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Effect of compost treatments on the growth of the strain field area of apple trees, and on the number of fruits per tree
The effect of different compost doses on the nutrient contents of the soil (in depth of 0-30) were measured in an apple orchards (organic and integrated). Growth of the strain field area of different apple species (Golden Delicious and Pinova) and the number of fruits per tree were determined (2010-2012).
At the start of the experiment the strain field area of the marked control and treated trees did not differ from each other, therefore their strength could be considered statistically uniform. In 2010 no composting effect could be effect observed (the first application was performed after the crop binding). In 2011, there were no apples on the trees. The reason of the crop failure was the early spring frost, which caused damage during the period of flowering. In 2012, a significant increase was observed in the number of apples in parallel with the increase of the compost doses (primarily in the organic). During the three years of the field experiment we concluded that, all the compost doses justifiably increased the strain field area – the complex index of vegetative performance of the trees – in case of both apple varieties in the organic cultivation (where mineral fertilization is excluded). It was demonstrated that the compost doses and the bigger nutrient source together could favourably offset the decreasing effect of spring frost on fruit binding in the integrated culture.
| Copyright: | © European Compost Network ECN e.V. | |
| Quelle: | Orbit 2014 (Juni 2014) | |
| Seiten: | 0 | |
| Preis inkl. MwSt.: | € 0,00 | |
| Autor: | Anita Szabo  Andrea Balla Kovács Dr. Vágó Imre | |
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