livingstone Potato (Plectranthus esculentus N.E.Br.) in Gombe, Northern Guinea Savannah, Nigeria

2021 ◽  
pp. 180-188
Author(s):  
E. D. Elemi ◽  
P. O. Ukatu ◽  
G. F. Uwak ◽  
L. J. Agah
Keyword(s):  
Harvest Index ◽  
Starch Content ◽  
Block Design ◽  
High Yield ◽  
Dry Matter Accumulation ◽  
Nitrogen And Phosphorus ◽  
Genetic Trait ◽  
Physiological Indices ◽  
Four Levels ◽  
Nitrogen Phosphorus

Plectranthus esculentus N.E.Br. locally known as “rizga” is an important indigenous tuber crop in Nigeria which is currently endangered. One major factor that causes disappearance of this species, is the lower agronomic recommendations developed for growers and lack of information about nutrient contents leading to loss of interest in its cultivation. A field experiment was therefore conducted during the 2016 and 2017 rainy seasons to determine the effect of nitrogen, phosphorus and variety on physiological indices as an attempt to conserve and evaluate the potential of the crop in food security, source of income and its adaptation in the Northern Guinea Savannah of Nigeria. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Treatments consisted four levels of nitrogen and phosphorus (­0, 60, 90 and 120 kg/ha), respectively and two varieties (vat Riyom and vat Loang’at). Results from analysis of variance showed that nitrogen and phosphorus applied at 90 kg/ha significantly produced higher physiological indices in both years. Beyond this rate, there was a decline in physiological indices resulting in decrease in starch content and dry matter accumulation. Harvest index indicated a positive relationship between the proportion of the biological yield and nutrient levels. Although, varietal difference was not significant on harvest index. This is an indication that HI is purely a genetic trait as affected by environmental factors. It was therefore concluded that, for high yield of livingstone potato, soils should be treated with a moderate application rate of 90 kg/ha nitrogen and phosphorus for enhanced physiological indices which are measures of growth and productivity per unit area of land in the Northern Guinea Savanna of Nigeria.

scholarly journals Performance of Cassava (Manihot esculenta Crantz) Varieties under Different Soil Amendments

2019 ◽  
pp. 1-7
Author(s):  
Kwadwo Gyasi Santo ◽  
Joseph Sarkodie-Addo
Keyword(s):  
Starch Content ◽  
Block Design ◽  
Organic Fertilizer ◽  
Poultry Manure ◽  
Fertilizer Application ◽  
Nitrogen And Phosphorus ◽  
Manihot Esculenta Crantz ◽  
Combined Application ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

Studies were carried out at Offinso in the Ashanti Region of Ghana to assess root quality of cassava grown with application of poultry manure and NPK 15-15-15 and NPK 23-10-10 fertilizers. The experimental design was a 2 x 6 factorial, arranged in a Randomized Complete Block Design (RCBD) with three replications. The treatments consisted of two cassava varieties in combination with five inorganic and/or organic fertilizer formulations and a control with no fertilizer. The parameters measured were starch content, poundability, nitrogen, phosphorus and potassium contents of cassava roots. The data collected were subjected to analysis of variance using the Genstat Statistical package. The results of the study indicated that Bankyehemaa produced higher starch content (29.86%) than the Nkabom variety. Fertilizer application increased starch content with the combined application of poultry manure and NPK 23-10-10 treatment recording the highest treatment effect (30.40%). Both the organic and inorganic fertilizers applied increased starch content of cassava roots. Poundability was not also affected by both variety and fertilizer application. However, roots treated with NPK 15-15-15 only and poultry manure alone were very poundable (3.0). Variety significantly affected only nitrogen and phosphorus contents of cassava roots. Bankyehemaa had higher content (0.72%) of nitrogen than Nkabom, while Nkabom recorded higher content (1.05%) of phosphorus than Bankyehemaa. Generally, application of fertilizer significantly affected root contents of nitrogen, phosphorus and potassium. However, potassium and phosphorus contents were reduced by the organic fertilizer (poultry manure). The NPK 15-15-15 treatment produced higher potassium (9.37%) and phosphorus (1.36%) contents of roots than the other treatments. The highest nitrogen content of roots (0.78%) was observed in the combined application of poultry manure and NPK 23-10-10 treatment.

scholarly journals Yield and Nutritional Quality of Cabbage as Affected by Nitrogen and Phosphorus Fertilization

1970 ◽  
Vol 41 (1) ◽  
pp. 41-46
Author(s):  
KMF Haque ◽  
AA Jahangir ◽  
ME Haque ◽  
RK Mondal ◽  
MAA Jahan ◽  
...  
Keyword(s):  
Block Design ◽  
Growth Yield ◽  
Nutrient Content ◽  
Phosphorus Fertilization ◽  
Fertilizer Treatment ◽  
P Fertilization ◽  
Nitrogen And Phosphorus ◽  
Titrable Acidity ◽  
Nitrogen Phosphorus

An experiment was conducted in field condition to study the effect of nitrogen-phosphorus fertilization on growth, yield and nutrient content of cabbage. The experiment was laid out in randomize block design with three replications. The yield and yield components were maximized by N3P2 fertilizer treatment. Nutrient content of cabbage varied with fertilizer treatment. The maximum amount of reducing sugar, ascorbic acid, phosphorus were found at the highest rate of N - P fertilization whereas accumulation of titrable acidity, iron, calcium were maximum at the rate of N2P2 treatment. However pH, ash content were more or less same throughout the experiment. Bangladesh J. Sci. Ind. Res. 41(1-2), 41-46, 2006

scholarly journals THE EFFECT OF PLANT GROWTH PROMOTING RHIZOBACTERIA IN REDUCING NITROGEN AND PHOSPHORUS FERTILIZERS APPLICATION IN SUGARCANE

2021 ◽  
Vol 21 (No 1) ◽  
Author(s):  
Aghajan bahadori ◽  
Mohmmad Hossein GHarineh ◽  
Abdolmahdi Bakhshandeh ◽  
Naeimeh Enayatizamir ◽  
Alireza Shafeinia
Keyword(s):  
Plant Growth ◽  
Block Design ◽  
Plant Growth Promoting Rhizobacteria ◽  
Control Treatment ◽  
Nitrogen And Phosphorus ◽  
Simultaneous Application ◽  
Phosphorus Fertilizers ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Four Levels

This study was performed in order to investigate the effect of Plant growth-promoting rhizobacteria in reducing nitrogen and phosphorus Fertilizers Application in Sugarcane. The field experiment of this study was in the form of Split–block design with subplots in stips with four replications and three factors, including bacterial factor at four levels (control, Enterobacter cloaca, Pseudomonas putida and a combination of two types of bacteria), nitrogen factor at three levels (50, 75 and 100% recommended nitrogen for sugarcane (and phosphorus factor at three levels (50, 75 and 100% recommended phosphorus for sugarcane), was carried out in 2016-2017crop year in DC7-10 research farm of Dehkhoda sugarcane agro-industryin Ahvaz, in the southwest of Iran, on CP73-21 sugarcane variety. According to the analysis of variance tables, simple and interaction effects of the tested treatments, in the case of quantitative traits, including stalk yield, height, diameter, stalk density, percentage of nitrogen and phosphorus of leaves, chlorophyll content, LAI and HI in sugarcane were significant at the level of 1% probability. Comparison of means showed that the application of simultaneous application of growth-promoting bacteria along with the application of 75% recommended nitrogen and phosphorus for sugarcane, compared with the control treatment (application of 100% recommended nitrogen and phosphorus for sugarcane, without the use of bacteria), Was able to succeed in these traits 96.9%, 98.1%, 95.7%, 96.3%, 100.2% ,101.9%, 91.2% and 94.8%, respectively and Provide 21/9, 23/1, 20/7, 21/3, 25, 25, 16.2 and 19.8% of the nutrients of nitrogen and phosphorus for sugarcane, respectively, and is saved the same amount of nitrogen and phosphorus consumption for sugarcane. Also, regarding the sugarcane yield, the simultaneous application treatment of the tested bacteria along with the application of 100% recommended phosphorus and nitrogen for sugarcane, Compared to the control treatment

scholarly journals Influence of nitrogen and phosphorus on the growth and yield of BRRI dhan57

2016 ◽  
Vol 3 (2) ◽  
pp. 175
Author(s):  
Mahbubul Haque Imrul ◽  
Mst. Afrose Jahan ◽  
Mominul Haque Rabin ◽  
Marjana Yeasmin ◽  
Md. Abubakar Siddik ◽  
...  
Keyword(s):  
Block Design ◽  
Growth And Yield ◽  
Treatment Combination ◽  
Experiment Data ◽  
Nitrogen And Phosphorus ◽  
Randomized Complete Block Design ◽  
Biological Yield ◽  
Four Levels ◽  
1000 Grain Weight ◽  
Time Of Harvest

The field experiment was carried out during the period from July to November, 2013 at the research farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh to investigate the influence of nitrogen and phosphorus on the growth and yield of BRRI dhan57. The two factorial experiments were laid out in a Randomized Complete Block Design (RCBD) with three replications. Four levels of nitrogen N0: 0 kg N ha-1, N1: 90 kg N ha-1, N2: 120 kg N ha-1, N3: 150 kg N ha-1 and three levels of phosphorous P0: 0 kg P2O5 ha-1, P1: 25 kg P2O5 ha-1 and P2: 35 kg P2O5 ha-1 were used in this experiment. Data revealed that at 30 and 60 days after transplanting (DAT) and at the time of harvest the tallest plants were observed in the treatments N2 (120 kg N ha-1), P2 (35 kg P ha-1) and treatment combination N2P2 (120 kg N and 35 kg P ha-1) whereas, the treatments N0, P0 and treatment combination N0P0 (without N and P) showed the smallest plant height in each case, respectively. Side by side, N2,P2 treatments and N2P2 treatment combination gave the maximum effective tillers hill-1, highest length of panicle and the maximum filled grains panicle-1. The highest 1000 grain weight (20.85 g), grain yield (4.95 t ha-1), straw yield (5.39 t ha-1) and biological yield (10.34 t ha-1) were found in the treatment combination N2P2 and also found highest in each individual under N2 and P2 treatments.

scholarly journals The effects of zinc biofortification of seeds and NPK fertilizer application on the growth and yield of sesame (Sesamum indicum L.)

2021 ◽  
Vol 117 (1) ◽  
pp. 1
Author(s):  
Ehiokhilen Kevin EIFEDIYI ◽  
Grace Adejoke ILORI ◽  
Henry Emeka AHAMEFULE ◽  
Abduquadir Yusuf IMAM
Keyword(s):  
Block Design ◽  
Growth Yield ◽  
Zinc Content ◽  
Fertilizer Application ◽  
Growth And Yield ◽  
High Yield ◽  
High Zinc ◽  
Npk Fertilizer ◽  
Four Levels ◽  
Cropping Seasons

<p>Soils of the southern Guinea savanna zone of Nigeria are inherently infertile due to shortened fallow period and the continuous use of inorganic fertilizer which depletes the soil of micronutrients such as zinc over time. A field trial was carried out at the Teaching and Research Farm of the University of Ilorin, Nigeria during the 2016 and 2017 cropping seasons to evaluate the effect of zinc and NPK fertilizer on the growth, yield and zinc concentration of seeds of sesame. The experiment was laid out as a factorial fitted into a randomized complete block design (RCBD), replicated thrice. The treatment consisted of four levels of ZnSO<sub>4</sub> (0, 5, 10 and 15 kg ha<sup>-1</sup>) and four levels of NPK 15:15:15 (0, 100, 200 and 300 kg ha<sup>-1</sup>). Data collected were subjected to analysis of variance (ANOVA) and means were separated using new Duncan multiple range test at 5 % level of probability. Results obtained showed significant effects of Zn and NPK rates on plant height, number of leaves, yield per plot and yield per hectare. The application of 15 kg ha<sup>-1</sup> Zn and 300 kg ha<sup>-1</sup> (15:15:15) NPK resulted in high yield and high zinc content of seeds.</p>

scholarly journals Effect of harvest period on the quality of storage roots and protein content of the leaves in five cassava cultivars (Manihot esculenta, Crantz)

2003 ◽  
Vol 46 (2) ◽  
pp. 295-305 ◽  
Author(s):  
Edvaldo Sagrilo ◽  
Pedro Soares Vidigal Filho ◽  
Manoel Genildo Pequeno ◽  
Carlos Alberto Scapim ◽  
Maria Celeste Gonçalves Vidigal ◽  
...  
Keyword(s):  
Protein Content ◽  
Dry Matter ◽  
Starch Content ◽  
Block Design ◽  
Matter Content ◽  
Dry Matter Content ◽  
Dry Matter Accumulation ◽  
Storage Roots ◽  
Fresh Matter

The effect of harvest period on the quality of storage roots and leaves of cassava cultivars was determined in an experiment carried out in a randomized complete block design with four replications in a split plot scheme, with five cultivars in the plots and ten harvest times in the subplots. The IAC 13 cultivar had the highest rate of dry matter accumulation in the storage roots and the Mico cultivar the lowest. The period of least dry matter content in the storage roots occurred later for the Fécula Branca, Mico and IAC 14 cultivars, and the minimum starch content in the storage roots occurred later for the Fécula Branca and Mico cultivars. In general, the IAC 13, IAC 14 and Fécula Branca cultivars had higher dry matter content in the storage roots, while higher starch content in the dry and fresh matter were obtained in the Fécula Branca cultivar. The crude protein content in the leaves decreased as the plant aged.

scholarly journals Optimizing Phosphorus Application Rate and the Mixed Inoculation of Arbuscular Mycorrhizal Fungi and Phosphate-solubilizing Bacteria Can Improve the Phosphatase Activity and Organic Acid Content in Alfalfa Soil

2021 ◽  
Author(s):  
An Xiaoxia ◽  
Junying Liu ◽  
Xuanshuai Liu ◽  
Chunhui Ma ◽  
Qianbing Zhang
Keyword(s):  
Organic Matter ◽  
Phosphatase Activity ◽  
Mycorrhizal Fungi ◽  
Rhizosphere Soil ◽  
Block Design ◽  
High Yield ◽  
Phosphate Solubilizing Bacteria ◽  
High Quality ◽  
Four Levels ◽  
Phosphorus Application

Abstract Alfalfa (Medicago sativa L.) is an important high-quality legume forage, and phosphorus is an important nutrient element for high-quality and high-yield of alfalfa. This study assessed the effects bacteria and phosphorus (P) use efficiency of alfalfa soil under different P applications. In this experiment, a two-factor complete randomized block design was used. Four bacterial treatments were as follows: Funneliformis mosseae (Fm), Bacillus megaterium (Bm), double inoculation (Fm × Bm) and no inoculation bacteria (CK). There are four levels of phosphorus treatment, namely: phosphorus application 0 (P0), 50 (P1), 100 (P2), 150 mgžkg-1 (P3). There were 16 treatments in total, and each treatment was repeated 6 times. The results showed that the effects of single inoculation and mixed inoculation were significantly higher than those of noninoculation (P < 0.05). With the increase in phosphorus application, each index increased first and then decreased. The alkaline phosphatase activity (AKP) and organic matter (SOM) content in soi lincreased with the increase of cutting times, and the content of organic matter in rhizosphere soil was higher than that in non-rhizosphere soil. Principal component analysis (PCA) shows that the top three treatments were J3P2 > J3P1 > J3P3. Therefore, when (P2O5) was 100 mgžkg-1, the mixed inoculation of Fm × Bm could improve the phosphatase activity in alfalfa soil, promote the secretion of organic acids in rhizosphere soil and then improve the content of soil fertility.

scholarly journals Effect of Nitrogen and Phosphorus on the Growth and Seed Yield of Spinach

2019 ◽  
pp. 1-9
Author(s):  
Md. Rafiqul Islam ◽  
Khaleda Khatun ◽  
Tahmina Mostarin ◽  
Md. Ehsanul Haq ◽  
Md. Nahidul Islam ◽  
...  
Keyword(s):  
Seed Yield ◽  
Economic Benefit ◽  
Block Design ◽  
Mutual Effect ◽  
Germination Percentage ◽  
Seed Vigor ◽  
Cost Ratio ◽  
Nitrogen And Phosphorus ◽  
Economic Point ◽  
Four Levels

The experiment was conducted at the farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during Rabi (November 2017 to March 2018) season to find out the growth, yield and economic benefit of spinach seed as influenced by nitrogen and phosphorus. The research involved two factors. Factor A: Four levels of nitrogen; N0= 0 kg/ha N1= 27.6 kg/ha, N2=55.2 kg/ha, N3= 82.8 kg/ha, and factor B: Four levels of phosphorus; P0= 0 kg/ha; P1 = 15.84 kg/ha, P2= 31.68 kg/ha, P3= 47.52 kg/ha. There were 16 treatment combinations in the experiment and laid out in Randomized Complete Block Design (RCBD) with three replications. Quality tests of seeds were done based on the germination test (%), seed vigor test (Electrical conductivity). In case of nitrogen, the highest seed yield (1.10 t ha-1), germination percentage (87.33%) and lowest value in EC test (11.87 dS/cm) were obtained from N2, while the lowest seed yield (0.81 t ha-1), germination percentage (79.33%) and highest value in EC test ( 13.87 dS/cm) from N0. For phosphorus levels, the highest seed yield (1.05 t ha-1), germination percentage (86.58 % and) and lowest value in EC test (11.79 dS/cm) were recorded from P2, whereas the lowest seed yield (0.84 t ha-1), germination percentage (79.91%) and highest value in EC test (13.35 dS/cm) from P0. Due to mutual effect, the highest seed yield (1.30 t ha-1), germination percentage (91.33%) and lowest value in EC test (10.2 dS/cm) were noted from N2P2, whereas the lowest seed yield (0.69 t ha-1), germination percentage (72.66%) and highest value in EC test (14.83 dS/cm) from N0P0. From the economic point of view, the highest Benefit-Cost Ratio (BCR) (1.59) was found in the treatment of N2P2 and the lowest BCR (1.01) was found in the treatment of N0P0. It is apparent that the treatment combination N2P2 gave the best performance for the seed yield and economic benefit of spinach.

Photosynthetic attributes and seed yield of sunflower (Helianthus annuus L.) as influenced by different levels and ratios of nitrogen and phosphorus fertilizers

2003 ◽  
Vol 51 (2) ◽  
pp. 149-155 ◽  
Author(s):  
N. Thavaprakash ◽  
G. Senthilkumar ◽  
S. D. Sivakumar ◽  
M. Raju
Keyword(s):  
Leaf Area ◽  
Seed Yield ◽  
Dry Matter ◽  
Block Design ◽  
Research Station ◽  
Dry Matter Accumulation ◽  
Nitrogen And Phosphorus ◽  
Area Index ◽  
Green Leaves ◽  
Photosynthetic Attributes

A field experiment was conducted at the Main Research Station, University of Agricultural Sciences, Dharwad, India, on medium black soils during the kharif (wet) season of 1999. The experiment was laid out in a randomized complete block design with varying N/P ratios (0.67 to 2.00) along with a control with a constant level of potassium (60 kg ha-1). The results revealed that the number of green leaves plant-1, the dry matter accumulation in the leaves, leaf area (dm2 plant-1) and leaf area index (LAI) increased up to the flowering stage (65 DAS) and thereafter declined. In the early stages (seedling and button stages) there was no significant variation with respect to the number of green leaves plant-1 among the treatments except in the control. Similarly, leaf area and LAI did not vary at the seedling stage. Treatments receiving N/P ratios of ?1.0 or 1.0 with higher doses of nitrogen (120 kg N ha-1) gave a significantly higher number of green leaves plant-1, leaf area and LAI as compared to N/P ratios of <1.0 and the control in later stages. The dry matter accumulation in the leaves (g plant-1) differed in all the stages, but higher values were recorded in these same treatments. Thus, due to the higher number of green leaves, higher LAI and greater dry matter accumulation in the leaves, the treatments with an N/P ratio of ?1.0 or 1.0 with 120 kg N ha-1 produced higher seed yields (3188 to 3554 kg ha-1) than other N/P ratios (2761 to 3009 kg ha-1). The highest yield (3554 kg ha-1) was recorded with an N/P ratio of 1.0 in the treatment receiving 120 kg N and 120 kg P2O5 ha-1. The correlation coefficients between these photosynthetic attributes and seed yield were also positive and significant.

Study on Productivity, Quality and Profitability of Soybean (Glycine max L.) as Influenced by Fertility Levels and Enriched Compost in Typic Haplustepts Soil

2021 ◽  
Author(s):  
Abhishek . ◽  
H.S. Purohit ◽  
Gajanand Jat ◽  
R.S. Choudhary ◽  
R.H. Meena ◽  
...  
Keyword(s):  
Glycine Max ◽  
Block Design ◽  
Crop Productivity ◽  
Biological Properties ◽  
Dry Matter Accumulation ◽  
College Of Agriculture ◽  
Combined Application ◽  
Randomized Block Design ◽  
Glycine Max L ◽  
Four Levels

Background: Enriched composts supply the plant nutrients and add a sufficient amount of organic matter to the soil, which helps in improving the physical, chemical and biological properties of the soil. It helps to maintain and sustain soil fertility for enhancing crop productivity and also acts as a recess for microbes and enriches the soil with a variety of the indigenous micro-flora and fauna. Hence, the present investigation was carried out to study the effect of fertility levels and enriched compost on productivity, quality and profitability of soybean (Glycine max L.) in sub-humid southern plain and Aravalli hills region of Rajasthan. Methods: The experiment was undertaken during kharif 2018 at Rajasthan College of agriculture, Udaipur (Rajasthan) in a factorial randomized block design with three replications. The treatments were comprised of three levels of recommended dose of fertilizers (RDF) (control, 50% RDF and 100% RDF) and four levels of enriched compost (control, 2.0, 4.0 and 6.0 t ha-1). Result: The increasing fertility levels upto 100% RDF and enriched compost upto 4 t ha-1, significantly increased (P=0.05) the plant height, dry matter accumulation, number of pods per plant, number of seeds per pod, seed yield, haulm yield and protein and oil content in seed of soybean. However, the combined application of 100% RDF along with 6 t ha-1 enriched compost recorded higher seed and haulm yield. The results further revealed that the application of 100% RDF and 4 t ha-1 enriched compost significantly improved the productivity, quality and profitability of soybean under Typic Haplustepts soil.

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