Document Type : Research Article
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Abstract
Abstract
Balanced nutrition and soil organic mater are among most important factors affecting yield and quality of grape (Vitis vinifera cv.peykani). Humic acid as an organic acid derived from humus and other organic sources, in accompany with zinc, and acetic acid can reduce deficiency symptoms in grape. To study the effects of zinc, humic acid and acetic acid on yield and yield components, an experiment with 8 treatments and 3 replications in a randomized complete block design was conducted. Treatments included zinc(0 and 0.005 ), humic acid (0 and 0.003), and acetic acid (0 and 0.01). Results showed that all treatments increased yield compared to control significantly (P
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