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Growth response of container grown Japanese azalea and Euonymus and concentration of nitrates and phosphates in the runoff water under different irrigation and fertilization

100%

Matysiak B.

Journal of Horticultural Research

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2015

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tom 23

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nr 1

2

Dynamics of macronutrient contents in the substrate with localized placement of controlled release fertilizer Osmocote Plus in the growing of pepper (Capsicum annuum L.)

100%

Komosa A., Golcz A.

Acta Agrophysica

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2009

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tom 14

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nr 1[170]

Pot experiment was carried out with the growing of pepper (Capsicum annuum L.). Before vegetation, controlled release fertilizer Osmocote Plus (10-11-18) was placed on the bottom of the pot that was then filled with peat substrate. The nutritive components embodied in this type of fertilizer are slowly released during 5-6 months. The dynamics of the macroelement contents in the peat substrate was analysed as the effect of Osmocote Plus (10-11-18) fertilizer application. It was shown that the use of localized placement of Osmocote Plus (10-11-18) fertilizer does not sufficiently enrich the substrate with nitrogen (N-NH4 and N-NO3), phosphorus and potassium. The maximal content of these components in relation to the applied rates showed the following values: (N-NH4+N-NO3) - 15.5%; P - 8.0% and K - 15.1%. The values were revealed in the final period of growing (September-October). Optimal content of magnesium in the substrate which was maintained throughout the whole growing period was not only the result of the application of Osmocote Plus (10-11-18), but it was also caused by the presence of magnesium in the lime fertilizer used for the liming of peat and by the water used for irrigation. It was found that localized placement of fertilizer in the substrate caused not only some problems in maintaining optimal nutrient resource level in the substrate for plants, but it also created many methodological problems. It refers to the method of sampling substrate for analyses, to the release of components from the fertilizer granules during extraction, and to the interpretation of results. The problem of substrate analyses with the use of slow-release fertilizers requires further methodological studies.

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Response of three ornamental plant species to inoculation with arbuscular mycorrhizal fungi depending on compost addition to peat substrate and the rate of controlled release fertilizer

80%

Matysiak B., Falkowski G.

Journal of Fruit and Ornamental Plant Research

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2010

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tom 18

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nr 2

321-333

controlled release fertilizer (CRF) on mycorrhizal colonization, nutrient acquisition, and growth of Physocarpus opulifolius, Spiraea japónica and Potentilla fruticosa was investigated in a container experiment. The AMF treatments consisted of a commercial inoculum Endorize-Mix and non-inoculated (non- AMF) control. Compost was mixed with peat at different rates (0, 10 and 20% v/v). The CRF was applied at 100 and 50% of the manufacturer's recommended rate. Shoot fresh weights of all three species were affected by mycorrhizas the first year they were grown in containers. Differences between AMF and non-AMF plants were less significant in the second year. In the first year, species growth response to AMF inoculation was positive for P. fruticosa, which was not dependent on CRF rate and compost addition to substrate. Species growth response to AMF inoculation ranged from neutral to negative in the first year for P. opulifolius and S. japonica depending on the CRF rate and compost addition to substrate. Mycorrhiza development was generally supported by increasing the rate of compost in peat substrate and suppressed under the recommended rate of CRF. AMF inoculation affected P content in plant tissue of all species, with a higher P content in AMF than in non-AMF plants, regardless of the rate of CRF. However, the increased level of mycorrhizal colonization caused by AMF inoculum and higher phosphorus content in the leaves of all tested species did not correspond with higher biomass of plants. The greater participation of compost was in peat substrate, the more phosphorus and potassium contained all tested species. Shoot nitrogen content was not affected by AMF nor compost addition to peat substrate.

Ograniczanie wyników

1 Acta Agrophysica

1 Journal of Fruit and Ornamental Plant Research

1 Journal of Horticultural Research

2 Matysiak B.

1 Falkowski G.

1 Golcz A.

1 Komosa A.

1 2015

1 2010

1 2009

Growth response of container grown Japanese azalea and Euonymus and concentration of nitrates and phosphates in the runoff water under different irrigation and fertilization

Dynamics of macronutrient contents in the substrate with localized placement of controlled release fertilizer Osmocote Plus in the growing of pepper (Capsicum annuum L.)

Response of three ornamental plant species to inoculation with arbuscular mycorrhizal fungi depending on compost addition to peat substrate and the rate of controlled release fertilizer