Evaluation of Magnetic Technology For Vegetable Production under Drip Irrigation System

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El-Dayeim, Dalal El-Tayeb Bashir Nour
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This research was conducted with a view to investigating the effect of magnetic technology on vegetable production under drip irrigation system. The experimental work was conducted in the demonstration farm of the Faculty of Agriculture, U. of K. Shambat. An open field drip irrigation system was installed; the laterals were 40m in length laid at 2m spacing. The built-in (GR) type of emitters was inserted at 50cm spacing. An experimental split plot design was used including the following four treatments: - Magnetized water + Magnetized seeds (Wm Sm). - Magnetized water + None magnetized seeds (Wm Sn). - None magnetized water + Magnetized seeds (Wn Sm). - None magnetized water + None magnetized seeds (Wn Sn). Magnetization was done by fixing small magnetic devices (called magnetrons) at the laterals inlet from the submain. Okra, Jew’s mallow, Rocket were taken as indicator vegetable crops. Each treatment was replicated five times. Random samples of soil (at different depths) and water were analyzed for physical and chemical properties when magnetized and none magnetized. The effect of magnetization was considered with respect to the irrigation system performance and for plant growth attributes. An average value of 94% was recorded for the drip system emission uniformity (Eu) at the beginning of the experiment, this value decreased to average values of 90% and 82% for the magnetized and none magnetized drip lines respectively. This indicates that magnetization reduces the problem of emitters clogging. Magnetization of either irrigation water or seeds showed significant effects on some attributes. However the effect of magnetization on crop production varies according to the treatment and type of crop, viz: in okra, jew’s mallow and rocket the effect of magnetizing water, seeds and combination of the two was significant on plant density, leaf length, length of main root, number of secondary roots and yield. However, in case of plant length the effect was significant on jew’s mallow but not significant on okra. On the other hand the effect of magnetizing both water and seeds was insignificant with respect to number of leaves per plant for okra and jew’s mallow but significant in case of rocket.
May 2006
128 page
Vegetable,Drip Irrigation System