ScholarWorks@경상국립대학교

초록

This study was carried out to examine the effect of soil amendment treatments [(organic fertilizer: 20 kg tree−1; compound fertilizer+wood-char fertilizer: compound fertilizer 4 kg tree−1+wood-char 2 kg tree−1; lime fertilizer:3 kg tree−1; mixed fertilizer: compound fertilizer 1 kg tree-1+organic fertilizer 10 kg tree−1+wood-char 1 kg tree−1; control (no fertilizer)] on flowering and fruit characteristics in chestnut (Castanea crenata S. et Z.) orchards in Jinju and Sancheong, Gyeongsangnam-do. Diameter of fruiting shoot increased generally after soil amendment treatments compared with the control, while number of leaf, female and male flowers were not affected by the treatments. Nut weight increased after soil amendment treatments in Jinju, but was not affected by the treatments in Sancheong. There was a positive correlation between soil pH (r=0.91) or exchangeable Ca2+ (r=0.99) and nut weight in Jinju and a positive correlation (r=0.97) between organic carbon content and soluble solid concentration, while a negative correlation (r=-0.92) between exchangeable Mg2+ and soluble solid concentration of nuts in Jinju. However, the nut weight and soluble solid concentration in Sancheong were not correlated with soil properties. The results indicate that the characteristics of flowering and nuts in chestnut orchards depend on soil properties after soil amendment treatments between regions which show better responses on poor sites than on good sites.

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