The Effect of Magnetic Water and Irrigation Intervals on the Amount of the Nutrient Elements in Soil and Aerial Parts of Periwinkle (Catharanthus roseus L.)

Document Type: Original Article


1 Department of Horticulture, Rasht Branch, Islamic Azad University, Rasht, Iran

2 Yanug Researchers and Elite Club, Rasht Branch, Islamic Azad University, Rasht, Iran


The periwinkle with the scientific name of Catharanthus roseus is one of the most important ornamental plants of the Apocynaceae family. In order to evaluate the effect of different waters on the amount of the nutrient elements in soil and aerial parts of Catharanthus roseus, a factorial experiment based on completely randomized design was conducted in 3 replications. Experimental treatments were including: type of water (magnetized tap water, tap water, magnetized well water and well water) and irrigation intervals (2, 4, 6 and 8 days). In this study, the attributes such as display life
, plant height, leaf number, the amount of nitrogen, phosphorus and potassium of the soil and the plant were evaluated. According to results, the maximum display life (42.23 days), plant height (21.71 cm) and leaf number (165.88) were related to the treatment of irrigation with the magnetized tap water with2 days interval. The maximum amount of nitrogen of the plant was related to the treatment of irrigation with the magnetized well water +2 days
interval (0.32 mgl-1). The treatments of irrigation with the non- magnetized tap and well water with 8 days interval had the maximum amount of nitrogen of the soil. The maximum amount of potassium of the plant with 56.21 mgl-
1was obtained in the treatment of irrigation with the magnetized well water with 2 days interval. The maximum amount of phosphorus of the plant with 39.5 mgl-1and then 38.8 mgl-1were related to the treatments of irrigation
with the magnetized well water + 2 days interval and irrigation with the magnetized tap water+ 2 days interval.


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