Effect of Potassium Humate on Growth and Yield of Potato ‎‎(Solanum Tuberosum L.) Under Coastal Region Conditions ‎

Mitiady Boras(1) Riad Zedan(1) and Reem Issa*(1)

(1). Department of Horticulture, Faculty of Agriculture, Tishreen University, Lattakia, Syria.

(*Corresponding author: Eng. Reem Issa. E-Mail: reem.issa12a@gmail.com).

Received: 07/02/2019                               Accepted: 05/07/2019


The research aimed to study the effect of potassium humate treatments on growth and yield of the potato ‘Spunta’.  The experiment was carried out during spring season of 2018 in Banias. The experiment included four treatments (control without treatment, spraying plants, soaking the tubers, spraying the plants and soaking the tubers). The experiment included 4 treatments with four replicates for each treatment and at a rate of fifteen plants  for each, according to randomized complete block design. In general, the results showed that potassium humate caused stimulation of vegetative growth. This was shown in accelerating the germination of tubers, increasing plant lengths, number of leaves, leaf area, leaf area index, number of tubers and plant yield. This effective was more evidence in the treatment of  tuber  soaking + spraying of plants. This treatment showed significant superiority in leaf area, plant  yield, dry matter and starch contents of tubers. The highest values which were recorded compared to other treatments, in terms of dry matter 19.6%, and the percentage of starch 13.5%, compared to 14.9% and 9.3% for control.

Key words: Potato, Potassium humate, Yield traits.

Full paper in Arabic: PDF