INFLUENCE OF MODE AND SOURCE OF APPLIED IRON ON FENUGREEK (TRIGONELLA CORNICULATA L.) IN A TYPIC USTOCHREPT IN PUNJAB, INDIA

An investigation was carried out to assess the effect of applied Fe on yield and Fe enrichment of fenugreek (Trigonella corniculata L.) grown in an Fe-deficient alkaline field. Both the green and seed yield increased significantly indicating a need to fertilize the crop with Fe in the Fe deficient soils to realize the full yield potential and to improve the Fe content of the crop. Though the crop responded significantly to soil as well as the foliar application of Fe, yet the foliar mode proved significantly superior to soil application as reflected by the magnitude of increase in crop yield and the Fe concentration in plants. When applied to the foliage at equivalent concentration, ferrous sulphate (FeSO4.7H2O) and the micronutrient mixture (consisting of 5% Zn & 7.5% Fe) were at par in increasing the crop yield but ferrous sulphate (FeSO4.7H2O) proved significantly better than the micronutrient mixture in improving the Fe content of the crop plants.

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