Author(s):

MM Barvaliya, AP Italiya, DP Patel, TU Patel and HB Patel

Abstract: An investigation entitled “Effect of FYM, Zn and Trichoderma spp. applications on growth, yield and cadmium uptake by spinach beet grown in Cd contaminated soil” was carried out during Rabi 2016 at Department of Natural Resources Management, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, Navsari. The present pot trial consisting of 18 treatment combinations involving three levels of FYM (F₀: control, F₁: 10 t ha^-1 and F₂: 20 t ha^-1), two levels of Trichoderma (T₀:- Control, T₁:- 2 kg ha^-1) and three levels of Zinc (Z₀: control, Z₁: 2.5 mg kg^-1 and Z₂: 5.0 mg kg^-1) using Factorial Complete Randomize Design with three repetitions. The experimental results revealed that plant height, number of leaves, leaf area, fresh weight of leaves during 1^st, 2^nd and 3^rd cuttings and dry weight of root after 3^rd cutting were significantly highest with treatment F₂ over F₁ and F₀ with a tune value of 20.14, 22.01 and 18.33 cm; 5.68, 6.04 and 7.33; 205.58, 201.52 and 230.71 cm²; 122.79, 133.86 and 106.13 g pot^-1; 9.82 g pot^-1respectively. Similar trends in results with respect to growth and yield were found with application of Zn @ 5 mg kg^-1(Z₂) over Z₁ and Z₀. However, fresh weight of leaves was found significantly highest with application of Trichoderma spp. @ 2 kg ha^-1 over T₀. Application of FYM @ 20 t ha^-1 were found to be significant in SOC, Available N, P₂O₅, K₂O, DTPA extractable Fe, Cu and Zn. In case of available K₂O, F₂ was at par with F₁ (590.32 kg ha^-1)_. The SOC, DTPA extractable Cu and Zn were significantly affected due to application of Trichoderma @ 2 kg ha^-1(T₁) over no application (T₀). However, SOC, available N, P₂O₅, K₂O, Fe, Cu and Zn were significantly higher in Z₂ treatment as compared to Z₁ and Z₀ treatment with a tune value of 0.73 per cent, 150.95 kg ha^-1, 68.28 kg ha^-1, 609.41 kg ha^-1, 12.50 ppm, 2.53 ppm and 1.59 ppm, respectively. Further, Z₂ was at par for available N and Fe with Z₁ with corresponding value of 146.72 kg ha^-1 and 12.08 ppm. The Cd was significantly lower with treatment F_2, T₁ and Z₂ over the F₁ and F_0, T₀ and Z₁ and Z_0, respectively. The data further showed that treatment T₀ and Z₀ recorded significantly highest Cd content in soil and remain at par with T₁ (3.38 ppm) and Z₁ (3.48 ppm), respectively after harvest the spinach beet. The result revealed that the maximum fungal and bacterial count recorded in treatment F₂T₁Z₀ with a tune value of 16 x 10⁴ and 32 x 10⁴cfu, respectively.

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