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

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

2017 ◽  
Vol 15 (1) ◽  
Author(s):  
Mustajab Mustajab ◽  
Dad R. J. Sembodo ◽  
Herawati Hamim

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


Author(s):  
Faisul-ur- Rasool ◽  
M. I. Bhat ◽  
Z. A. Dar ◽  
S. A. Hakeem ◽  
S. Nasseer ◽  
...  

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.


AGRICA ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 124-133
Author(s):  
I Ketut Arsa Wijaya

This study was conducted in Balai Benih Induk (BBI) Luwus, Baturiti District, Tabanan Regency, with the high of place 506m above sea level occurring in March to May 2014. This research used randomized block design arranged per factor, namely population of plants (P) including three steps: P1=80.000 plants per hectare, P2= 100.00 plants per hectare, P3= 120.000 per hectare; and mulch (M) that include: M0= without mulch and without cleaning, M1= without mulch with clean weeding, M2= rice plants straw mulch (5 ton per hectare) and M3= black silver plastic mulch. Eventually, there were 12 combination treatments, each of which was repeated 3 times to obtain 36 land slots. The research indicates that there was no real interaction between the treatment of plant population and mulch usage in all variables observed. The 100.000 plant population per hectare can produce the weight of dry and fresh oven corn kernel without highest cornhusk that was to say 4.79 tons and 0.53 tons or 11.66 % and 20.45% higher compared to 120.000 plant population per hectare. The use of black silver plastic and rice plants straw mulch can produce the weight of fresh and dry oven corn kernel without cornhusk per hectare each of which is 4.69 tons, 4.57 tons, and 0.54 tons, 0.47 tons or 26.76%, 38.46 %, and 23.51 %, 20.51 % higher than without mulch and without clean weeding. Clean weeding treatment can produce the weight of fresh and dry oven corn kernel without cornhusk per hectare with its weight of 4.63 tons and 0.51 tons or 25.35 % and 35.90 % higher than without mulch and cleaning. Clean weeding treatment was not obviously different from mulch treatment. The identification of weed types were 19 kinds of weeds and Cyperus rotundus L. Weeds. They have the highest density and each absolute frequent of 1249.333 stems m-2 and 1.00.


2014 ◽  
Vol 12 (1) ◽  
pp. 26-32 ◽  
Author(s):  
A Bhatnagar ◽  
MS Pal

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)


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

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.


2018 ◽  
Vol 17 (2) ◽  
pp. 274
Author(s):  
RICARDO FRANCISCHINI ◽  
ALESSANDRO GUERRA DA SILVA ◽  
DAURI JOSÉ TESSMANN

 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.


2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Juhriah Juhriah ◽  
Muhammad Azrai ◽  
Elis Tambaru ◽  
Jum Eka Rahayu

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.


2020 ◽  
Vol 4 (1) ◽  
pp. 91-99
Author(s):  
Multazam Palepi ◽  
Jumini Jumini ◽  
Syaffrudin Syaffrudin ◽  
Syaffrudin Syaffrudin

Abstrak.  Penelitian ini bertujuan untuk mengetahui pengaruh jenis mikoriza dan populasi tanaman terhadap pertumbuhan dan hasil jagung manis, serta interaksi antara jenis mikoriza dengan populasi tanaman terhadap pertumbuhan dan hasil jagung manis. Penelitian ini dilaksanakan pada bulan November 2017 sampai Januari 2018 di Desa Blang Krueng, Kecamatan Baitussalam, Kabupaten Aceh Besar. Rancangan Penelitian yang digunakan adalah Rancangan Acak Kelompok (RAK) pola faktorial 3 x 2 dengan  3 ulangan. Faktor yang diteliti yaitu jenis mikoriza dan populasi tanaman. Faktor jenis mikoirza terdiri dari 3 taraf yaitu ; mikoriza glomus mosseae, gigaspora dan campuran. Faktor populasi tanman terdiri atas 2 taraf yaitu : satu benih dan dua benih. Hasil penelitian menunjukkan penggunaan jenis mikoriza campuran secara umum menghasilkan pertumbuhan dan  hasil  tanaman jagung yang lebih baik. Sedangkan populasi tamanan yang terbaik adalah satu tamanan. Selanjutnya Interaksi yang lebih baik terdapat  pada jenis mikoriza campuran dengan  populasi tamanan pada parameter diameter batang 15 HST dan 30 HST, berat basah akar dan berat buah berkelobot, diameter tongkol,berat buah tampa kelobot dan potensi hasil per hektar. The effect of Mycoriza Types and Number of Crop Populations on Growth and Yield of Sweet CornAbstractThis research purposes to know the effect of mycoriza types and the population of  the plants toward the growth and yield of sweet corn and the interaction between mycoriza types and the population of  the plants to the growth and yield of sweet corn. This research was carried out in November 2017 until Januari 2018 at Blang Krueng village, Baitussalam sub-district, Aceh Besar Regency and Physiology Laboratory, faculty of Agriculture, Syiah Kuala University. This research was conducted Randomized Block Design factorial pattern 3 x 2 with 3 replications. The factors studied in this research are mycoriza types and the population of  the plants. 3 types of mycoriza types are glomus mosseae mycoriza, gigaspora and the mixture of glomus mosseae and gigaspora. and 2 types of the population of  the plants are using one seed and two seed. The result of this research pointed out that the using of the mixture mycoriza type generally increased the growth and yield of sweet corn.  Whereas, the using of the population  of  the plants with one seed had showed the best result. And the better interaction is obtained in the mixture mycoriza with the population of  the plants in there after a good interaction is present in mixed mycorrhizae species with plan population on the diameter of tehstem 15 HST and 30 HST, the weight of the root base and the weight of the weighted fruit, the diameter of the cob weight of the without any weight fruit and the potential yield per hactare.


2020 ◽  
Vol 5 (2) ◽  
pp. 31-40
Author(s):  
Nur Roslini ◽  
Bakhtiar Bakhtiar ◽  
Siti Hafsah

Abstrak. Penelitian ini bertujuan untuk menyeleksi tanaman jagung berdaya hasil tinggi. Penelitian ini dilaksanakan di PT Syngenta Seed Indonesia Kediri Field Station dusun Sukodono desa Kedungmalang kecamatan Papar kabupaten Kediri, Jawa Timur yang berlangsung pada Mei sampai Oktober 2019. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) non faktorial dengan 24 genotipe uji, 4 genotipe pembanding (untuk uji daya hasil) dengan 2 ulangan. Pada uji daya hasil diperoleh 7 genotipe yaitu 18ID010144, 18ID010123, 18ID006020, 18ID010135, 18ID010125, 18ID007419 dan 18ID010148 yang memiliki daya hasil tinggi diatas genotipe pembanding daya hasil tertinggi. 24 genotipe uji yaitu 18ID010125 memiliki daya hasil 14,12 ton ha-1 genotipe 18ID010123 memiliki daya hasil tertinggi 15,28 ton ha-1 dan genotipe 18ID010148 memiliki daya hasil 13,91 ton ha-1. Yield Trial Screening on S5 Hybrid Maize (Zea mays L.)Abstract. This research aims to select maize are high yield. This research was conducted at PT Syngenta Seed Indonesia Kediri Field Station Sukodono in Sukodono sub-village, Kedungmalang village, Papar district, Kediri district, East Java, which took place from May to October 2019. The design used in this research was Non Factorial Randomized Block Design (RBD) with 24 test genotypes, 4 comparative genotypes (for yield trial) with 2 replications. The results showed that In yield trial was obtained 7 genotypes (18ID010144, 18ID010123, 18ID006020, 18ID010135, 18ID010125, 18ID007419 dan 18ID010148) which have high yields above the highest comparative yield genotypes. There were 3 genotypes selected from 24 test genotypes consist 18ID010125 has yield 14,12 tons ha-1,genotype 18ID010123 has the highest yield 15,28 tons ha-1 and genotype 18ID010148 has yield 13,91 tons ha-1. 


Agrologia ◽  
2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Margaret Ch Soplanit ◽  
Ruddi Soplanit

Fertilization efficiency which could enhance soil productivity is determined by type, application method and appropriate dose of fertilizers.  A green house experiment to study effect of different maturity level of ela  sago bokashi and some dosage of  SP-36 fertilizer on P-uptake and growth of maize (zea mays l.) on ultisols has been performed. The experiment was set up in three-replicates factorial Randomized Block Design. The treatments were  three maturity level of ela sago bokashi i.e. 2, 3 and 4 weeks; and four dosages of SP-36 fertilizer i.e. 0, 2, 4 and 6 g/10 kg of soil. The results showed that application of bokashi regardless of their maturity at the same time with each  doses of SP-36  increased P uptake, plant height and stem diameter of maize. Giving four-week ela sago bokashi with 6 gr/10 kg of soil of SP-36 was the best treatment to improve P uptake, plant height and stem diameter of corn crop up to  0.15%, 140, 60 cm and 1.64 mm respectively.


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