scholarly journals Effect of different levels of nitrogen on growth and yield of hybrid maize (Zea mays L.) varieties

2021 ◽  
Vol 4 (2) ◽  
pp. 48-62
Author(s):  
Kripa Adhikari ◽  
Sudip Bhandari ◽  
Krishna Aryal ◽  
Mohan Mahato ◽  
Jiban Shrestha
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Growth And Yield ◽  
Maize Production ◽  
Factors Affecting ◽  
Net Returns ◽  
Maize Varieties ◽  
Maize Variety ◽  
Four Levels ◽  
Hybrid Maize

Nitrogen (N) fertilizer is considered as one of the most important factors affecting growth and grain yield of hybrid maize. This study was conducted to determine the effects of different rates of nitrogen and varieties on growth and yield of hybrid maize in Lamahi Municipality, Dang, Nepal from June to October, 2019. Three levels of hybrid maize varieties (10V10, Rajkumar F1 and NMH-731) and four levels of nitrogen (160, 180, 200 and 220 kg N ha-1) were evaluated using two factorial randomized complete block design with three replications. The results showed that grain yield and yield attributing traits of hybrid maize varieties increased with the increasing level of nitrogen from 160 to 220 kg ha-1. The application of nitrogen @ 220 kg N ha-1 produced the highest grain yield (10.07 t ha-1), cob length (16.33 cm), no of rows per cob (14.97), no of grains per row (33.37), cob diameter (4.54), thousand grain weight (276.77 g), stover yield (12.91 t ha-1), biological yield (23.00 t ha-1), harvest index (43.80), gross return (NRs. 208940 ha-1), net return (NRs.104488 ha-1) and B:C ratio (2.001). The hybrid maize variety 10V10 produced the highest grain yield (9.35 t ha-1), net returns (NRs. 91740.66 ha-1) and B:C ratio (1.91) accompanied by the highest cob length (16.25 cm), and as number of grains per row (32.35) as compared to other varieties. This study suggested that maize production can be maximized by cultivating hybrid maize variety 10V10 with the use of 220 kg N ha-1 in inner Terai region of Nepal.

scholarly journals Effects of row spacings and varieties on grain yield and economics of maize

2020 ◽  
Vol 3 (1) ◽  
pp. 209-218
Author(s):  
Saurabha Koirala ◽  
Akash Dhakal ◽  
Dhiraj Niraula ◽  
Sampurna Bartaula ◽  
Urbashi Panthi ◽  
...  
Keyword(s):  
Grain Yield ◽  
Plant Density ◽  
Block Design ◽  
Row Spacing ◽  
Plant Spacing ◽  
Thousand Grain Weight ◽  
Maize Production ◽  
Maize Varieties ◽  
Randomized Complete Block Design ◽  
Four Levels

Maize is the second most important crop of Nepal. The yield of the crop is low due to lack of appropriate plant density for the varieties. The field experiment was carried out to study the effect of different row spacings on different maize varieties at Deupur, Lamahi municipality of the dang district in province No. 5, Nepal during the rainy season from June to September, 2018. Four levels of spacings (boardcasting and three row spacings of 45, 60 and 75 cm) and two maize varieties (Rampur Composite and Arun-2) were evaluated using randomized complete block design with three replications. The highest grain yield was found in Rampur Composite and Arun-2 while they were planted with row spacing of 60 cm with plant to plant spacing of 25 cm. The highest grain yield, cob length, cob circumference, number of rows per cob, thousand grain weight  were reported when maize was planted in the  row spacing 60×25cm. Among the maize varieties, Rampur Composite produced the highest grain yield, cob length, cob circumference, number of rows per cob as compared to Arun-2. This study suggested that maize production can be maximized by cultivating maize varieties with row spacing of 60 cm with plant to plant spacing of 25 cm.

scholarly journals Yield and Growth Response of Maize (Zea mays L.) to Varietal and Nitrogen Application in the Guinea Savanna Agro-Ecology of Ghana

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Alhassan Bawa
Keyword(s):  
Grain Yield ◽  
Agronomic Traits ◽  
Growth Parameters ◽  
Block Design ◽  
Nitrogen Application ◽  
Maize Production ◽  
Guinea Savanna ◽  
Application Rates ◽  
Two Factors ◽  
Four Levels

Background and Objective. Maize is one of the oldest cultivated crops. It is the third most important cereal after wheat and rice globally. Compared to all other cereals, maize has the highest average yield per unit area. The objective of the research was to evaluate maize varietal response to different nitrogen fertilizer rates. Materials and Methods. The treatment consisted of two factors, namely six varieties of maize and four levels of nitrogen application rates. These were arranged in 6 × 4 factorial combinations and laid out using randomized complete block design (RCBD) with three replications. The data collected were subjected to combined analysis for variation in factorial experiments in RCBD using Genstat statistical package edition 18. The means were separated using Duncan’s multiple range test at a 5% probability level. Results. The study revealed that varieties, such as IWD-C3-SYN-F2 and OBATAMPA, produced the highest grain yield and growth parameters (agronomic traits) relative to other varieties. The maximum grain yield and biomass production also occurred at the nitrogen application rates of 90 and 120 kg N/ha. Conclusion. Varieties, such as IWD-C3-SYN-F2 and OBATAMPA, and N rate of 90 kg N/ha are, therefore, recommended to be used for maize production by the resource-poor farmers in the Guinea Savanna Agro-Ecology of Ghana.

scholarly journals Grain Yield of Maize Hybrids in Response to Inoculation with Azospirillum sp. under Nitrogen Limiting Conditions in Huaura, Peru

2020 ◽  
Vol 10 (1) ◽  
pp. 1
Author(s):  
Elin Teodoro-Cerna ◽  
Eroncio Mendoza-Nieto ◽  
Sergio Eduardo Contreras-Liza
Keyword(s):  
Grain Yield ◽  
Agronomic Traits ◽  
Block Design ◽  
N Fertilization ◽  
Corn Hybrids ◽  
Maize Production ◽  
Native Strain ◽  
Hybrid Corn ◽  
Nitrogen Levels ◽  
Hybrid Maize

This experiment was conducted to evaluate the effect of Azospirillum sp. inoculated with different nitrogen levels (0, 60, 90, 180 kg ha-1) on grain yield, yield components and agronomic traits of hybrid maize at the arid conditions of the central coast of Peru. The experimental design used was randomized complete block design with four replications per treatment, under the arrangement of subdivided plots, in which three corn hybrids were assigned to complete plots and four inoculant-N fertilization treatments, to the subplots. The results showed that for dose fertilization of 180 kg ha-1 of nitrogen (control), the grain yield of hybrid corn was similar as compared to 60-120 kg ha-1 N fertilization inoculated at 15 and 45 days with a native strain of Azospirillum sp., suggesting that the response in grain yield for hybrid corn can be balanced with nitrogen fertilization and inoculation with Azospirillum sp. 1x108 CFU mL-1 in conditions of arid soils, with possible impact on the use of this microorganism in the maize production system

scholarly journals Growth and Yield of Hybrid Maize as Influenced by Fertilizer Management

2018 ◽  
Vol 6 (12) ◽  
pp. 1727
Author(s):  
Md. Maidul Hasan ◽  
Tushar Kanti Ray ◽  
K. M. Manirul Islam ◽  
S.M. Younus Ali ◽  
Noor Muhammad ◽  
...  
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Poultry Manure ◽  
Grain Weight ◽  
Growth And Yield ◽  
Cow Dung ◽  
Plant Weight ◽  
Yield Attributes ◽  
Weight Yield ◽  
Hybrid Maize

An experiment was carried out at the Agronomy Field Laboratory, Department of Agronomy, Hajee Mohammad Danesh Science and Technology University, Bangladesh during the rabi season (December to May), 2012-13 to study the effect of different organic and inorganic fertilizers on growth and development of hybrid maize (Denali). The experiment was laid out in Randomized Complete block Design with three replications with 30 plots. Ten fertilizer treatments (T1= Compost, T2= Cow dung, T3= Poultry manure, T4= Recommended fertilizer dose, T5= Compost + Half recommended fertilizer dose, T6= Compost + Full recommended fertilizer dose, T7= Cow dung + Half recommended fertilizer dose, T8= Cow dung + Full recommended fertilizer dose, T9= Poultry manure + Half recommended fertilizer dose, T10= Poultry manure + Full recommended fertilizer dose. The recommended fertilizer dose was 500 Kg ha-1 urea + 250 Kg ha-1 TSP + 200 Kg ha-1 MP + 15 Kg ha-1 ZnSO4 + 6 Kg ha-1 Boric Acid. And the rate of Compost, Cow dung and Poultry manure was 10t/ha. The effect of different manure and fertilizer doses on the yield and yield attributes were significant. The plant height, number of leaves per plant, weight of stem per plant, weight of leaves per plant, length of cob, grain weight per cob, diameter of cob, no. of grains per row, no. of total grains per cob, 1000-grain weight, yield plant-1, yield ha-1 were significantly affected by different manures and fertilizer uses with different doses. The treatments T1, T2, T3, T4, T5, T6, T7, T8, T9 and T10 gave grain yield 10.16, 9.09, 8.49, 14.34, 13.35, 18.12, 11.99, 17.09, 11.40 and 15.98 t ha-1, respectively. The T6 Treatment gave higher grain yield (18.12) t ha-1 and the T3 treatment performed lowest grain yield (8.49 t ha-1). The application of compost and full dose fertilizer is higher yielding. Balance nutrition with enough organic matter enrichment of the soil is the cause of this result.

scholarly journals Enhancing rice yield in acidic soil through liming and fertilizer management

2018 ◽  
Vol 16 (3) ◽  
pp. 357-365
Author(s):  
Syeda Ariana Ferdous ◽  
Mohammad Noor Hossain Miah ◽  
Mozammel Hoque ◽  
Sazzad Hossain ◽  
Ahmed Khairul Hasan
Keyword(s):  
Grain Yield ◽  
Crop Production ◽  
Growth Parameters ◽  
Block Design ◽  
Fertilizer Application ◽  
Chemical Fertilizer ◽  
Acidic Soil ◽  
Growth And Yield ◽  
Treatment Combination ◽  
Four Levels

The effect of lime and fertilizer application, as the management of soil acidity, on the growth and yield of rice cv. BRRI dhan50 was investigated during Aman rice season at the Agronomy Field Laboratory of Sylhet Agricultural University, Bangladesh. The experiment was consisted of two factors namely lime and fertilizer. There were four levels of lime (0, 0.50, 1.00, and 1.50 t ha–1 of CaCO3.MgCO3) and three levels of fertilizers (control, FYM @ 10 t ha–1, and chemical fertilizer @ 100-30-42-4-3-0.4 kg ha–1 of N-P-K-Ca-S-Zn). The experiment was laid out in a randomized complete block design with three replications where the unit plot size was 4.0 m x 2.5 m. Growth parameters, yield components and yield of BRRIdhan 50 rice increased with increasing lime rate in association of fertilizer in acidic soil. The highest grain yield (2.90 t ha–1) was recorded from the application of 1.50 t ha–1 lime and the lowest (2.06 t ha–1) was from control (0t ha–1), irrespective of fertilizer. On the other hand, the best effect of fertilizers on grain yield (3.08 t ha–1) was found with the application of FYM @ 10 t ha–1 and the lowest yield (1.59 t ha–1) was in control. The treatment combination of lime 1.50 t ha–1 and FYM (@ 10 t ha–1 produced the highest grain yield (3.60 t ha–1), which was followed by treatment combination of lime 1.50 t ha–1 and chemical fertilizer @ 100-30-42-4-3-0.4 kg ha–1 of N-P-K-Ca-S-Zn (3.28 t ha–1). Additionally, application of lime and FYM improved the soil fertility and properties of acidic soil for crop production by increasing the pH, organic matter and availability of some essential nutrients. From the study, it was indicated that both FYM and lime could affect to enhance the grain yield of rice in acidic soil. J. Bangladesh Agril. Univ. 16(3): 357–365, December 2018

scholarly journals Screening of shade tolerant hybrid maize based on stress tolerance index

2021 ◽  
Vol 911 (1) ◽  
pp. 012018
Author(s):  
Lesty Ayu Bidhari ◽  
Roy Effendi ◽  
Nining N. Andayani ◽  
Slamet Bambang
Keyword(s):  
Light Intensity ◽  
Stress Tolerance ◽  
Environmental Conditions ◽  
Block Design ◽  
Genetic Material ◽  
Tolerance Index ◽  
Maize Production ◽  
Randomized Block Design ◽  
Maize Varieties ◽  
Hybrid Maize

Abstract The development of adaptive and high-yielding maize varieties tolerant to shade stress is the right strategy to increase productivity and national maize production by utilizing the land in shaded conditions or under annual stands with 40% shade intensity. This study aimed to assess the best genetic material before releasing new shade tolerant maize varieties. This experiment was conducted in shaded and unshaded conditions in the Indonesian Cereal Research Institute, Maros, from July-October 2018 in KP. Pandu, North Sulawesi under coconut trees from March-August 2019. The design is using a randomized block design with three replications. The genetic material used consisted of 10 three-lane cross-hybrid maize, SHD01, SHD02, SHD03, SHD04, SHD05, SHD06, SHD07, SHD08, SHD09, and SHD10, and two comparison varieties of three-lane cross-hybrid maize, Bima-19, and P-35. Shade causes a reduction in light intensity, impacting changes in the microclimate under the shade. This is indicated by the dynamics of changes in light intensity which are quite high between maize crops in shaded and unshaded conditions. Tolerance to shade stress was assessed by measuring the difference in yield between unshaded environmental conditions and shaded environmental conditions to assess average productivity under normal and shaded conditions using the stress tolerance index (STI). The adaptive level in shade conditions of the candidate varieties SHD02 and SHD10 was significantly better than that of the Bima 19 and P 35 varieties, with the STI values of these candidates being 0.87 and 0.80, while the two comparison varieties Bima 19 and P 35, were respectively only 0.62.

scholarly journals Study of growth and yield of maize (Zea mays L.) under levels of nitrogen and potassium fertilization

2020 ◽  
Vol 8 (1) ◽  
pp. 55-62
Author(s):  
Yahya A. A.M. Alnaseri ◽  
Sundus A. Alabdulla
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Leaf Area ◽  
Plant Height ◽  
Zea Mays L ◽  
Block Design ◽  
Growth And Yield ◽  
Potassium Fertilizer ◽  
Four Levels ◽  
Significant Superiority

"A field experiment was conducted during the autumn season 2018 at Al- Zinawiya site 10 km south-east of center Al- Nasiriya Governorate, to determine the effect of four levels of Nitrogen fertilizer (0.120,180 and 240 kg N ha-1 ) and four levels of Potassium fertilizer (0,80,120 and 160 kg K ha-1 ) and The interaction between them, on growth and yield of corn (Zea mays L.) Fajer-1 variety. Factorial experiment according to Randomized complete block design (R.C.B.D) was used in this study with three replicates The results showed the level 240 kg N ha-1 achieved significant superiority in the Days to Tasselling, Days to silking, Plant height, Leaf area, number of grains per ear, weight 500 grain, grain yield, the concentration of nitrogen and potassium in leaves (54.09 Days, 57.58 Days, 166.17cm, 399.29cm2 , 404.83per ear-1 , 158.20gm, 6.702t h-1 , 1.46Mg gm-1 , 1.28Mg gm-1 respectively). The level of 160 kg K-1 was significant superior among other levels by giving the best results of studied characters, (Days to Tasselling, Days to silking, Plant height, Leaf area, number of grains per ear, grain yield and the concentration of nitrogen in the leaves.) (54.09 Days, 57.58days, 138.42cm, 338.05 cm2 , 338.58 per ear, 5.250 t h-1 , 1.44Mg gm-1 respectively). The interaction for the treatment (240 kg N h-1 + 160 kg K h-1 ) was superior grain number of per ear (430.00), weight 500 grain (160.40 gm), and grain yield (7.060 t h-1)"

scholarly journals Weed control efficacy of hoe weeding and commercially formulated mixture of metolachlor + prometryn herbicide under maize production in soil amended with biochar

2019 ◽  
Vol 52 (2) ◽  
pp. 73-78
Author(s):  
Olusegun Raphael Adeyemi ◽  
David Obaloluwa Hosu ◽  
Patience Mojibade Olorunmaiye ◽  
Adeniyi Adebowale Soretire ◽  
Joseph Aremu Adigun ◽  
...  
Keyword(s):  
Grain Yield ◽  
Weed Control ◽  
Block Design ◽  
Maize Yield ◽  
Field Trials ◽  
Growth And Yield ◽  
Control Methods ◽  
Maize Production ◽  
Randomized Design ◽  
Manual Weeding

Abstract Successful cultivation of maize depends largely on efficient weed control, adequate supply of essential nutrients and sufficient soil moisture. Screenhouse and field trials were conducted at the Teaching and Research Farm of the Federal University of Agriculture, Abeokuta, Nigeria during the early and late cropping season of 2013 to evaluate effects of biochar integrated with manual weeding and pre-emergence herbicides on weed control efficiency and productivity of maize. The screenhouse trial was a 6 × 5 factorial experiment fitted into Completely Randomized Design in three replicates. The two factors were biochar: 0, 2, 4, 6, 8 and 10 t ha−1 and weed control methods: weedy check, hoe weeding at 6 Weeks After Sowing (WAS), hoe weeding at 3, 6, and 9 WAS, pre-emergence herbicide application (Codal Gold) at 1.0 and 2.0 kg a.i./ha−1. The field trial was laid out in split-plot arrangement fitted into Randomized Complete Block Design with three replicates. The three main treatments plots on the field consisted of the optimum rates of biochar obtained in the screenhouse (10 t ha−1) compared with 20 t ha−1 and 0 t ha−1 which served as the control. The sub-plots treatments consisted of weed control methods used in the screen house experiment. Data were collected on grain yield and weed dry matter. The result showed that biochar at 10 and 20 t ha−1 in the screenhouse and field trials, respectively, resulted in significantly (P < 0.05) higher grain yield compared with other rates tested. Highest grain yield was obtained in pots hoe weeded thrice at 3, 6 and 9 WAS. Whereas similar grain yield was recorded in plot weeded once at 6 WAS and that hoe weeded at 3, 6 and 9 WAS in the field experiment. Biochar application of 20 t ha−1 gave optimum maize yield. Among the weed control treatments manual weeding either at 6 WAS or at 3, 6 and 9 WAS recorded the highest grain yields. Therefore, incorporation of biochar with either preemergence herbicide or manual hoe weeding would enhance the growth and yield of maize.

scholarly journals Addition of silicate or organic fertilizer increases growth and yield of several varieties of maize in East Lombok, Indonesia

2021 ◽  
Vol 1 (1) ◽  
pp. 13-23
Author(s):  
Andrayani Endang Tatik ◽  
Wayan Wangiyana
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Block Design ◽  
Organic Fertilizer ◽  
Growth And Yield ◽  
Average Growth ◽  
Mean Values ◽  
Maize Varieties ◽  
Randomized Complete Block Design ◽  
Maize Plants

Many have reported that application of Silicon (Si) can alleviate environmental stress and increase grain yield of maize plants under stresses. This study aimed to examine the effects of adding organic or silicate fertilizer on several varieties of maize in rainfed area during a dry season, by conducting field experiment designed with Randomized Complete Block Design testing two treatment factors, i.e. maize varieties (V1= Bisi-2, V2= Srikandi, V3= Pioneer-27) and fertilizer combinations (F1= NPK only, F2= NPK+organic, F3= NPK+silicate). Results indicated that there were significant effects of fertilizer combinations and varieties on growth and yield of several maize varieties, in which the mean values were highest in maize plants fertilized with NPK+silicate fertilizers, except harvest index. Among the varieties, Pioneer-27 (hybrid) yielded the highest followed by Srikandi (open-pollinated) and Bisi-2 (hybrid) yielded the lowest grain weight per plant. However, there were interaction effects of the treatment factors, meaning that there were different responses between varieties of maize to application of organic or silicate fertilizer in addition to NPK fertilizer in terms of plant height, AGR (average growth rate) of plant height and dry grain yield per plant. Grain yield per plant of Pioneer-27 could be increased with application of organic (150.79 g/plant) or silicate (189.43 g/plant) compared with NPK only (133.99 g/plant), while that of Srikandi and Bisi-2 could only be increased by addition of silicate (113.83 g/plant in Srikandi and 103 g/plant in Bisi-2) compared with NPK only (93.77 g/plant in Srikandi and 82.59 g/plant in Bisi-2).

scholarly journals Evaluation of Drought Tolerant Top Cross and Three-Way Cross Maize Hybrids for Grain Yield and Related Traits in Three Agro-Ecological Zones of Southwest Nigeria

2019 ◽  
Vol 11 (3) ◽  
pp. 414-421
Author(s):  
Lawrence FAYEUN ◽  
Sayo SESAY
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Maize Hybrids ◽  
Ecological Zones ◽  
Drought Tolerant ◽  
Maize Varieties ◽  
Different Types ◽  
Southwest Nigeria ◽  
Hybrid Maize ◽  
Agro Ecological Zones

Superiority of hybrid maize cannot be overemphasized. Different types of hybrids are developed by plant breeders to improve productivity and multi-locational evaluation of these hybrids prior to release is necessary to select the best. The objectives of this study were to identify maize hybrids with superior agronomic potentials and compare the performance of top-cross and three-way cross hybrid maize varieties for grain yield and related traits under rain-fed condition in three different locations (Abeokuta, Ibadan and Akure) of Southwest Nigeria. The study consisted of ten hybrids each of top-cross and three-way cross hybrid varieties, tested with two checks. At each location, the experiment was laid out in randomised complete block design with three replications. The results showed that effects of locations, genotypes and genotype x location interactions were highly significant (p<0.01) for all the traits evaluated. Significant differences were also revealed between the top-cross and three-way cross hybrids for all the traits evaluated except days to 50% tasseling, ear diameter and 100-grain weight. The top-cross hybrids were superior over the three-way cross hybrids for grain yield by 5.25%. The hybrids ‘M0926-7’, ‘M0926-8’, ‘M1026-11’, ‘M1026-3’, ‘M1226-2’ (top-cross hybrids), ‘M1124-24’, ‘M1124-27’, ‘M1124-31’, ‘M1227-6’ and ‘M1227-7’ (three-way cross hybrids) showed highest stable yields across the three locations.  Hybrids ‘M0926-7’ (top-cross hybrid) and ‘M1124-24’ (three-way cross hybrid) that expressed early flowering with higher grain yield are recommended for drought stress prone areas because of their abilities to tolerate drought through escape.

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