Influence of the year characteristics and the different fertilization levels on the structural elements of wheat yield

Kuneva, V.; Bazitov, R.; Stoyanova, A.

doi:10.15547/ast.2016.03.041

Cited by 2 publications

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“…Application of mineral and foliar fertilization has the strongest effect on yield. Fertilization (expressed by the sum of the squared deviations relative to the total variation) has the most significant influence on the yields -96.83% of the total variation in the data results from this factor (Koteva et al, 2014;Kuneva and Bazitov, 2014;Kuneva et al, 2015;Toncheva, 2016;Traykov et al, 2017;. The absolute mass of the grain, the weight of the grain in one cob are signs that are directly related to productivity.…”

Section: Resultsmentioning

confidence: 99%

Research on the effect of different types of fertilization on the maize (Zea mays L.)

Ivanova

Plamenov²,

Naskova³

et al. 2023

AJTUV

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Maize is the cereal crop with the greatest productive potential and production in the world. A field research experiment was conducted in the field settings of the Department of "Plant Production" at the Technical University of Varna, to evaluate the effect of foliar fertilizers on the productivity and quality of Dekalb maize hybrids. Four fertilizer variants were examined and the following biometric parameters were assessed: grain yield, weight per 1000 grains, length of cob, number of rows in cob, number of grains in cob, number of grains per row, weight of grain in cob and weight of the cob. A biochemical analysis of the maize grain was performed and the content of protein, starch and fat was determined. It was established that the combined pairing of soil and foliar fertilization leads to increased productivity and enhanced biometric parameters under study, with the highest values being obtained in the variant ammonium nitrate (rate of 12 kg/dа) + 250 ml/dа NPK 2.5 SO3 with composition 3.0 N: 1.5 P: 10 K: 2.5 SO3 + 250 ml/da SO3 10% Zn, 3% N (sulfides with zinc and nitrogen). It was also ascertained, through the use of the same combination, that the maize hybrids under examination contain the highest amount of protein. Provided, from the findings of the experiment, is a conclusive evidence, that the combination of sowing soil fertilization with ammonium nitrate (rate of 12 kg/da) and two foliar fertilizers (rate of 250 ml/da) – NPK 2.5 SO3 + SO3, 10% Zn, 3% N improved the productivity and quality of the investigated Dekalb maize hybrids.

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Section: Resultsmentioning

confidence: 99%

Research on the effect of different types of fertilization on the maize (Zea mays L.)

Ivanova

Plamenov²,

Naskova³

et al. 2023

AJTUV

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“…In our country, for a large part of the country, the temperature conditions are favorable for its cultivation, but the limiting factor is the precipitation, which is why it is of crucial importance (Koteva et al, 2014). Maize is distinguished by a very high genetically determined productivity, the realization of which is influenced by the region with its characteristic soil and climate conditions and the applied agro technical measures, among which the mineral fertilization is of dominant importance (Nenova, 2010;Kuneva, Bazitov, 2014;Traikov et al, 2017;Glogova, 2018). The interest in corn is based on its wide and varied use not only as feed for farm animals, but also in a number of productions of the food and chemical industries.…”

Section: Introductionmentioning

confidence: 99%

Statistical analysis of the height of hybrid plants Kn-517 and Kn-613 depending on mineral fertilization and crop density

Koynarska,

Goranovska,

Glogova

2023

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The study was conducted between 2020 and 2022 in the experimental field of the Maize Research Institute-Knezha. The subject of the study is the following hybrids: Kn-517 group 500-600 FAO with a density 5500 p/da and 6000 p/da; Kn-613 group over 600 FAO with a density of 5200 p/da and 5700 p/da. The cultivated hybrids of each variation measured the height of 10 plants. The maize was grown under control variant T0 – without fertilization and two fertilization levels: Т1 – N8.5P5.4K6.4 and T2 – N17P10.8K12.8. On average for the period 2020-2022 on the Kn-517 hybrid the highest average height of xaverage = 268.33 cm was measured at a density of 6000 p/da and fertilized with N17P10.8K12.8. The best result of xaverage = 276.00 cm at the average height in years was in 2021 and the density was 5500 p/da. In the same year, seed density and fertilization with N17P10.8K12.8 was measured maximum height Max = 285.00 cm. The coefficient of variation was the lowest of CV=3.61% for fertilization with N8.5P5.4K6.4 and the highest of CV=4.77% for fertilizer N17P10.8K12.8 and a density 5500 p/da. This quantity changed by years from CV=2.57% in 2020 to CV=4.35% in 2022 and 6000 p/da. On average for the period 2020-2022 the Kn-613 hybrid for both densities of 5200 p/da and 5700 p/da was the largest average height of xaverage = 279.33 cm and xaverage = 279.67 cm measured by fertilizing with N17P10.8K12.8. The study indicator had the best score in 2021. In the same year a maximum height of Max=296.00 cm was measured at 5700 p/da and fertilization with N17P10.8K12.8. The coefficient of variation changed from CV=3.37% for N0P0K0 to CV=4.90% for N17P10.8K12.8 and a density of 5200 p/da. For the years this quantity ranged from CV=2.53% in 2022 to CV=3.67% in 2021 and 5200 p/da.

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Influence of the year characteristics and the different fertilization levels on the structural elements of wheat yield

Cited by 2 publications

References 0 publications

Research on the effect of different types of fertilization on the maize (Zea mays L.)

Research on the effect of different types of fertilization on the maize (Zea mays L.)

Statistical analysis of the height of hybrid plants Kn-517 and Kn-613 depending on mineral fertilization and crop density

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