This page has only limited features, please log in for full access.
Fertilizer coating can increase the efficiency of N fertilizers and reduce their negative impact on the environment. This may be achieved by the utilization of biodegradable natural coating materials instead of polyurethane-based polymers. The aim of this study was to detect the effect of calcium ammonium nitrate (CAN) fertilizer coated with modified conventional polyurethane enhanced with vegetable oils on the yield and quality of Brassica napus L. compared to CAN fertilizer with a vegetable oil-based polymer and to assess the risks of nitrogen loss. Three types of treatments were tested for both coated fertilizers: divided application (CAN, coated CAN), a single application of coated CAN, and a single application of CAN with coated CAN (1:2). A single application of coated CAN with both types of coating in the growth stage of the 9th true leaf significantly increased the yield, the thousand seed weight, and oil production compared to the uncoated CAN. The potential of using coated CAN may be seen in a slow nitrogen release ensuring the nitrogen demand for rapeseed plants throughout vegetation and eliminating the risk of its loss. The increased potential of NH4+ volatilization and NO3− leaching were determined using the uncoated CAN fertilizer compared to the coated variants. Oil-based polymer coatings on CAN fertilizer can be considered as an adequate replacement for partially modified conventional polyurethane.
Petr Škarpa; Dominika Mikušová; Jiří Antošovský; Milan Kučera; Pavel Ryant. Oil-Based Polymer Coatings on CAN Fertilizer in Oilseed Rape (Brassica napus L.) Nutrition. Plants 2021, 10, 1605 .
AMA StylePetr Škarpa, Dominika Mikušová, Jiří Antošovský, Milan Kučera, Pavel Ryant. Oil-Based Polymer Coatings on CAN Fertilizer in Oilseed Rape (Brassica napus L.) Nutrition. Plants. 2021; 10 (8):1605.
Chicago/Turabian StylePetr Škarpa; Dominika Mikušová; Jiří Antošovský; Milan Kučera; Pavel Ryant. 2021. "Oil-Based Polymer Coatings on CAN Fertilizer in Oilseed Rape (Brassica napus L.) Nutrition." Plants 10, no. 8: 1605.
Phosphorus (P) is an important nutrient in plant nutrition. Its absorption by plants from the soil is influenced by many factors. Therefore, a foliar application of this nutrient could be utilized for the optimal nutrition state of plants. The premise of the study is that foliar application of phosphorus will increase the yield of normal-phytate (npa) cultivars (CDC Bronco a Cutlass) and low-phytate (lpa) lines (1-2347-144, 1-150-81) grown in soils with low phosphorus supply and affect seed quality depending on the ability of the pea to produce phytate. A graded application of phosphorus (H₃PO₄) in four doses: without P (P0), 27.3 mg P (P1), 54.5 mg P (P2), and 81.8 mg P/pot (P3) realized at the development stages of the 6th true leaf led to a significant increase of chlorophyll contents, and fluorescence parameters of chlorophyll expressing the CO2 assimilation velocity. The P fertilization increased the yield of seeds significantly, except the highest dose of phosphorus (P3) at which the yield of the npa cultivars was reduced. The line 1-2347-144 was the most sensible to the P application when the dose P3 increased the seed production by 42.1%. Only the lpa line 1-150-81 showed a decreased tendency in the phytate content at the stepped application of the P nutrition. Foliar application of phosphorus significantly increased ash material in seed, but did not tend to affect the protein and mineral content of seeds. Only the zinc content in seeds was significantly reduced by foliar application of P in npa and lpa pea genotypes. It is concluded from the present study that foliar phosphorus application could be an effective way to enhance the pea growth in P-deficient condition with a direct effect on seed yield and quality.
Petr Škarpa; Marie Školníková; Jiří Antošovský; Pavel Horký; Iva Smýkalová; Jiří Horáček; Radmila Dostálová; Zdenka Kozáková. Response of Normal and Low-Phytate Genotypes of Pea (Pisum sativum L.) on Phosphorus Foliar Fertilization. Plants 2021, 10, 1608 .
AMA StylePetr Škarpa, Marie Školníková, Jiří Antošovský, Pavel Horký, Iva Smýkalová, Jiří Horáček, Radmila Dostálová, Zdenka Kozáková. Response of Normal and Low-Phytate Genotypes of Pea (Pisum sativum L.) on Phosphorus Foliar Fertilization. Plants. 2021; 10 (8):1608.
Chicago/Turabian StylePetr Škarpa; Marie Školníková; Jiří Antošovský; Pavel Horký; Iva Smýkalová; Jiří Horáček; Radmila Dostálová; Zdenka Kozáková. 2021. "Response of Normal and Low-Phytate Genotypes of Pea (Pisum sativum L.) on Phosphorus Foliar Fertilization." Plants 10, no. 8: 1608.
Organic farmers usually do not have the opportunity to address the actual symptoms of deficiency through the foliar application of synthetic fertilization, therefore, the main treatment is realized by green manure crop cultivation and application of organic fertilizers. The aim of this long-term experiment was to compare two different production systems with and without livestock in terms of organic farming, and a control variant with no fertilization was also included (treatment 1). The production system without animal husbandry was based on solely the application of renewable external resources (compost or digestate) (treatment 2) and the same fertilization with the addition of auxiliary substances (AS) (treatment 3). The production system with animal husbandry included utilization of fertilizers produced on the farm (fermented urine or manure) using solely farm fertilizers (treatment 4) and in addition with AS (treatment 5). Each treatment had three replications. This work describes the average yields from four experimental years and five experimental localities. Winter wheat, potatoes, winter wheat spelt and legume-cereal mix with corn were used and examined as model crops during the first four years of this long-term research. The highest average yield of winter wheat grain and potato tubers during the first two years of the experiment were obtained after the treatments 2 (7.1 t/ha grain, 33.9 t/ha tubers) and 3 (7.0 t/ha grain, 34.1 t/ha tubers). The several times higher nitrogen content in applied digestate and compost in comparison with fermented urine and manure was probably the reason for such results. On the contrary, the results obtained from the third (spelt) and fourth (LCM and corn) experimental years favored treatment 4 (5.5 t/ha grain, 4.6 cereal unit/ha) and 5 (5.4 t/ha grain, 4.7 cereal unit/ha) from the long-term point of view. After four experimental years, the presented results supported the application of farm fertilizers as a preferable option. The treatments with additional application of AS did not provide a higher yield, therefore, such an application seems unnecessary.
Jiří Antošovský; Martin Prudil; Milan Gruber; Pavel Ryant. Comparison of Two Different Management Practices under Organic Farming System. Agronomy 2021, 11, 1466 .
AMA StyleJiří Antošovský, Martin Prudil, Milan Gruber, Pavel Ryant. Comparison of Two Different Management Practices under Organic Farming System. Agronomy. 2021; 11 (8):1466.
Chicago/Turabian StyleJiří Antošovský; Martin Prudil; Milan Gruber; Pavel Ryant. 2021. "Comparison of Two Different Management Practices under Organic Farming System." Agronomy 11, no. 8: 1466.
Jiri Antosovsky; Pavel Ryant; Martin Prudil; Milan Gruber; Anna Hammerová. The Effect of Different Organic Fertilizers and Different Localities on Crop Yield in Conditions of Organic Farming. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 2018, 66, 843 -851.
AMA StyleJiri Antosovsky, Pavel Ryant, Martin Prudil, Milan Gruber, Anna Hammerová. The Effect of Different Organic Fertilizers and Different Localities on Crop Yield in Conditions of Organic Farming. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. 2018; 66 (4):843-851.
Chicago/Turabian StyleJiri Antosovsky; Pavel Ryant; Martin Prudil; Milan Gruber; Anna Hammerová. 2018. "The Effect of Different Organic Fertilizers and Different Localities on Crop Yield in Conditions of Organic Farming." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 66, no. 4: 843-851.
Jiri Antosovsky; Pavel Ryant; Martin Prudil; Milan Gruber; Ivana Komprsová. Effect of Localities and organic Fertilizers on Yield in Conditions of Organic Farming. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 2017, 65, 799 -806.
AMA StyleJiri Antosovsky, Pavel Ryant, Martin Prudil, Milan Gruber, Ivana Komprsová. Effect of Localities and organic Fertilizers on Yield in Conditions of Organic Farming. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. 2017; 65 (3):799-806.
Chicago/Turabian StyleJiri Antosovsky; Pavel Ryant; Martin Prudil; Milan Gruber; Ivana Komprsová. 2017. "Effect of Localities and organic Fertilizers on Yield in Conditions of Organic Farming." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 65, no. 3: 799-806.