Influences of Mineral Nitrogen and Foliar Spraying of Humic Acid on Some Morphological Features and Chlorophyll Content of Lettuce (Lactuca sativa L.)

Authors

  • Ali Mikael K. Omar Department of Horticulture, Faculty of Agriculture, Omar Al-Mukhtar University, Libya
  • Fayrouz A A. Buojaylah Department of Horticulture, Faculty of Agriculture, Omar Al-Mukhtar University, Libya
  • Awadh Almabrouk Zadim Department of Horticulture, Faculty of Agriculture, Omar Al-Mukhtar University, Libya

Keywords:

Lettuce, Nitrogen, Humic Acid, Fertilization, Spraying

Abstract

The current experiment was carried out to investigate the effect of different levels of ground application of mineral nitrogen (0, 60, 120, and 180 kg.ha-1 of urea), and spraying with different levels of humic acid (0, 1, 1.5, and 3 ml.L-1), on some morphological characteristics (Plant height, number of leaves per plant, and leaf area) and chlorophyll content of lettuce plants under the conditions of Al-Jabal Al-Akhdar region, Libya. Findings indicate that increasing the rates of mineral nitrogen and humic acid led to a significant increase in plant height, number of leaves, leaf area, and chlorophyll content of lettuce plants. The treatment with mineral nitrogen and humic acid at a concentration of 180 kg.ha-1 and 3 ml.L-1, respectively, recorded the highest values.

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Published

2024-06-14

How to Cite

K. Omar, A. M., A. Buojaylah, F. A., & Zadim, A. A. (2024). Influences of Mineral Nitrogen and Foliar Spraying of Humic Acid on Some Morphological Features and Chlorophyll Content of Lettuce (Lactuca sativa L.). Silphium Journal of Science and Technology, 1(03). Retrieved from https://j.istc.edu.ly/index.php/sjst/article/view/24

Issue

Vol. 1 No. 03 (2023): January

Section

Articles