scholarly journals ANÁLISE TÉCNICA E ECONÔMICA DA APLICAÇÃO FOLIAR DE POLIFOSFATO DE AMÔNIO NA CULTURA DO MILHO

2017 ◽  
Vol 15 (3) ◽  
pp. 377
Author(s):  
FABIANO PACENTCHUK ◽  
ITACIR ELOI SANDINI ◽  
MARGARETE KIMIE FALBO
Keyword(s):  
Economic Analysis ◽  
Yield Components ◽  
Positive Response ◽  
Foliar Application ◽  
Maize Yield ◽  
Ammonium Polyphosphate ◽  
Economic Viability ◽  
Growth Stages ◽  
Maximum Increase ◽  
Technical And Economic Analysis

RESUMO – O objetivo deste trabalho foi realizar uma análise técnica e econômica da aplicação foliar de polifosfatode amônio na cultura do milho, bem como seus efeitos nos componentes de produtividade da cultura. O delineamentoexperimental utilizado foi o de blocos casualizados com quatro repetições em arranjo fatorial 3 x 3 x 4. Sendo, 3 safrasagrícolas, 3 estádios de aplicação (V13, VT e o parcelamento no V13 + VT) e 4 doses de polisfosfato de amônio (0,5, 10 e 15 L ha-1). Houve influência positiva das doses de polifosfato de amônio estudadas na produtividade da culturado milho. O máximo incremento de produtividade foi obtido com a aplicação de 5,08 e 1,51 kg ha-1 de P2O5 e N,respectivamente, o que corresponde a 9,54 L ha-1 de polisfosfato de amônio. A resposta positiva independe do ano edo estádio de aplicação. O uso de polisfosfato de amônio apresenta viabilidade econômica sendo que o incremento deprodutividade foi de 534 kg ha-1, foi obtido por meio da aplicação de 7,14 L ha-1 de polisfosfato de amônio. A aplicaçãodo polifosfato de amônio não influenciou estatisticamente os componentes de produtividade estudados.Palavras-chave: Adubação foliar, fósforo, Zea mays.TECHNICAL AND ECONOMIC ANALYSIS OF FOLIAR APPLICATION OF AMMONIUM POLYPHOSPHATE IN MAIZEABSTRACT – The aim of this study was a technical and economic analysis of foliar application of ammoniumpolyphosphate in maize and its effect on crop yield components. The experimental design was a randomized blockwith four replications in a factorial arrangement 3 x 3 x 4, comprising 3 crop seasons, 3 growth stages (V13, VTand the splitting in V13 + VT) and 4 doses of ammonium polyphosphate (0, 5, 10 and 15 L ha-1). There was apositive effect of doses of ammonium polyphosphate studied on maize yield. The maximum increase in yield wasobtained with the application of 5.08 and 1.51 kg ha-1 of P2O5 and N, respectively, corresponding to 9.54 L ha-1 ofammonium polyphosphate. The positive response was independent of the year and the growth stages. The use ofammonium polyphosphate presents economic viability and the increase in yield was 534 kg ha-1 by applying 7.14 Lha-1 of ammonium polyphosphate. The application of ammonium polyphosphate not statistically affected the yieldcomponents studied.Keywords: foliar fertilization, phosphorus, Zea mays.

ANÁLISE TÉCNICA E ECONÔMICA DA APLICAÇÃO FOLIAR DE POLIFOSFATO DE AMÔNIO NA CULTURA DO MILHO

2016 ◽  
Vol 15 (3) ◽  
pp. 377
Author(s):  
FABIANO PACENTCHUK ◽  
ITACIR ELOI SANDINI ◽  
MARGARETE KIMIE FALBO
Keyword(s):  
Economic Analysis ◽  
Yield Components ◽  
Positive Response ◽  
Foliar Application ◽  
Maize Yield ◽  
Ammonium Polyphosphate ◽  
Growth Stages ◽  
Maximum Increase ◽  
Technical And Economic Analysis ◽  
Positive Effect

RESUMO – O objetivo deste trabalho foi realizar uma análise técnica e econômica da aplicação foliar de polifosfato de amônio na cultura do milho, bem como seus efeitos nos componentes de produtividade da cultura. O delineamento experimental utilizado foi o de blocos casualizados com quatro repetições em arranjo fatorial 3 x 3 x 4. Sendo, 3 safras agrícolas, 3 estádios de aplicação (V13, VT e o parcelamento no V13 + VT) e 4 doses de polisfosfato de amônio (0, 5, 10 e 15 L ha-1). Houve influência positiva das doses de polifosfato de amônio estudadas na produtividade da cultura do milho. O máximo incremento de produtividade foi obtido com a aplicação de 5,08 e 1,51 kg ha-1 de P2O5 e N, respectivamente, o que corresponde a 9,54 L ha-1 de polisfosfato de amônio. A resposta positiva independe do ano e do estádio de aplicação. O uso de polisfosfato de amônio apresenta viabilidade econômica sendo que o incremento de produtividade foi de 534 kg ha-1, foi obtido por meio da aplicação de 7,14 L ha-1 de polisfosfato de amônio. A aplicação do polifosfato de amônio não influenciou estatisticamente os componentes de produtividade estudados.Palavras-chave: Adubação foliar, fósforo, Zea mays.TECHNICAL AND ECONOMIC ANALYSIS OF FOLIAR APPLICATION OF AMMONIUM POLYPHOSPHATE IN MAIZEABSTRACT – The aim of this study was a technical and economic analysis of foliar application of ammonium polyphosphate in maize and its effect on crop yield components. The experimental design was a randomized block with four replications in a factorial arrangement 3 x 3 x 4, comprising 3 crop seasons, 3 growth stages (V13, VT and the splitting in V13 + VT) and 4 doses of ammonium polyphosphate (0, 5, 10 and 15 L ha-1). There was a positive effect of doses of ammonium polyphosphate studied on maize yield. The maximum increase in yield was obtained with the application of 5.08 and 1.51 kg ha-1 of P2O5 and N, respectively, corresponding to 9.54 L ha-1 of ammonium polyphosphate. The positive response was independent of the year and the growth stages. The use of ammonium polyphosphate presents economic viability and the increase in yield was 534 kg ha-1 by applying 7.14 L ha-1 of ammonium polyphosphate. The application of ammonium polyphosphate not statistically affected the yield components studied.Keywords: foliar fertilization, phosphorus, Zea mays.

scholarly journals Effect of organic N-sources on maize yield components

2019 ◽  
pp. 1215-1222
Author(s):  
Gustavo Vicentini Popin ◽  
Arthur Klebson Belarmino dos Santos ◽  
Gregori E. Ferrão ◽  
David Augusto Lourenço ◽  
Marcos Siqueira- Neto
Keyword(s):  
Yield Components ◽  
Maize Yield ◽  
Dry Mass ◽  
Economic Viability ◽  
High Yield ◽  
Organic N ◽  
N Sources ◽  
N Source ◽  
Better Than ◽  
Mineral Sources

Maize is one of the main staple crops of the world but needs large amounts of nitrogen (N) to achieve a high yield. Mineral N fertilization is one of the main production costs to cultivation and organic N sources could be a cost-effective alternative to mineral sources. We hypothesized that organic N sources could replace mineral fertilizer whilst maintaining high yields. Therefore, our study examined the effect of N supplied through organic sources on the yield of maize and its components and evaluated the economic viability of using organic N sources in terms of cost savings of energy resources. A field experiment was carried out in the Southeastern region of Brazil (São Paulo state) on a Typical Acrudox soil with a clay texture. The experiment was set out in a complete randomized block design, with six treatments (five N sources + control) and four replicates. The treatments were: (A) mineral source (urea - Ur); (B) a by-product from the food industry (Fby); (C) biofertilizer from swine manure (Bs); (D) poultry bedding (Pb); (E) cattle manure (Cm); and (F) control (Co - without N). The maize yield components evaluated were plant height (V6 and R2 stages), root dry mass and morphoanatomy (R2 stage) and, at harvest, grains in ears, thousand kernel weight (TKW), productivity and crop residues dry mass. Economic viability was assessed by considering the cost of each N source in relation to gross economic revenues from the sale of corn. Overall, the results showed that only Fby produced better yield components and was more productive than urea. This source also provided the highest economic revenue and the lowest fertilizer cost for each unit produced. The Pb and Cm sources were less productive than the mineral source, but were better than Bs, which was slightly better than the control (without N application). The same pattern of results was found for economic revenue and fertilizer cost. Bs was the most expensive N source and consequently gave the lowest economic returns to farmers. In summary, the N efficiency of the organic sources as an alternative to mineral sources for high-yield maize was ranked as follows: Fby >Ur> Pb > Cm > Bs > Co.

scholarly journals Effect of foliar application of zinc on yield of wheat grown by avoiding irrigation at different growth stages

2016 ◽  
Vol 41 (2) ◽  
pp. 323-334 ◽  
Author(s):  
S Sultana ◽  
HM Naser ◽  
NC Shil ◽  
S Akhter ◽  
RA Begum
Keyword(s):  
Yield Components ◽  
Foliar Application ◽  
Growth And Yield ◽  
Optimum Dose ◽  
Growth Stages ◽  
Root Initiation ◽  
Crown Root ◽  
Yield And Yield Components ◽  
Different Growth Stages ◽  
Heading Stage

A field experiment was carried out at micronutrient experimental field of Soil Science Division, BARI, Joydebpur, Gazipur to study the effect of foliar application of zinc on yield of wheat (BARI gom-25) grown by skipping irrigation at different growth stages of the crop. The experiment was designed in a split plot design on sixteen treatments comprising four irrigation treatments (regular irrigation, skipped irrigation at crown root initiation, skipped irrigation at booting stage and skipped irrigation at grain filling stages of wheat growth) and four foliar application of zinc (0.0%, 0.02%, 0.04% and 0.06% of zinc). Zinc Sulphate Monohydrate (ZnSO4. H2O) was used as a source of Zn. The interaction effect of irrigation and foliar application of zinc significantly influenced the yield and yield components of wheat. The highest yield (5.59 t ha-1) was recorded in normal irrigation which was identical with skipping irrigation at flowering and heading stage with 0.06% foliar application of zinc. Skipping irrigation at crown root initiation stage had the most negative effect on growth and yield. Skipping irrigation at flowering and heading stage of wheat with 0.04% foliar application of zinc gave the identical yield in regular irrigation with 0.04% and 0.06% foliar application of zinc. Thus, foliar application of zinc played a major role on yield and yield components of wheat at later stages of growth. The response of foliar application of Zn was positive and quadrate in nature. The optimum dose was appeared as 0.04% foliar application of zinc for grain yield of wheat in the study area of Joydebpur, Gazipur (AEZ-28).Bangladesh J. Agril. Res. 41(2): 323-334, June 2016

Effect of algae Ecklonia maxima extract (Kelpak SL) on yields of common wheat, durum wheat and spelt wheat

2019 ◽  
Vol 74 (1) ◽  
pp. 5-14
Author(s):  
GRZEGORZ SZUMIŁO ◽  
LESZEK RACHOŃ ◽  
BARBARA KROCHMAL-MARCZAK
Keyword(s):  
Triticum Aestivum ◽  
Durum Wheat ◽  
Common Wheat ◽  
Yield Components ◽  
Grain Quality ◽  
Foliar Application ◽  
Control Treatment ◽  
Favourable Effect ◽  
Ecklonia Maxima ◽  
Spelt Wheat

The 3-year experiment was concerned with the response of spring forms of common wheat (Triticum aestivum L. subsp. aestivum), durum wheat (Triticum durum Desf.) and spelt wheat (Triticum aestivum subsp. spelta L. em. Thell.) to the foliar application of a plant growth stimulant (extract from marine algae Ecklonia maxima), with the commercial name of Kelpak SL (GS), as compared to control treatment (C). The following parameters were analysed: yield of grain, yield components (number of ears, weight of 1000 kernels, number and weight of kernels per ear) and physical indicators of grain quality (test weight, uniformity and vitreosity of grain). The study showed that the level of yielding and the yield components were related primarily with the wheat genotype, but they depended also on the agro-climatic conditions and on the algae extract and control experimental treatments. The application of algae extract, compared to the control, caused a significant increase in the yields of the spring wheat species under study, on average by 7.0%. Canopy spraying with algae extract had a favourable effect on the number of ears, on he number and weight of kernels per ear, but it had no effect on the weight of 1000 kernels. The grain quality of durum wheat, spelt wheat and common wheat was affected more strongly by the weather conditions in the successive years of the study and by the genotype than by the foliar application of algae extract. The spelt genotypes were characterised by lower yields and lower grain quality than common wheat and the durum wheat genotypes.

Effect of Biochar on Maize Yield and Yield Components in Rainfed Conditions

2018 ◽  
Author(s):  
Zafar Ullah ◽  
Muhammad Shahbaz Akmal ◽  
Muzaffar Ahmed ◽  
Mohammed Ali ◽  
Aurangzaib Zaib Khan ◽  
...  
Keyword(s):  
Yield Components ◽  
Maize Yield ◽  
Yield And Yield Components ◽  
Rainfed Conditions

Technical and economic analysis of an advanced multi-stage flash crystallizer for the treatment of concentrated brine

Desalination ◽  
2021 ◽  
Vol 503 ◽  
pp. 114925
Author(s):  
David von Eiff ◽  
Pak Wai Wong ◽  
Yonggang Gao ◽  
Sanghyun Jeong ◽  
Alicia Kyoungjin An
Keyword(s):  
Economic Analysis ◽  
Multi Stage ◽  
Technical And Economic Analysis
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