Effect of organic fertilizer and nano calcium spray on growth, yield and storage characteristics of fig fruits cv. waziri (2507.11578v1)

Abstract: This study was carried out to estimate the effect of organic fertilizer and Nano Calcium spray on the growth, yield, and storage of fig fruits cv. Waziri. It was conducted in the village of Kani Sard in the Sharbazhir district near the Sitak area. This is about 35 km northeast of the center of Sulaymaniyah. This study was conducted at 54 plants with three-year-old fig trees cultivated using the cordon method during the 2024 growth season. The controlled environment of the plastic house enabled a precise evaluation of how different fertilizer treatments affected plant development, fruit traits, and post-storage fruit quality. A randomized complete block design (R.C.B.D.) factorial laid out within two main factors: Bio Health fertilizer applied at three levels (0, 15, and 30 g tree-1) and Nano Calcium applied at three concentrations (0, 75, and 150 mg L-1). The Bio Health fertilizer was applied to the plant in the soil, and Nano Calcium as the foliage with a 16-liter backpack sprayer until completely wet. The fertilizer was supplied in two batches during the growing season, with sprayed in three batches, including the first added (16/4/2024) and the second on (16/5/2024), and the first spraying after a week of fruit holding (25/5/2024). The second spray was after 15 days of the first one, and the third after 15 days of the second spraying. The study reached the following results.