scholarly journals The Effect of Different Rates of Nitrogen Fertilizer and Cow Dung on Yield and Yield Components of Maize Varieties (Zea mays L.) in Mubi, Adamawa State, Nigeria

2020 ◽  
pp. 1-8
Author(s):  
Iliyasu Audu
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Nitrogen Fertilizer ◽  
Field Experiments ◽  
Zea Mays L ◽  
Cow Dung ◽  
State University ◽  
Maize Varieties ◽  
Cropping Seasons ◽  
Nitrogen Rates

Field experiments to study the performance of maize varieties (Zea mays L.) under different rates of nitrogen fertilizer and cow dung in Mubi, Adamawa State, Nigeria were conducted in 2014 and 2015 cropping seasons at the Food and Agricultural Organization/Tree Crops Plantation (FAO/TCP) Farm of the Faculty of Agriculture, Adamawa State University Mubi. A split plot design was adopted for the study with two maize varieties assigned to the main plots and nitrogen with cow dung assigned to the subplots in a factorial combination. Nitrogen rates of 0, 60 and 120 kg N ha-1 and cow dung 0, 1 and 2 ton ha-1 were used. Data were collected on number of cobs per plant, cob length, 100 grain weight and grain yield per hectare. Data collected were subjected to analysis of variance using SAS system for windows 9.2 version 2005 and treatment means were separated using Duncan Multiple Range Test. Result showed that the effect of nitrogen fertilizer on the yield and yield parameters increased significantly with the use of 120 kg N per ha-1 recording the highest for cob length (17.68 cm) 100 grain weighs (32.89 g) and grain yield (5658.3 kg). The control plot produced the least. Application of 2 ton ha-1 cow dung exhibited the highest yield. there was an interaction of variety with nitrogen on cob length and grain yield. Application of 120 kg N ha-1 significantly increased the yield of Quality Protein Maize (QPM) along with 2 ton ha-1 cow dung.

scholarly journals Responses of IPR Campos Gerais and BRS Estilo bean cultivars to different nitrogen fertilizer rates in corn (Zea mays L.) succession

2021 ◽  
Vol 10 (8) ◽  
pp. e55010817808
Author(s):  
Djalma Cesar Clock ◽  
Gislaine Gabardo ◽  
Giovani Mansani de Araujo Avila ◽  
Osmair Silva de Lima Junior
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Common Bean ◽  
Nitrogen Fertilizer ◽  
Yield Components ◽  
Zea Mays L ◽  
Bean Plant ◽  
The Common ◽  
Nitrogen Rates ◽  
Fertilizer Rates

Among the nutrients, nitrogen (N) is the element required in greater quantity by the bean plant. Depending on the cultivar, it has greater or lesser N-fixing capacity. The aim of this work was to evaluate the performance of two common bean cultivars under nitrogen topdressing in corn succession, on yield components and yield. The experiment was carried out in randomized blocks in a 2x5 factorial scheme, the first factor being the common bean cultivars (IPR Campos Gerais and BRS Estilo) and the second factor the nitrogen rates (0, 30, 60, 90 and 120 kg ha- 1), with four repetitions. At harvest, plants were collected in one meter, in the useful area of ​​each subplot to determine: number of plants per meter; number of pods/plant; number of grains/plant; number of grains/pods; mass of a thousand grains and productivity. The cultivars differed regarding the number of pods per plant, grains per plant and yield, but they were equivalent for the number of plants per meter, grains per pod and mass of a thousand grains. Comparing the production component number of pods per plant and grain yield, it is concluded that the cultivar that produced the highest number of pods per plant and showed the highest yield was BRS Estilo. There were differences between the treatments for the two cultivars, only in the yield obtained. The highest yield averages were obtained in treatments with doses above 60 kg ha-1 of N.

scholarly journals Growth and Yield Stability of Maize Varieties (Zea mays L.) as Affected by Different Rates of Nitrogen Fertilizer and Cow Dung in Mubi, Adamawa State, Nigeria

2020 ◽  
pp. 94-103
Author(s):  
I. Audu ◽  
R. Idris
Keyword(s):  
Grain Yield ◽  
Leaf Area Index ◽  
Leaf Area ◽  
Plant Height ◽  
Nitrogen Fertilizer ◽  
Zea Mays L ◽  
Growth And Yield ◽  
Cow Dung ◽  
Area Index ◽  
Maize Varieties

A field experiment to study the growth and yield stability of maize varieties (Zea mays L.) to different rates of nitrogen fertilizer and cow dung in Mubi Adamawa State, Nigeria was conducted in 2014 and 2015 cropping seasons at the Food and Agricultural Organization/Tree crops Plantation (FAO/TCP) Farm of Faculty of Agriculture, Adamawa State University Mubi. Two maize varieties; viz. Quality Protein Maize (QPM) and Extra Early White (EEW) were selected for sowing. They were assigned to the main plots and nitrogen with cow dung assigned to the subplots in a factorial combination with nitrogen at the rates of 0, 60 and 120 kg N ha-1 and cow dung at 0, 1- and 2-ton ha-1 in split plot design. Data were collected on plant height, leaf area per plant, leaf area index and grain yield per hectare. Data collected were subjected to analysis of variance and treatment means were separated using Duncan Multiple Range Test. The result showed that EEW had the highest plant height (190.77 cm), higher leaf area per plant (535.6 cm2) and leaf area index (0.40 cm) than QPM. The effect of nitrogen fertilizer on the growth and yield parameters increased as the nitrogen fertilizer was increased. 120kg N ha-1 gave the highest plant height (195.68 cm) and grain yield (5658.3 kg). The control plot produced the least; 164.77 cm (plant height) and 2662.50 kg ha-1 (grain yield). Application of 1ton ha-1 cow dung exhibited the highest plant height, (95.00 cm), leaf area per plant (518.91 cm2) and leaf area index (0.37 cm). There was an interaction of variety with nitrogen on plant height and grain yield. High interaction of variety with cow dung on plant height and leaf area per plant was recorded. There was an interaction of nitrogen with cow dung on plant height, leaf area per plant and leaf area index. However, there was an interaction of variety with nitrogen and cow dung on plant height, leaf area per plant and leaf area index. Application of 120 kg N ha-1 significantly increased the yield of QPM maize along with 2-ton ha-1 of cow dung.

scholarly journals Effect of nitrogen fertilization on metabolisms of essential and non-essential amino acids in field-grown grain maize (Zea mays L.)

2010 ◽  
Vol 56 (No. 12) ◽  
pp. 574-579 ◽  
Author(s):  
T. Lošák ◽  
J. Hlušek ◽  
R. Filipčík ◽  
L. Pospíšilová ◽  
J. Maňásek ◽  
...  
Keyword(s):  
Amino Acids ◽  
Zea Mays ◽  
Field Experiments ◽  
Zea Mays L ◽  
Tricarboxylic Acid Cycle ◽  
Essential Amino Acids ◽  
Isoleucine Leucine ◽  
N Dose ◽  
Limiting Amino Acid ◽  
Nitrogen Rates

In two-year field experiments, nitrogen (N) in the form of urea (0, 120 and 240 kg N/ha) was applied to grain maize (Zea mays L.) hybrid KWS 2376. The two-year mean content of total grain N at harvest was 1.54%. The highest N dose reduced most of the 17 amino acids (AA) analysed in the grain compared with the other treatments. Possible reasons for this could be an adverse effect on the tricarboxylic acid cycle or deficiency of carbon skeletons for the assimilation of NH<sub>4</sub><sup>+</sup> into amides and amino acids. The content of the limiting amino acid lysine was not influenced by N fertilisation, with a mean two-year content of 2.02 mg/g DM. Taking into account the differences in fertilisation, the effect of the year was seen in the maximal accumulation of amino acids serine, proline, methionine, threonine, arginine and lysine. Increasing rates of nitrogen reduced the accumulation of asparagine and glycine, and, on the contrary, increased the accumulation of tyrosine. Nitrogen rates have a significant effect on the maximal accumulation of valine, isoleucine, leucine, phenylalanine, histidine, cysteine and alanine and appeared as early as after the first increased rate of nitrogen (120 kg N/ha).

Bromoxynil tolerance during the seedling phase is associated with genetic grain yield improvement in maize

1991 ◽  
Vol 71 (4) ◽  
pp. 1021-1027 ◽  
Author(s):  
M. Tollenaar ◽  
M. Mihajlovic
Keyword(s):  
Zea Mays ◽  
Chlorophyll Fluorescence ◽  
Grain Yield ◽  
Stress Tolerance ◽  
Field Experiments ◽  
Zea Mays L ◽  
Environmental Stresses ◽  
Yield Improvement ◽  
Maize Hybrids ◽  
Highly Correlated

Genetic grain yield improvement of maize (Zea mays L.) in Ontario during the past three decades can be attributed, in part, to increased tolerance to environmental stresses. We have observed a differential response of field-grown old and new hybrids after application of the photosystem II inhibiting herbicide bromoxynil (4-hydroxy-3,5-dibromobenzonitrile). Studies were conducted to test whether tolerance to bromoxynil is associated with stress tolerance and grain yield in maize hybrids representing three decades of yield improvement in Ontario. Experiments were carried out with seedlings of eight maize hybrids grown in pots in controlled-environment growth cabinets and, in one experiment, with seedlings grown in pots outside during the months of July and August at Guelph, Ontario. Bromoxynil was applied to the youngest fully-expanded leaf of plants at the 6- to 8-leaf stage and chlorophyll fluorescence of the treated leaves was measured in the 2- to 24-h period after bomoxynil application. Results showed that the chlorophyll fluorescence ratio Fv/Fm, an indicator of photosynthetic efficiency, declined after bromoxynil application until 4 h after application and, subsequently, recovered slightly during the next 20 h. Large differences in the Fv/Fm ratio were apparent among hybrids in the response to bromoxynil. The Fv/Fm ratio was significantly higher for hybrids released in the 1980s than for hybrids released in the 1970s, and the Fv/Fm ratio of the latter group was significantly higher than that of the four oldest hybrids. Chlorophyll fluorescence ratios Fv/Fm after bromoxynil application in the seedling phase were highly correlated with grain yield of the hybrids in field experiments conducted during 1987 and 1988 (r = 0.91). Results of this study support the contention that maize genotypes that are less sensitive to bromoxynil are less susceptible to environmental stresses. Key words: Zea mays L., stress tolerance, bromoxynil, chlorophyll fluorescence, Fv/Fm ratio, detoxifying agents

scholarly journals Nitrogen Time of Application Impact on Productivity, Water Use Efficiency and Agronomic Efficiency of Maize in a Semi-arid Environment

2018 ◽  
Vol 10 (8) ◽  
pp. 72
Author(s):  
S. Lamptey ◽  
Lingling Li ◽  
Junhong Xie
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Water Use Efficiency ◽  
Water Use ◽  
Field Experiments ◽  
Zea Mays L ◽  
Block Design ◽  
Limiting Factor ◽  
Time Of Application ◽  
Use Efficiency

Water is one of the most important limiting factor of rainfed continuous maize (Zea mays L.) cropping systems in northwest of China. A three continuous year field experiments were conducted to study the influence of different nitrogen time of application on grain yield and water use efficiency of maize (Zea mays L.) in the Western Loess plateau. The experiment was laid in a randomized complete block design with two treatments and three replicates. Treatments were; (one-third application of N at sowing + two-third application at pre-flowering) and (one-third application of N at sowing + one-third pre-flowering + one-third at milking) as T1 and T2 respectively. The results showed that, T1 significantly increased grain yield by 9% in 2014 and 2016; and WUE by 11% in 2016 compared to T2. T1 increased AE by 43% compared to T2. Our results indicate that ⅓ application of Nitrogen at sowing and ⅔ application of Nitrogen at pre–flowering (T1) for maize is more appropriate for sustainable maize production in terms of satisfactory grain-N recoveries and low environmental losses of N fertilizer.

scholarly journals Performance of Maize (Zea mays [L.]) as Influenced by Row Arrangement and Cow dung Rates Grown in Intercrop with Watermelon (Citrullus lanatus [L.]) in Sudan Savanna

2020 ◽  
pp. 46-51
Author(s):  
I. J. Dantata ◽  
B. K. Adam ◽  
B. H. Kabura
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Zea Mays L ◽  
Citrullus Lanatus ◽  
Field Trials ◽  
Cow Dung ◽  
Maize Grain Yield ◽  
Maize Grain ◽  
Sudan Savanna ◽  
Plot Design

Field trials were carried out at the Teaching and Research Farm of Faculty of Agriculture, University of Maiduguri, Borno State, Nigeria during the 2014 and 2015 rainy seasons to study the performance of maize in maize/watermelon intercrop under varied row arrangements and cow dung rates in a Sudan Savanna Agro-ecology. The treatments consisted of factorial combinations of three row arrangements of maize: watermelon (1:1,1:2 and 2:1) and five levels of cow dung rates (0, 5, 10, 15 and 20t per ha) laid out in a split plot design and replicated three times. Cow dung was assigned to the main plots while row arrangements were assigned to the sub plots. The parameters of maize studied were: number of cobs per plant, cob length, cob diameter, 100 grain weight and grain yield per ha. The results showed that 1:2 row arrangement gave significantly greater cob diameter of maize. While 2:1 row arrangement gave significantly higher maize grain yield per ha. Application of 10t cow dung per ha to the mixture was found to be optimum for the maize grain yield per ha. The interaction or combination of 2:1 row arrangement and 10t cow dung per ha was optimum for the grain yield per ha. Based on the results of the present study, 2:1 row arrangement with application of 10t cow dung per ha should be adopted for growing of maize in intercrop with watermelon in the Sudan Savanna environment.

scholarly journals Productivity of maize (Zea mays L.) as affected by varieties and sowing dates

2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Dil Bahadur Gurung ◽  
Balram Bhandari ◽  
Jiban Shrestha ◽  
Mahendra Prasad Tripathi
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Research Program ◽  
Zea Mays L ◽  
Sowing Date ◽  
Research Field ◽  
Yield Potential ◽  
Grain Production ◽  
Sowing Dates ◽  
Maize Varieties

Genotypic yield potential of maize varieties is greatly affected by sowing dates. In order to investigate the effects of sowing dates and varieties on the grain yield of maize, the field experiment was carried out at research field of National Maize Research Program (NMRP), Rampur, Chitwan, Nepal from April 2009 to March 2010.  Three varieties namely Rampur Composite, Arun-2 and Gaurav were sown at every week. The results of experiment showed that interaction effect of variety and sowing date on grain yield of maize was significant. Rampur Composite produced highest grain yield (6.1 t/ha) in August and lowest yield (2.6 t/ha) in May. Similarly Arun-2 produced highest yield (4.6 t/ha) in August and lowest yield (2.1 t/ha) in May. Gaurav produced highest grain yield (5.1 t/ha) in September followed by 4.9, 4.8 and 4.6 t/ha in February, July and August respectively and lowest yield (1.5 t/ha) in November. The sowing date was highly significant on grain production. The highest grain production was 5.1 t/ha in August followed by in February (4.9 t/ha), September (4.6 t/ha) and March (4.4 t/ha) respectively. The lowest grain yield was produced in May (2.4 t/ha). Therefore it was concluded that August planting was best for higher grain production of maize varieties (Rampur Composite, Arun-2 and Gaurav) in terai region of Nepal.

INFLUENCE OF TIME OF NITROGEN SECOND DOSE FERTILIZATION MAIZE (Zea mays L.) VARIETIES IN NORTHERN GUINEA SAVANNAH OF NIGERIA

2021 ◽  
Vol 4 (4) ◽  
pp. 183-190
Author(s):  
K. M. Ladan ◽  
A. H. Hassan
Keyword(s):  
Grain Yield ◽  
Field Experiments ◽  
Zea Mays L ◽  
Agricultural Research ◽  
Block Design ◽  
Fertilizer Application ◽  
Maize Varieties ◽  
Randomized Complete Block Design ◽  
Application Data ◽  
Maize Grain

The field trial was carried out to evaluate the effect of timing nitrogen second dose fertilization on the grain yield and yield components of some improved maize varieties. The field experiments was conducted at the Institute for Agricultural Research IAR-ABU Research Farm Samaru – Zaria and Military Cantonment Farm Jaji – Nigeria. Treatments consist of three maize varieties (SAMMAZ 14, SAMMAZ 15 and SAMMAZ 16) and six timings of nitrogen second dose of fertilizer application. Data were recorded on grain yield, number of cobs /plant, number of grain /row, cob(ear) diameter, cob(ear) weight and 100 grain weight. Treatments were laid out in a randomized complete block design (RCBD) with three replications. SAMMAZ 16 produced significantly higher grain yield and recorded superior yield characters over SAMMAZ 14 and 15. The results further showed that time of nitrogen second dose application 6 WAS outperformed other timings evaluated at both location. The study identified. SAMMAZ 16 and time 6 WAS appeared to be the option for increased maize grain yield in the study area

scholarly journals Influence of Detopping on Fodder, Grain Yield and Economics of Rainfed Maize (Zea mays L.)

2020 ◽  
pp. 136-142
Author(s):  
M. Mohamed Amanullah
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Field Experiments ◽  
Zea Mays L ◽  
Block Design ◽  
Research Station ◽  
Randomized Block Design ◽  
Green Fodder ◽  
Fodder Yield ◽  
Three Stages

Field experiments were conducted at Maize Research Station, Vagarai, Palani Taluk, Tamilnadu during rabi 2018-19 and 2019-20 to find out the influence of detopping on green fodder, grain yield and economics of rainfed maize (Zea mays L.). The experiments were laid out in a factorial randomized block design with three stages and three heights of detopping. Three stages of detopping viz., D1-10 days after 50% silking, D2 -20 days after 50% silking and D3-30 days after 50% silking were tested with three heights of detopping viz., L1 - detopping tassel + 2 leaves, L2 - detopping tassel + 4 leaves and L3 - detopping tassel + 6 leaves with a control (No detopping) replicated thrice. The results of the experiments revealed that detopping 10 days after 50% silking with tassel + 6 leaves recorded higher green fodder yield Regarding grain yield, among the days of detopping, detopping 30 days after 50% silking and detopping 20 days after 50% silking recorded higher yield which were comparable with control (no detopping) (6460 kg / ha). Among the number of leaves, detopping tassel + two leaves recorded higher yield followed by tassel + 4 leaves and both were comparable. Among the treatment combinations, higher grain yield was recorded under detopping 20 days after 50% silking with tassel + 4 leaves followed by detopping 30 days after 50% silking with tassel + 4 leaves and detopping 30 days after 50% silking with tassel + 2 leaves. Regarding economics, higher net return and BC ratio were recorded under the treatment combination of detopping 20 days after 50% silking with tassel + 4 leaves followed by control and detopping 30 days after 50% silking with tassel + 4 leaves.

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