scholarly journals Weed Dynamics in Maize (Zea mays L.) as Influenced by Pre and Post-emergence Herbicides under Temperate Conditions of Western Himalayan Region

2020 ◽  
pp. 123-131
Author(s):  
Faisul-ur- Rasool ◽  
M. I. Bhat ◽  
Z. A. Dar ◽  
S. A. Hakeem ◽  
S. Nasseer ◽  
...  
Keyword(s):  
Zea Mays ◽  
Sodium Salt ◽  
Field Experiments ◽  
Zea Mays L ◽  
Block Design ◽  
Research Station ◽  
Randomized Block Design ◽  
Significant Difference ◽  
Weed Dynamics ◽  
Hand Weeding

Field experiments were conducted in 2017-18 during main cropping  seasons of the year 2017 and 2018 at Dryland (Karewa) Agriculture Research Station, SKUAST-K to determine the effect of different post and pre emergence herbicides application on weed dynamics in maize (Zea mays L.). The experiment was laid out in randomized block design with four replications and variety used was Bio-605. Five treatments Five treatments viz, Atrazine 50% WP @ 1.0 kg ha-1 as pre-emergence and Paraquat dichloride 24% SL @ 0.5 kg ha-1, 2,4-D sodium salt 58% WSC @ 1.0 kg ha-1 as post-emergence herbicides (application at 2-3 leaf stage of weeds), hand weeding as standard check and weedy check as control were used. Effect of different herbicides on weed density was found significant. in plots managed with hand weeding, no weed was recorded. The Atrazine treated plots @ 1.0 kg ai ha-1 as pre-emergence had the weed population of 5.51, 5.4, 3.73, 5.12, 4.28 and 41.4m-2 , respectively in Echinochloa spp., Eleusine indica, Digitaria sanguinalis, Amaranthus viridis, Sorghum halepense and Cyperus spp.  However, the maximum population of weeds was recorded in weedy check with 21.54 m-2, 20.87 m-2, 19.16  m-2, 21.5 m-2, 16.7 m-2 and 60.7 m-2. No significant difference was observed between Paraquat dichloride 24% SL @ 0.5 kg ai ha-1 and 2,4- D Sodium salt 58% WSC  @ 1.0 kg ai ha-1 except for Cyperus spp. with density of 51.37 m-2 and 43.04 m-2 respectively. The potential of the atrazine in controlling weeds thereby enhancing yield of maize was found in this study.

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.

scholarly journals Efikasi Herbisida Atrazin terhadap Gulma Umum pada Lahan Budidaya Tanaman Jagung (Zea mays L.)

2017 ◽  
Vol 15 (1) ◽  
Author(s):  
Mustajab Mustajab ◽  
Dad R. J. Sembodo ◽  
Herawati Hamim
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Block Design ◽  
Agricultural Technology ◽  
Randomized Block Design ◽  
Significant Difference ◽  
Bartlett Test ◽  
Homogeneity Of Variance ◽  
The Common ◽  
And Control

The objective of this research was to know the efficacy of atrazine herbicide to control the common weed in maize (Zea mays L.) field and how was the phytotoxicity to maize (Zea mays L.) plant. The research was conducted in the Institute for Agricultural Technology assessment (BPTP), Natar Experimental Field, South Lampung regency with ultisol soil type and Weeds Laboratory Faculty of Agriculture, University of Lampung, from June to September 2013. The experiment was arranged in Completely Randomized Block Design (CRBD) with six treatments and four replications. The treatments are atrazine herbicide at 1.2, 1.6, 2.0, and 2.4 kg ha-1, mechanic weeding, and control. Homogeneity of variance was tested by Bartlett test and additivitty tested by Tukey's test, the comparison of mean were tested by Least Significant Difference (LSD) test at 5% level. The result showed that (1). Atrazine herbicide at 1.2 – 2.4 kg ha-1 could suppress total weed until 6 Week After Treatment (WAT). (2) Atrazine herbicide at 1.2–2.4 kg ha-1 could suppress broadleaves and grasses weed until 6 WAT. (3) Atrazine herbicide did not cause phytotoxicity symptoms to the maize (Zea mays L.).plant. Keywords: Weed, Efficacy, Atrazine, Maize

scholarly journals Impact of integrated weed management on yield and economics of Kharif maize (Zea mays L.)

2021 ◽  
Vol 16 (AAEBSSD) ◽  
pp. 73-76
Author(s):  
A. S. Bade ◽  
J. B. Patil ◽  
P. N. Gajbhiye ◽  
I. Sarwar ◽  
Kiran Yadav
Keyword(s):  
Zea Mays ◽  
Field Experiment ◽  
Weed Management ◽  
Zea Mays L ◽  
Block Design ◽  
Integrated Weed Management ◽  
Yield Attributes ◽  
Randomized Block Design ◽  
Hand Weeding ◽  
The Impact

A field experiment conducted to evaluate the impact of integrated weed management on economics of Kharif maize (Zea mays L.) during Kharif, 2020 at Post Graduate Research Farm, RCSM College of Agriculture, Kolhapur. The field experiment was laid out in Randomized Block Design (RBD) having eight treatments replicated thrice.Weed free check and tank mixure application of Tembotrinone 42 SC @ 120gm a.i.ha-1 + Atrazine 50 WP @ 500 gm a.i.ha-1 + surfactant @ 2ml/l of water EPoE At 20-25 DAS + fb hand weeding at 40 DAS were on par with each other and recorded significantly increase in grain and straw yields of maize as compared to remaining weed management treatments. Significantly lowest values for yield and yield attributes was observed in weedy check treatment.Maximum gross monetary returns and net monetary returns were observed in weed free check treatment was Rs. 183225.5 ha-1 and Rs. 126320.7 ha-1, respectively. Tank mixure application of Tembotrinone 42 SC @ 120gm a.i.ha-1 + Atrazine 50 WP @ 500 gm a.i.ha-1 + surfactant @ 2ml/l of water EPoE At 20-25 DAS recorded maximum B: C ratio (3.34).

scholarly journals Influence of Nitrogen and Zinc on Growth and Yield of Baby Corn (Zea mays L.)

2021 ◽  
pp. 64-70
Author(s):  
M. Tharaka ◽  
K. RaviChandra ◽  
Vikram Singh
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Block Design ◽  
Dry Weight ◽  
Growth And Yield ◽  
Research Station ◽  
Corn Yield ◽  
Area Index ◽  
Yield Attributes ◽  
Randomized Block Design

An experiment was conducted during the Rabi season of 2020 at Fodder Production Farm of Livestock Research Station (Sri Venkateswara Veterinary University), Lam Farm, Guntur. A.P, to find out the effect of basal application of Nitrogen and Zinc on growth and yield of Baby corn (Zea mays L.). The experiment was laid out in Randomized Block Design with 9 treatments and each treatment replicated thrice. Treatments consisted of combination of three levels of Nitrogen (80,100 and 120kg/ha) and three levels of Zinc (10, 20 and 30 kg/ha). It was observed that application of 100 kg Nitrogen /ha + 30 kg Zinc/ha, was found the best treatment for obtaining growth and yield attributes such as Plant height (178.46 cm), Plant dry weight (105.58 g), No. of leaves per plant (12.00), Leaf area index (3.07), No. of cobs per plant (4.19), Length of cob (20.72 cm), Length of the corn (9.06 cm), Girth of the cob (7.34 cm), Corn girth (3.42), Cob yield (16026.53 kg/ha) and Corn yield (2597.47 kg/ha in Krishna zone of Andhra Pradesh, India.

scholarly journals Efikasi Herbisida Campuran Atrazin Dan Mesotrion Untuk Mengendalikan Gulma Pada Budidaya Tanaman Jagung ( Zea Mays L.)

2017 ◽  
Vol 16 (1) ◽  
Author(s):  
Dera Fungky Ellezandi ◽  
Dad R.J. Sembodo ◽  
Herawati Hamim
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Block Design ◽  
Cyperus Rotundus ◽  
Commelina Benghalensis ◽  
Randomized Block Design ◽  
Significant Difference ◽  
Bartlett Test ◽  
Dose Combination ◽  
And Control

Maize (Zea mays L ) is the most important food crops in the world beside rice and wheat.  Weeds are one factor cause decrease productivity of maize.  The objectives of this research were to know of dose combination atrazine and mesotrione herbicide to control the weed in maize field and how was the atrazine and mesotrione effect to maize.  The research was conducted in Natar, South Lampung and Weeds Laboratory Faculty of Agriculture, University of Lampung, from December 2014 to April 2015.  The experiment was arranged in Completely Randomized Block Design (CRBD) with six treatments and four replications.  The treatments are combination atrazine and mesotrion herbicide rates at 500+50; 750+75; 1000+100; 1250+125; and 1500+150 g ha-1, mechanical weeding, and control.  Homogenity of variance was tested by Bartlett test and additivitty tested by Tukey's test, the comparison of mean were tested by Least Significant Difference (LSD) test at 5% level.  The result showed that (1) Atrazine and mesotrione herbicide at 500+50 until 1500+150 g ha-could suppress total, sedges, Cyperus rotundus and Celosia argenthea weed at 3 Weeks After Treatment (WAT), whereas at 6 WAT couldn’t suppress weeds.  (2) Atrazine and mesotrione herbicide at 500+50 until 1500+150 g ha-could suppress broadleaves, Richardia brasiliensis and Commelina benghalensis weeds until 6 WAT.  (3) Atrazine and mesotrione herbicide at 500+50 until 1500+150 g ha-couldn’t suppress grasses and Rottboellia exaltata weed until 6 WAT  (4) Atrazine and mesotrione herbicide does not affect the growth and production of maize. Key words: Weed, Efficacy, Atrazine, Mesotrione, Maize

scholarly journals Evaluation of intercropping systems in spring maize with sunflower and urdbean in North Western plain of India

2014 ◽  
Vol 12 (1) ◽  
pp. 26-32 ◽  
Author(s):  
A Bhatnagar ◽  
MS Pal
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Block Design ◽  
Biological Efficiency ◽  
Land Equivalent Ratio ◽  
Randomized Block Design ◽  
Spring Maize ◽  
Sole Cropping ◽  
North Western ◽  
Equivalent Yield

A field experiment was conducted for two years (2007 and 2008) at the G. B. Pant University of Agriculture and Technology, Pantnagar, to study the productivity, biological efficiency and economics of intercropping in spring maize (Zea mays L.) with sunflower (Helianthus annuus L.) and urdbean (Vigna mungo L.) under different spatial arrangements. The experiment consisting of ten treatments i.e. three sole crops (maize, sunflower and urdbean), six replacement intercropping system of maize with each sunflower and urdbean in row ratios of 1:1, 2:1 and 3:1 and one additive intercropping system of maize with urdbean in row ratios of 1+1 was laid out in randomized block design with three replications. The intercropping system of maize with urdbean in row ratio (1+1) was found beneficial over sole cropping of maize and gave the maximum maize-equivalent yield (5847 kg ha-1), land-equivalent ratio (1.36) and net return (Rs.13420 ha-1). Intercropping of maize in replacement arrangement was not productive and advantageous than respective sole crops. DOI: http://dx.doi.org/10.3329/sja.v12i1.21110 SAARC J. Agri., 12(1): 26-32 (2014)

Establishment Techniques on Yield and Economics of Pigeon Pea [Cajanus cajan (L.)] in North Western Zone of Tamil Nadu

2020 ◽  
Author(s):  
C. Sivakumar ◽  
A. Krishnaveni ◽  
M. Pandiyan ◽  
N. Tamilselvan
Keyword(s):  
Cajanus Cajan ◽  
Tamil Nadu ◽  
Field Experiments ◽  
Block Design ◽  
Pigeon Pea ◽  
Research Station ◽  
Net Income ◽  
Randomized Block Design ◽  
Western Zone ◽  
North Western

Field experiments were conducted to study the effect of establishment techniques on yield and economics of red gram [Cajanus cajan (L.)] under irrigated condition at Regional Research Station, Tamil Nadu Agricultural University, Paiyur - 635 112,Tamil Nadu, India during Kharif season of 2013-14 and 2014-15 respectively in randomized block design with four replications. The treatments are line sowing/dibbling of seeds, sowing behind the country plough, sowing in polybag and transplanting at 25 and 40 DAS, sowing in portrays and transplanting in 25 and 40 DAS. The redgram variety LRG 41 was used for study. The results revealed that, dibbling of seeds in lines recorded higher grain yield of 2351 kg ha-1, net income of Rs.99495/- and B:C ratio of 3.39. Thus, dibbling of seeds in lines recorded 6% higher over sowing in poly bag and transplanting at 25 DAS and 27% higher yield over sowing behind the country plough. Considering yield and economics, line sowing seems to better option for the farmers followed by sowing in polybags and transplanted in 25 DAS. Under transplanted situation, transplanting of seedlings at 30 DAS was more suitable where the monsoon was delayed for 30 to 45 days under rainfed situation. 

PERFORMANCE PRODUTIVA DE CULTIVARES DE MILHO EM TRÊS SISTEMAS DE CULTIVO NO LESTE MARANHENSE

2017 ◽  
Vol 15 (3) ◽  
pp. 520
Author(s):  
FRANCISCO CHARLES DOS SANTOS SILVA ◽  
MARIA DA CRUZ CHAVES LIMA MOURA ◽  
JOSÉ RONEILSON SILVA COSTA ◽  
EGON BASTOS DE OLIVEIRA ◽  
ITALO JHONNY COSTA
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Block Design ◽  
Cropping System ◽  
Farming Systems ◽  
Correct Choice ◽  
Local Conditions ◽  
Maize Cultivars ◽  
Randomized Block Design ◽  
The City

RESUMO – O Leste Maranhense corresponde à mais nova fronteira agrícola do Brasil. Entretanto, fatores limitantesda produtividade, como a escolha correta da variedade e o sistema de cultivo mais adequado para as condições locais,ainda são desconhecidos. Objetivou-se estudar o desempenho produtivo de 17 genótipos de milho, sob três sistemasde cultivo para a região. Foram realizados dois experimentos, um na cidade de Chapadinha e outro na cidade de Brejo,sendo avaliados 17 genótipos ao todo. Os ensaios foram dispostos no delineamento em blocos casualisados com quatrorepetições em esquema fatorial 3x10 [10 cultivares e três sistemas de cultivo (plantio com cobertura de palha decarnaúba; plantio sem cobertura; plantio intercalado com feijão caupi)]. O sistema de cultivo com palha de carnaúba,independentemente do genótipo de milho e do local de avaliação, proporcionou os maiores rendimentos de grãos.Em Chapadinha, os genótipos mais produtivos foram as variedades de polinização aberta Caiano e Al-Bandeirante,o híbrido duplo AGN 1051, os híbridos triplos 2B 433, BRS 3060 e CMS 3E482 e o híbrido simples P 3646 H. ParaBrejo, os melhores resultados foram obtidos pelos híbridos duplos 2B 707 HX e AGN 1051 e pelos híbridos simples2B 604 HX, 30 F35 H e P 3646 H.Palavras-chave: Zea mays L., Palhada, Rendimento de grãos.PRODUCTIVE PERFORMANCE OF MAIZE CULTIVARS IN THREE FARMING SYSTEMS IN EAST MARANHÃO STATEABSTRACT - East Maranhão State is the newest agricultural frontier in Brazil. However, productivity limiting factorssuch as the correct choice of variety and the cropping system more suitable to the local conditions are still unknown.The objective of this study was to evaluate the productive performance of 17 maize genotypes under three cultivationsystems for the region. Two experiments were carried out, one in the city of Chapadinha and another in the city ofBrejo, evaluating 17 genotypes. The trials were arranged in a randomized block design with 4 replications in a 3x10factorial scheme [10 cultivars and 3 cultivation systems (planting with cover of carnaúba straw, plantation withoutcover, intercropping with cowpea). The use of carnaúba straw provided the highest grain yields, regardless the maizegenotype and the evaluation site,. In Chapadinha the most productive genotypes were the open-pollinated varietiesCaiano and Al-Bandeirante, the double hybrid AGN 1051, the triple hybrids 2B 433, BRS 3060 and CMS 3E482 andthe simple hybrid P 3646 H. For Brejo the best results were obtained by the double hybrids 2B 707 HX and AGN 1051and by the simple hybrids 2B 604 HX, 30 F35 H and P 3646 H.Keywords: Zea mays L., Straw, Grain Yield.

EFICIÊNCIA DE BIOESTIMULANTES E FUNGICIDA NOS CARACTERES AGRONÔMICOS E ECONÔMICOS NA CULTURA DO MILHO VERDE

2018 ◽  
Vol 17 (2) ◽  
pp. 274
Author(s):  
RICARDO FRANCISCHINI ◽  
ALESSANDRO GUERRA DA SILVA ◽  
DAURI JOSÉ TESSMANN
Keyword(s):  
Zea Mays ◽  
Chlorophyll Content ◽  
Plant Height ◽  
Zea Mays L ◽  
Block Design ◽  
Stem Diameter ◽  
Production Costs ◽  
Net Income ◽  
Randomized Block Design ◽  
Presence And Absence

 RESUMO - O objetivo do trabalho foi avaliar o desempenho agronômico e econômico na cultura do milho verde submetida ao uso de bioestimulantes na presença e ausência de fungicida. Dessa forma, dois experimentos foram conduzidos em anos distintos, em delineamento experimental de blocos ao acaso com três repetições, em arranjo fatorial 4x2. O primeiro fator correspondeu à combinação de bioestimulantes (Ausência, MC Cream, MC Extra, MC Cream+MC Extra) e o segundo fator à presença e ausência de fungicida (piraclostrobina + epoxiconazole). Foi avaliado o peso de espigas verdes, a altura de plantas, diâmetro de colmo, teor de clorofila e severidade de doenças, além da viabilidade econômica dos tratamentos. Os Bioestimulantes, na ausência de fungicida, foram eficientes para aumentar o peso das espigas verdes, altura de plantas, e o teor de clorofila. Na presença do fungicida os bioestimulantes aumentaram o diâmetro de colmo e reduziram a severidade de doenças. Os investimentos em insumos elevaram os custos de produção, porém a rentabilidade foi compensada pelo aumento da renda bruta. Em situação de baixa disponibilidade hídrica, o bioestimulante MC Extra foi o mais viável economicamente para a cultura do milho verde.Palavras-chave: fitossanidade, produtividade, renda líquida, Zea mays L. EFFICIENCY OF BIOSTIMULANTS AND FUNGICIDE IN THE AGRONOMIC AND ECONOMIC CHARACTERS OF GREEN CORN  ABSTRACT – The objective of this work was to evaluate the agronomic and economic performance of the green corn crop, subjected to the use of biostimulants in the presence and absence of fungicide. Two experiments were conducted in different years using a randomized block design with three replications, in a 4x2 factorial arrangement. The first factor corresponded to the combination of biostimulants (Absence, MC Cream, MC Extra, MC Cream + MC Extra) and the second factor was the presence and absence of fungicide (pyraclostrobin + epoxiconazole). Green ear weight, plant height, stem diameter, chlorophyll content and severity of diseases were evaluated, as well as the economic viability of the treatments.In the absence of fungicide, biostimulants were efficient to increase the green ear weight, plant height, and chlorophyll content. In the presence of the fungicide, biostimulants increased stem diameter and reduced disease severity. Investments in inputs increased production costs, but profitability was offset by the increase in gross income. In a situation of low water availability, the biostimulant MC Extra was the most economically viable for the green maize crop.Keywords: plant health, productivity, net income, Zea mays L.

scholarly journals Karakteristik Fenotipik dan Pengelompokan Jagung Pulut Hibrida Zea mays L. Hasil Persilangan Puncak

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Juhriah Juhriah ◽  
Muhammad Azrai ◽  
Elis Tambaru ◽  
Jum Eka Rahayu
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Block Design ◽  
Experimental Plant ◽  
Phenotypic Characteristics ◽  
Phenotypic Characters ◽  
South Sulawesi ◽  
Randomized Block Design ◽  
Qualitative Characters ◽  
Waxy Corn

This research is the phenotypic characteristics and grouping of hybrid waxy corn Zea mays L. product of the top cross had been carried out in the experimental plant Indonesian Cereals Research Institute (ICERI) in Maros South Sulawesi. This research aims to determine the phenotypic characters of the hybrid of waxy corn Zea mays L. product of the top cross and grouping based on its phenotypic characteristics. This research used a randomized block design (RBD) with 17 th treatments (corn strains) and three replications. Waxy corn strains used were: URI 1 (G8), G8G1, G8G2, G8G3, G8G4, G8G5, G8G6, G8G7, Soppeng (G10), G10G1, G10G2, G10G3, G10G4, G10G5, G10G6, G10G7, and Paramitha.. All data (qualitative and quantitative) are arranged in binary tables and grouped using the NTSYST program. The observations show that the data obtained comes from 14 quantitative characters and 17 qualitative characters. Quantitative data from 14 characters were tested and the results of 10 characters were significantly different and the other 4 were not significantly different. The grouping results show that the 17 corn strains studied formed 3 groups at the similarity coefficient of 0.76. Soppeng's corn is different from the others.

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