Foliar Application of Humic Acid Improves Growth and Yield of Chilli (Capsicum annum L.) Varieties
Foliar Application of Humic Acid Improves Growth and Yield of Chilli (Capsicum annum L.) Varieties
Jawad Ali Jan1, Ghulam Nabi1, Maqsood Khan1,2*, Shehzad Ahmad1, Peer Sikandar Shah1, Saddam Hussain1 and Sehrish1
ABSTRACT
Chilli is an important agricultural crop, cultivated all over the world. It has high nutritional value and mostly used as a spice in the food. Nutrients are applied to the crop plants in different farms to improve its production and nutritional value. This experiment was conducted at Agriculture Research Institute (ARI) Tarnab, Peshawar during summer 2016. Two factors i.e. Chilli varieties (Magma and High fly) and humic acid levels (0, 25, 50, 75 and 100 g L-1) were applied in the field during experiment. The results of the experiment showed that High fly variety took minimum days to produce flowering (33 days), maximum numbers of leaves plant-1 (208.93), plant height (42.27 cm), stem diameter (1.60 cm), number of fruit plant-1 (52.53), yield plant-1 (184.61 g) and total yield (3.69 t ha-1), while maximum fruit weight (3.65 g), fruit volume (9.47 cm3) and fruit diameter (12.0 mm) were noted in variety Magma. In case of humic acid levels, maximum number of leaves plant-1 (243.67), branches plant-1 (5.50), plant height (47.33 cm), stem diameter (1.83 cm), number of fruit plant-1 (57.50), yield plant-1 (204.50 g) and total yield (3.93 t ha-1) were recorded in 50 g humic acid L-1 as a foliar spray. Whereas early flowering (33 days), fruit weight (3.81 g), fruit diameter (13.82 mm), fruit volume (11.33 cm3) were found in plants treated with 100 g humic acid L-1. It can be concluded that aerial application of humic acid at 50 g L-1 and variety High fly variety give best results under the climatic conditions of Peshawar.
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