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Soil organic carbon in Serbian Mountain Soils: effects of land use and altitude

100%

Manojlovic M., Cabilovski R., Sitaula B.

Polish Journal of Environmental Studies

2011

tom 20

nr 4

The aim of our research was to investigate the concentration and stock of organic carbon (SOC) in soils of Golija Mountain, Serbia, under different land uses (grassland, forest, and arable land) at different altitudes (1,500 m, 1,000 m, and 500 m) and at two soil depths (0-10 cm and 10-20 cm), and to assess resilience of soil organic matter to decomposition under each of the ecosystems by measuring the amount of SOC and soil respiration rate. The results show the highest SOC stock under forest and lowest under grass, a decreasing trend in SOC from higher to lower altitudes, the lowest cumulative soil respiration under forest and the highest under grass. This study demonstrates that the land use system and altitude are important factors affecting SOC.

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Interactions between nitrogen fertilization and apple fruit thinning with NAA

88%

Milic B., Cabilovski R., Keserovic Z., Magazin N., Tarlanovic J.

Acta Scientiarum Polonorum. Hortorum Cultus

2017

tom 16

nr 3

The objective of this research was to determine the effects of chemical thinning with α-naphthaleneacetic acid (NAA) and nitrogen (N) fertilization, as well as their interaction in relation to fruit set and physical properties of apple cv. Golden Delicious Reinders®. Nitrogen rates used were 30 and 60 kg·ha−1 N applied at the pink bud stage. NAA for fruit thinning was applied at the rates of 10, 12 and 14 µl·l−1. Fruit set was increased by increasing the amount of N applied while the efficacy of NAA for fruit thinning was not linearly correlated to the concentration of the chemical. The total number of fruits per tree was inconsistently reduced in NAA treatments at 30 and 60 kg·ha−1 N, while total yield was reduced by thinning at 60 kg·ha−1 N, meaning that apple trees are more responsive to NAA application at higher N supply. At sufficient N supply, fruits responded more intensively to thinning with NAA by increasing their growth. Thinning with NAA caused a significant decrease in flesh firmness only in fruits from unfertilized plot.

Ograniczanie wyników

1 Acta Scientiarum Polonorum. Hortorum Cultus

1 Polish Journal of Environmental Studies

2 Cabilovski R.

1 Keserovic Z.

1 Magazin N.

1 Manojlovic M.

1 Milic B.

1 Sitaula B.

1 Tarlanovic J.

1 2017

1 2011

Wyniki wyszukiwania

Soil organic carbon in Serbian Mountain Soils: effects of land use and altitude

Interactions between nitrogen fertilization and apple fruit thinning with NAA