Doses of NPK formulations combined with humic substance at sowing in barley cultivars

ABSTRACT This study aimed to evaluate NPK formulations used in fertilization at sowing associated with and without humic substances (HS) in terms of the agronomic characteristics and grain quality for malt from the barley cultivars BRS Brau and BRS Elis, focusing on the agricultural years 2015 and 2016 in Guarapuava, PR. The experimental design was a randomized block, in a factorial 5 x 2 format, with five fertilizations: 0 kg ha-1 (control); 100 kg ha-1 of NPK; 100 kg ha-1 NPK + HS; 250 kg ha-1 of NPK; and 250 kg ha-1 NPK + HS, using two barley cultivars, BRS Brau and BRS Elis, replicated four times. The variables evaluated were hectoliter weight, grain yield, malt quality by means of sort 1, 2 and 3, and the protein percentage. The data evaluated were submitted to joint variance analyses for the agricultural crops, and the means were compared through non-orthogonal contrasts. The use of humic substances in NPK formulations provides an increase in grain yield, and its effect is observable in the lower doses of NPK + HS formulations. The lower dose of NPK formulation combined with the humic substance reduced class 1 and increased class 3 in agricultural crops from the years 2015 and 2016. The 2016 crop, with favorable climatic conditions, presented improved hectoliter mass, grain yield and quality of the barley grains, based on commercial grade.

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Export of N, P and K in barley subjected to fertilizer doses formulated with and without humic substance at sowing

Acta Scientiarum Agronomy ◽

10.4025/actasciagron.v41i1.42690 ◽

2019 ◽

Vol 41 (1) ◽

pp. 42690 ◽

Cited By ~ 1

Author(s):

Kathia Szeuczuk de Oliveira ◽

Marcelo Cruz Mendes ◽

Gustavo Arruda Ilibrante ◽

Noemir Antoniazzi ◽

Alan Junior Stadler ◽

...

Keyword(s):

Humic Substance ◽

Climatic Conditions ◽

Agricultural Crop ◽

Nitrogen And Phosphorus ◽

Barley Cultivars ◽

Growing Seasons ◽

Phosphorus And Potassium ◽

Barley Grains ◽

The City ◽

Phosphorus Levels

The aim of this study was to evaluate the effect of nitrogen fertilization with and without humic acid in barley cultivars on the export of nitrogen, phosphorus and potassium grains. The experiment was performed in the city of Guarapuava, PR, during the 2015 and 2016 growing seasons. The experimental design was in RCB in factorial 5 x 2, with the following sowing fertilization (kg ha-1): 0, 100 NPK, 100 NPK+HS, 250 NPK, 250 NPK+HS and two cultivars, BRS Brau and BRS Elis. The dose of 250 kg NPK with humic substance increased the nitrogen export to barley grains, with the highest levels occurring in the BRS Brau cultivar under favorable climatic conditions. Under favorable climatic conditions, the export of phosphorus to barley grains in the agricultural crop was not influenced by the humic substance, with the highest levels occurring in the BRS Brau cultivar. The dose of 100 kg NPK with humic substance increased the export of potassium to barley grains, with the highest levels occurring in the BRS Brau cultivar regardless of climatic condition. There were correlations between nitrogen and phosphorus levels in grains and between phosphorus content and grain yield.

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Inoculum pressure and the development of stem rust epidemics in barley

Australian Journal of Agricultural Research ◽

10.1071/ar9910769 ◽

1991 ◽

Vol 42 (5) ◽

pp. 769 ◽

Cited By ~ 10

Author(s):

R Dill-Macky ◽

RG Rees ◽

GJ Platz

Keyword(s):

Grain Yield ◽

Field Experiments ◽

Initial Inoculum ◽

Barley Cultivars ◽

Yield And Quality ◽

Rust Severity ◽

Grain Yield And Quality ◽

Moderately Resistant ◽

Different Levels ◽

Inoculum Pressure

The effects of inoculum pressure on the development of epidemics of Puccinia graminis tritici in two barley cultivars with different levels of resistance were examined in two field experiments. Treatments were established by inoculation of foci within plots and/or the strategic use of fungicides. Additional 'rust-free' treatments were maintained to provide comparisons of grain yield and quality. Relationships between rust severity, rust incidence and grain yield and quality were also examined. Initial inoculum levels were important in determining disease severity and incidence for individual epidemics; however, severe epidemics developed under most 'rusted' treatments of the susceptible cultivar Galleon and reduced grain yield by up to 58%. Epidemics under corresponding treatments of the moderately resistant cultivar Grimmett were less severe, and the value of the resistance was evident with yield losses not exceeding 12%. Yield reductions were usually associated with reduced grain size and weight.

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Influence of interactions of barley cultivars with soil and fertilizer K, and soil pH on grain yield and quality

Plant and Soil ◽

10.1007/bf02182902 ◽

1985 ◽

Vol 86 (2) ◽

pp. 265-271 ◽

Cited By ~ 3

Author(s):

A. C. Dick ◽

S. S. Malhi ◽

P. A. O'Sullivan ◽

D. R. Walker

Keyword(s):

Grain Yield ◽

Soil Ph ◽

Barley Cultivars ◽

Yield And Quality ◽

Grain Yield And Quality

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Grain yield and quality of two-row winter barley cultivars on an acid soil

Journal of Central European Agriculture ◽

10.5513/jcea01/20.1.2191 ◽

2019 ◽

Vol 20 (1) ◽

pp. 238-250 ◽

Cited By ~ 1

Author(s):

Vera ĐEKIĆ ◽

Jelena MILIVOJEVIĆ ◽

Milomirka MADIĆ ◽

Vera POPOVIĆ ◽

Snežana Branković ◽

...

Keyword(s):

Grain Yield ◽

Acid Soil ◽

Winter Barley ◽

Barley Cultivars ◽

Yield And Quality ◽

Grain Yield And Quality

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Stem rust epidemics and their effects on grain yield and quality in Australian barley cultivars

Australian Journal of Agricultural Research ◽

10.1071/ar9901057 ◽

1990 ◽

Vol 41 (6) ◽

pp. 1057 ◽

Cited By ~ 13

Author(s):

R Dill-Macky ◽

RG Rees ◽

GJ Platz

Keyword(s):

Grain Size ◽

Grain Yield ◽

Stem Rust ◽

Puccinia Graminis ◽

Seedling Resistance ◽

Barley Cultivars ◽

Yield And Quality ◽

Epidemic Development ◽

Grain Yield And Quality ◽

Field Plots

The progress of epidemics of Puccinia graminis f. sp. tritici strain 343-Anz-1,2,3,5,6 was examined in field plots of the Australian barley cultivars Clipper, Corvette, Galleon, Grimmett, Prior and Schooner. The barley Purple Nudum, reported to possess seedling resistance to Puccinia graminis f. sp. tritici, and the susceptible wheat Oxley were also examined. Additional rust-free treatments were maintained to provide comparisons of grain yield and quality. Differences in the rate of epidemic development between cultivars were found. Moderate epidemics developed in Clipper, Schooner, Grimmett and Prior and no significant losses in yield were detected in Grimmett or Prior. Severe epidemics developed in Galleon, Corvette and Oxley and reduced grain yield by about half. Yield reductions were generally associated with reduced grain size and weight.

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Influence of interactions of barley cultivars with soil and fertilizer K, and soil pH on grain yield and quality

Plant and Soil ◽

10.1007/bf02372494 ◽

1986 ◽

Vol 92 (3) ◽

pp. i-i

Author(s):

A. C. Dick ◽

S. S. Malhi ◽

P. A. O'Sullivan ◽

D. R. Walker

Keyword(s):

Grain Yield ◽

Soil Ph ◽

Barley Cultivars ◽

Yield And Quality ◽

Grain Yield And Quality

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The Development of Winter Wheat Yield and Quality under Different Fertilizer Regimes and Soil-Climatic Conditions in the Czech Republic

Agronomy ◽

10.3390/agronomy10081160 ◽

2020 ◽

Vol 10 (8) ◽

pp. 1160

Author(s):

Lukáš Hlisnikovský ◽

Ladislav Menšík ◽

Eva Kunzová

Keyword(s):

Grain Yield ◽

Grain Quality ◽

Farmyard Manure ◽

Wheat Yield ◽

Climatic Conditions ◽

Mineral Nitrogen ◽

Mineral Fertilizers ◽

Organic Manures ◽

Yield And Quality ◽

Grain Yield And Quality

Farmers must adapt to the changes brought about by the changing climate and market requirements. These adaptations are associated with fertilization—the availability of organic manures and mineral fertilizers and crop rotations. What is the effect of organic manures on wheat and soil? Is it necessary to apply mineral phosphorus P and potassium (K) fertilizers to the wheat? These questions are frequently asked in workshops in different growing areas. To provide a relevant answer on this issue, we evaluated how farmyard manure (FYM), mineral nitrogen (N) applied without phosphorus (P) and potassium (K) fertilizers, and application of NPK affected grain yield, grain quality, and soil properties under different soil-climate conditions (Ivanovice—Chernozem, Caslav—Phaeozem, Lukavec—Cambisol) between 2015 and 2018. The FYM significantly increased grain yield even after three years since being applied and incorporated into the soil in all localities, but its application didnot affect grain quality. In the soil, the FYM significantly increased total nitrogen Nt, P, and K content in all localities and oxidable carbon Cox content in two localities. Mineral nitrogen significantly affected grain yield and quality and increased concentrations of soil N and C, but decreased pH in Caslav. Application of mineral P and K wasnot connected with a positive effect on grain yield and quality, but increased the concentration of these elements in the soil, preventing depletion of these elements from the soil. Maximal yields were recorded when 70–98 kg N ha−1 was applied in Ivanovice, 55–72 kg N ha−1 in Caslav, and 155 kg N ha−1 in Lukavec.

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