Irrigation with madhuana drain water: Impacts on soils and vegetables (spinach and cauliflower) at Faisalabad [Pakistan]
1995
Ghafoor, A. | Rauf, A. | Muzaffar, W. (University of Agriculture, Faisalabad (Pakistan) Dept. of Soil Science)
Sewage water in the immediate surroundings of big cities is commonly applied to grow vegetables in Pakistan. The results of a preliminary field study indicated that there was considerable chemical variation in the effluent from different factories. The accumulation of N, P, K, Na, Ca, Mg, Cl, Fe, Mn and Zn was higher in soils receiving sewage water than those irrigated with canal water. The concentration of these chemical species was reasonably higher in the upper 30 cm soil layer than the lower depths in spite of the fact that soils were well drained sandy loam in texture up to 120 cm depth. There was a considerable variation in concentration of elements in plants of cauliflower (Brassica oleracea botrytis) and spinach (Spinacia oleracea) from closely spaced fields which necessitates further investigations.
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Эту запись предоставил National Agricultural Research Centre