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

 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.

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.


2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Wira Hadianto ◽  
Nana Ariska ◽  
Muhammad Husen

This study aims to determine the effect of tillage systems on the growth and production of corn. Materials and tools used in this study were: Corn seeds used in this study were Bonanza F1 Varieties, the basic fertilizer used was NPK BASF (15:15:15) 300 kg ha-1. The tools that will be used in this study are Scales, Caliper, Machetes, Hoes, Knives, Meters, Gembor, Buckets, Hend spayers and stationery. The experimental design used in this study was a non factorial randomized block design (RBD) 3 treatments with 3 replications. The factors studied include: Soil processing system (T) which consists of 3 (three) levels including: No Soil (T1), Minimum Soil (T2) and Maximum Soil (T3). Observation parameters observed were plant height, stem diameter, ear length, ear diameter, ear weight, ear weight per plot and ear weight per ha. The results showed that the tillage system had a very significant effect on plant height at the age of 21 HST, weight of crop cobs, weight of cobs per plot and weight of cobs per hectare. Significantly affected plant height at ages 28, 35 and 42 HST, stem diameter age 21.28, 35 and 42, but had no significant effect on cob length and ear diameter. The best treatment is found in the maximum tillage system (T3). Keywords: tillage system, corn, Bonanza F1 variety 


2019 ◽  
Vol 1 (1) ◽  
pp. 16-25
Author(s):  
Rikwan Kardo Berutu ◽  
Rizal Aziz ◽  
Sumihar Hutapea

Black corn has its advantage compare to regular corn due to the nutrition component. This could lead the increase of demant to this corn variety. The Effect of providing various biochar sources and various manure on the growthand production of Zea mays black maiz L. The study used factorial randomized block design with two factors, namely the provision of various biochar sources which was combined into several organic fertilizer. Parameters observed were plant height, stem diameter, number of leaves, wet production weight/sample using klobot, wet production weight/plot using klobot,wet production weight/sample without klobot, wet production weight/plot without klobot, dru production weigh of pipil/sample, dry weight of production of onehundred grain pipil. The results of the study showed that the effect of giving various biochar of rice husk corn cobs of candlenut shells did not signficantly affect all observation parameters and various manure, namely cows, chickens and goats also did not significantly affect all observed parameters.


2021 ◽  
Vol 9 (2) ◽  
pp. 127
Author(s):  
Rudi Priyadi ◽  
Ade Hilman Juhaeni ◽  
Candy Kusuma Dewi

This study aims to determine the dose combinations of inorganic fertilizers and the fermentation of organic cow dung that respond well to corna. This research was conducted by August to November 2020, in the experimental garden of the Agriculture Faculty, Siliwangi University, Mugarsari Village, Tamansari District, Tasikmalaya City with a height of 360 meters above sea level (m asl). The study used a randomized block design (RBD) with 6 treatments and was repeated 4 times. Dose tested P0 = control (without being given fertilizer), P1 = Poration of cow dung 20 t / ha, P2 = NPK 300 kg / ha, P3 = NPK 250 kg / ha + cow dung poration 5 t / ha, P4 = NPK 200 kg / ha + poration of cow dung 10 t / ha and P5 = NPK 150 kg / ha + poration of cow dung 15 t / ha. The results showed that the application of NPK fertilizer and cow dung could be responded to by corns, with the results of statistical analysis that was significantly different on plant height at 18 DAS, weight of 100 seeds and shelled weight per hectare.


2020 ◽  
Vol 3 (4) ◽  
pp. 16-25
Author(s):  
Fathul Rizal ◽  
Bakhtiar Bakhtiar ◽  
Jumini Jumini

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh dosis ampas tahu dan konsentrasi pupuk agrobost serta interaksi antara terhadap pertumbuhan dan hasil tanaman jagung manis. Penelitian ini dilaksanakan di Kebun Percobaan dan Laboratorium Fisiologi Tumbuhan Fakultas Pertanian Universitas Syiah Kuala Banda Aceh pada bulan Januari sampai April 2018. Rancangan yang digunakan adalah Rancangan Acak Kelompok pola faktorial 4 x 3 dengan 3 kali ulangan. Faktor pertama adalah dosis ampas tahu dan faktor kedua adalah konsentrasi pupuk Agrobost. Peubah yang diamati yaitu tinggi tanaman, diameter batang, panjang tongkol berkelobot, panjang tongkol tanpa kelobot, berat tongkol berkelobot, berat tongkol tanpa kelobot dan potensi hasil. Hasil penelitian menunjukkan bahwa dosis ampas tahu berpengaruh sangat nyata terhadap tinggi tanaman 45 HST, diameter batang umur 30 HST dan 45 HST, panjang tongkol berkelobot, tanpa kelobot, berat tongkol berkelobot dan tanpa kelobot, potensi hasil berkelobot dan tanpa kelobot, berpengaruh nyata terhadap tinggi tanaman 15 HST dan 30 HST serta diameter batang 15 HST. Perlakuan konsentrasi pupuk Agrobost berpengaruh sangat nyata terhadap diameter batang 30 dan 45 HST, panjang tongkol berkelobot, panjang tongkol tanpa kelobot, berat tongkol berkelobot, berat tongkol tanpa kelobot, potensi hasil berkelobot dan potensi hasil tanpa kelobot. Namun tidak berpengaruh nyata terhadap tinggi 15 dan 45 HST serta diameter 15 HST. Tidak terdapat interaksi yang  nyata antara dosis ampas tahu dan konsentrasi pupuk Agrobost terhadap semua peubah  pengamatan.  Perlakuan dosis ampas tahu 10, 20 dan 30 ton/ha  memberikan pertumbuhan dan hasil jagung  manis yang sama baiknya, namun dari segi ekonomis 10 ton/ha lebih efektif untuk digunakan. Perlakuan pupuk agrobost yang lebih baik di jumpai pada konsentrasi 15 ml/l air yang memberikan pertumbuhan dan hasil jagung manis dibandingkan dengan kontrol dan 30 ml/l air.Kata kunci : Ampas Tahu, Agrobost, Jagung ManisEfect of Dosage Tofu Dregs and Agrobost Fetilezer to Growth and Yield of Sweet Corn Crops Zea mays saccharat Sturt.Abstrack. This research was conducted to know wheter the effect of dosage tofu dregs and agrobost fertilizer consentration and interaction between both of it to growth and yield of sweet corn crops. This research did at. Experimental Farm and Plant Phaysiology Laboratory of Syiah Kuala University, Banda Aceh, on January to April 2018. The design was used  Randomized Block Design (RBD) 4 x 3 factorial pattern with 3 times repeated. The first factor was dosage of tofu dregs (D) and the second factor was agrobost consentration (T). The observed variables were plant height, stem diameter, length of cob weighted, length of cob without weighted, weight of cob weighted, weight of cob weight without weight and yield potential. The results showed that dosage of tofu dregs very significant effect on plant height of 45 DAP, stem diameter of 30 DAP and 45 DAP, length of cob weighted, length of cob without weighted, weight of cob weighted and weight of cob without weighted, yield potency of cob weighted and yield potency of cob without weighted. The significant effect on  plant height of 15 DAP and 30 DAP and stem diameter of 15 DAP. Agrobost fertilizer concentration was very significant effect on stem diameter of 30 and 45 DAP, length of cob weighted, length of cob without weighted, weight of cob weighted, weight of cob without weighted, yield potency of cob weighted and yield potency without weighted. However, no significant effect on the plant height of  15 and 45 DAP and the diameter of 15 DAP. There were no interaction between dregs of tofu and Agrobost fertilizer concentration on all observation parameters. The treatment of  dregs tofu 10, 20 and 30 tons/ha the same growth and yield of sweet corn, but terms of economical 10 tons/ha is more effective to use. The treatment of agrobost fertilizer  was found better at concentration of 15 ml/l water which gave growth and sweet corn yield compared to the control and 30 ml/l water.Keyword: Dregs of Tofu, agrobost, Sweet Corn 


2013 ◽  
Vol 31 (2) ◽  
pp. 379-386
Author(s):  
R.C. Adriano ◽  
C.A.M. Azania ◽  
L.R. Pinto ◽  
D. Perecin ◽  
A.A.P.M. Azania

Knowledge of the minimum rate of glyphosate required to eradicate sugarcane ratoons can reduce the amount of herbicide used. To confirm this hypothesis, this study aimed to investigate the tolerance of different sugarcane cultivars to chemical eradication, at different glyphosate rates. The experiment was conducted in a randomized block design in a split-plot scheme, with four replications. The sugarcane cultivars (IACSP94-2094, IACSP94-2101, IACSP93-3046, IACSP94‑4004, IAC86-2480, and RB72454) were allocated in plots and the glyphosate rates (0, 1,440, 2,160, 2,880, 3,600, and 4,320 g ha-1), in the sub plots. The traits evaluated were signs of poisoning symptoms; total chlorophyll content, plant height, percentage of dead tillers, and dry weight of the plants. At 45 days after application (DAA), the glyphosate rate of 1,440 g a.e. ha-1 eradicated the cultivars IACSP94-2094 and IACSP94-2101, as well as RB72454 with application of 2,160 g a.e. ha‑1. Application of glyphosate 2,880 g a.e. ha-1 eradicated both IACSP93-3046 and IAC86-2480 and glyphosate 3,600 g a.e. ha-1 eradicated IACSP94-4004. The most tolerant cultivar was IACSP94‑4004, eradicated at the rate of 3,600 g. a.e. ha-1. This confirms the hypothesis that knowing the cultivar's tolerance leads, in practice, to a smaller amount of herbicide applied to the environment, which also reduces production costs.


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)


2020 ◽  
Vol 8 (03) ◽  
pp. 289-295
Author(s):  
Warlinson Girsang ◽  
Rosmaria Girsang

The research was carried out in Dolog Masagal Subdistrict, Simalungun Regency, altitude ± 1.100 m above sea level. The research was conducted from January to May 2019. The purpose of this study was to determine the tolerance level of several hybrid corn varieties to cob rot disease. Methods for conducting the research used randomized block design (RBD) with 1 factor. Types of hybrid corn varieties tested were: Pioneer 29 (V1), NK 99 (V2), Pioneer 12 (V3), NK 22 (V4), Pioneer 4 (V5), Nusantara I (V6), Asia 1 (V7).The parameters observed were: plant height, cob diameter, cob length containing seeds, number of seed rows per cob, number of seeds per row, number of seeds per cob,  husk cover in cob, cob rot intensity, the amount of dry production per plot, and the weight of 1.000 seeds. Based on the research results, different types of hybrid corn varieties produce different tolerances of cob rot resistance in the Simalungun highlands. The most tolerant variety of cob rot disease is Pioneer 29 (mild damage scale = 0 - 10%). Different types of varieties planted also affect various components of growth and production, among others: plant height, number of seeds per row, number of seed rows per cob, husk cover on cob, dry production per plot, and weight of 100 grains. As for the parameters of cob diameter, cob length containing seeds and the number of seed rows per cob, the difference in varieties did not significantly affect.


Irriga ◽  
2020 ◽  
Vol 25 (2) ◽  
pp. 223-233
Author(s):  
Jardel Henrique Kirchner ◽  
Adroaldo Dias Robaina ◽  
Marcia Xavier Peiter ◽  
Rogério Ricalde Torres ◽  
Wellington Mezzomo ◽  
...  

ALTURA DE PLANTAS E DIÂMETRO DE COLMOS DE SORGO FORRAGEIRO IRRIGADO EM FUNÇÃO DE CORTES     JARDEL HENRIQUE KIRCHNER1; ADROALDO DIAS ROBAINA2; MARCIA XAVIER PEITER3; ROGÉRIO RICALDE TORRES4; WELLINGTON MEZZOMO5 E RICARDO BENETTI ROSSO6   1 Eng. Agrônomo, Doutor, Professor do Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul, Rua Nelsi Ribas Fritsch, nº 1111, bairro Esperança, Ibirubá, RS, Brasil, CEP: 98200-000, [email protected]. 2  Eng. Agrônomo, Doutor, Professor Titular do Departamento de Engenharia Rural, UFSM, Avenida Roraima, nº 1000, bairro Camobi, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected]. 3 Eng. Agrônoma, Doutora, Professora Associada do Departamento de Engenharia Rural, UFSM, Avenida Roraima, nº 1000, bairro Camobi, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected]. 4 Eng. Agrônomo, Doutor, Professor do Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul, Rua Eng. João Viterbo de Oliveira, nº 3061, Zona Rural, Vacaria, RS, Brasil, CEP: 95219-899, [email protected]. 5 Eng. Agrônomo, Mestre, Doutorando no Programa de Pós-Graduação em Engenharia Agrícola, UFSM, Avenida Roraima, nº 1000, bairro Camobi, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected]. 6 Eng. Agrônomo, Doutor, Professor no Instituto Federal Catarinense, Rodovia SC 283 - km 17, Concórdia, SC, Brasil, CEP: 89703-720, ricardo.rosso @ifc.edu.br.      1 RESUMO   A obtenção de elevadas produtividades de pastagens é essencial para a manutenção dos níveis alimentares de rebanhos bovinos. A altura de plantas e o diâmetro de colmos caracterizam-se como determinantes no sucesso produtivo da pastagem pela quantidade de massa produzida. Um dos fatores que alteram esses índices são as precipitações irregulares, tornando necessária a reposição da demanda através da irrigação. O objetivo do trabalho foi avaliar o diâmetro de colmos e a altura de plantas sob diferentes condições hídricas e cortes no sorgo forrageiro, em dois anos agrícolas no estado do Rio Grande do Sul. Foram conduzidos dois experimentos nos anos agrícolas de 2015/2016 e 2016/2017 em Santa Maria (RS), e foram avaliadas as alturas de plantas e os diâmetros de colmos em seis condições hídricas (não irrigado, 25, 50, 75, 100 e 125 % da ETo), em três períodos de cortes (50, 80 e 110 dias após a semeadura) em delineamento blocos ao acaso. Foram encontradas diferenças estatisticamente significativas para a variação da altura de plantas e também do diâmetro de colmos, tanto conforme a lâmina de irrigação, quanto na sequência de cortes.   Palavras chave: pastagem irrigada, capacidade de rebrote, irrigação.     KIRCHNER, J. H.; ROBAINA, A. D.; PEITER, M. X.; TORRES, R. R.; MEZZOMO, W.; ROSSO, R. B. HEIGHT OF PLANTS AND DIAMETER OF STEMS OF SORGHUM FORAGE IRRIGATED BY CUTS         2 ABSTRACT   Achieving high pasture yields is essential for maintaining feed levels in cattle herds. Plant height and stem diameter are determinants of pasture production success by the amount of mass produced. One of the factors that change these rates is irregular rainfall, making it necessary to replenish demand through irrigation. The objective of this work was to evaluate stem diameter and plant height under different water conditions and forage sorghum cuts in two agricultural years in the state of Rio Grande do Sul. Two experiments were conducted in the agricultural years of 2015/2016 and 2016/2017 in Santa Maria / RS, and plant heights and stem diameters were evaluated in six water conditions (non-irrigated, 25, 50, 75, 100 and 125% of ETo), in three cutting periods (50, 80 and 110 days after sowing) in a randomized block design. Statistically significant differences were found for plant height and stem diameter variation, both according to irrigation depth and cut sequence.   Keywords: irrigated pasture, regrowth capacity, irrigation.


2020 ◽  
Vol 4 (1) ◽  
pp. 108-117
Author(s):  
Rahmat Fitra Yandi Nasution ◽  
Syamsuddin Syamsuddin ◽  
Syafruddin Syafruddin

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh jenis mikoriza, varietas dan interaksi jenis mikoriza dan varietas terhadap pertumbuhan dan hasil tanaman cabai pada tanah Incepticol. Penelitian ini dilaksanakan di Kebun Percobaan Iesuum Krueng Raya Aceh Besar, Rumah Kaca dan Laboratorium Fisiologi Tumbuhan Fakultas Pertanian Universitas Syiah Kuala Darussalam Banda Aceh dari bulan Mei sampai September 2018. Analisis data yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) pola faktorial 3 x 2 dengan 3 ulangan. Faktor yang diamati dalam penelitian ini adalah jenis mikoriza dan varietas. Jenis mikoriza yang digunakan adalah Glomus mosseae, Gigaspora sp dan Campuran serta varietas yang digunakan adalah varietas Lado F1 dan Perintis. Hasil penelitian ini menunjukan jenis mikoriza berpengaruh nyata pada tinggi tanaman 30 dan 45 HSTdan jumlah cabang produktif. Jenis mikoriza terbaik terdapat pada jenis mikoriza campuran (Glomus mosseae dan Gigaspora sp). Pada varietas berpengaruh sangat nyata terhadap tinggi tanaman 15,30 dan 45 HST, diameter batang 30 dan 40 HST dan jumlah cabang produktif serta berpengaruh nyata pada diameter batang 45 HST. Jenis varietas terbaik terdapat pada varietas Lado. Interaksi antara jenis mikoriza dan jenis varietas berpengaruh sangat nyata terhadap tinggi tanaman 30 HST dan jumlah cabang produktif serta berpengaruh nyata pada diameter batang 30 HST.Interaksi antara jenis mikoriza dan varietas terbaik tedapat pada jenis mikoriza campuran (Glomus mosseae dan Gigaspora sp) dengan varietas Lado F1.The Effect of Mycorrhizal Types on the Growth of Some Chili Varieties in Incepticol Soil Krueng Raya Aceh BesarAbstract. This research aims to determine the effect of type of mycorrhiza, varieties, and interactions of mycorrhiza and varieties types on the growth and yield of chili plants on the Inceptisol land. This research was carried out at the Krueng Raya Iesuum Experimental Garden in Aceh Besar, greenhouse and laboratory of plant physiology, Faculty of Agriculture of Syiah Kuala University, Darussalam, Banda Aceh from Mei to September 2018. The analysis of data used in this study was Randomized Block Design -Factorial 3x2 with 3 replications. The factors observed in this research were the type of mycorrhiza and varieties. Types of mycorrhiza used are Glomus mosseae, Gigaspora, and the combination. Varieties used are Lado F1 and Perintis. The result of this research showed that types of mycorrhiza take effect significantly on plant height 30 dan 45 DAP and productive branch numbers. The mixed of mycorrhiza gives the best result on growth and yield of chili plant. The varieties of chili plants highly significant take effect on plant height 15, 30 and 45 DAP, stem diameter 30 and 40 HST and productive branch numbers and significantly affect on stem diameter 45 DAP. Lado F1 gives the best result on growth and yield. The interactions of mycorrhiza and varieties type highly significant take effect on plant height 30 HST and productive branch number and significantly take effect on stem diameter 30 HST. The combination of mixed mycorrhiza and Lado F1 treatment gives the best result on growth and yield of chili plants. 


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