Nutrient absorption on container-cultured fig tree [Ficus carica] 'Masui Dauphine' with straight line training
2009
Kito, I.(Aichi-ken. Agricultural Research Center, Nagakute (Japan)) | Uebayashi, Y. | Narita, A. | Manago, N.
In order to improve fertilization of container-cultured fig tree with straight line training, the nutrient absorption on cultivar 'Masui Dauphine's three years old trees was analytically investigated in several growing stages. 1. In a growing period from bud breaking to leaf fall, the amounts of dry weight increased by 3.81 kg. The rate of bearing shoots dry weight had 78% and it was equal to field-cultured fig tree. 2. The contents of 5 major mineral elements (D.W. %) in current organs were high in the early stage, and lowered as figs grew up. In old organs, the rate kept at low level and had little seasonal change. 3. Nitrogen content was large in bearing shoots at fruit set and it was larger than other mineral elements in early growing stage. The content of potassium was large in fruit and it was absorbed from fruit set to harvest. Phosphorus, calcium and magnesium were absorbed throughout growing period. 4. The annual absorption of 5 major elements by fig tree (as the yield of 3.3 t/10 a) was estimated at N:10.8 kg, P2O5:5.6 kg, K2O:15.9 kg, CaO:19.8 kg, MgO:7.7 kg. From these results, the nutrient absorption from bud breaking to leaf fall on container-cultured fig tree 'Masui Dauphine' with straight line training was proved. It is available for improvement in fertilization of container-cultured fig tree and application to field culture.
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