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A. G. Durgude ¹, C. R. Palwe ¹, D. D. Sawale ¹, S. R. Kadam ¹

Affiliations
1 Department of Soil Science and Agricultural Chemistry, Mahatma Phule Krishi Vidyapeeth, Rahuri, Ahmednagar M.S., IN

Abstract

An investigation was carried out on Typic Ustorthent (Entisol) to study the effect of soil and foliar application of iron on nutrient uptake and iron availability in soil and yield of bulb onion (cv. Basawant 780). The highest total uptake of total nitrogen (128.13 kg ha-1) and iron (4.45 kg ha-1) by onion was found in treatment of soil application of RDF + FYM + FeSO4 @ 20 kg ha-1 followed by treatment of RDF + FYM + FeSO4 @ 20 kg ha-1 + 0.5 % FeSO4 at 30 and 45 days after transplanting. The iron availability in soil 20.12 and 21.43 mg kg-1 was also increased in soil after harvest of onion in aforesaid two treatments, respectively. The same trend of increased in microbial count in soil after harvest of onion was recorded in above mentioned two treatments. The highest onion bulb yield (28.11 Mg ha-1) was obtained under the treatment soil application of RDF + FYM + FeSO4 @ 20 kg ha-1 on entisol.

Keywords

Ferrous Sulphate, Uptake, Microbial Count, Residual Fe in Soil, Onion Bulb Yield, Entisol

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A. G. Durgude ¹, S. R. Kadam ¹, A. L. Pharande ¹

Affiliations
1 Department of Soil Science and Agricultural Chemistry, Mahatma Phule Krishi Vidyapeeth, Rahuri, Ahmednagar (M.S.), IN

Abstract

An investigation was carried out for three years (2010 to 2012) on Typic Ustorthent to study the response of hybrid maize to different soil and foliar application of iron and zinc on Entisol. The treatments comprised of foliar and soil application of iron and zinc sources of EDTA and sulphate form at two critical growth stages of maize crop. The availability of DTPA-Fe and Zn was increased in soil after harvest of crop due to soil application of respective source of Fe and Zn, however, it was not increased in foliar application. The total uptake of Fe and Mn was significantly higher in treatment T₁₂ (GRDF + soil application of FeSO₄ + ZnSO₄ @ 5 kg ha^-1 each at two stages i.e. 7536 and 1222 g ha^-1 Fe and Mn, respectively. The total uptake of Zn was also significantly higher in treatment T₁₂ (852 g ha^-1) followed by T₁₁ (836 g ha^-1) and T₁₀ (821 g ha^-1). The highest maize grain yield (79.4 q ha^-1) was significantly increased in the treatment of T₁₂ followed by T₁₁ treatment, where Fe and Zn sources were added in soil as a sulphate and chelated form, respectively.

Keywords

Soil and Foliar Application of Fe, Zn, Macro and Micronutrient Uptake, Yield of Maize, Entisol.

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A. G. Durgude ¹, S. R. Kadam ¹, A. L. Pharande ¹

Affiliations
1 Department of Soil Science and Agricultural Chemistry, Mahatma Phule Krishi Vidyapeeth, Rahuri, Ahmednagar (M.S.), IN

Abstract

The present investigation was undertaken for three year (2010-2012) at Micronutrient Research Farm, Mahatma Phule Krishi Vidyapeeth, Rahuri to study the effect of soil and foliar application of FeSO₄ and ZnSO₄ on yield of Bt Cotton. The experiment was laid out in Randomized Block Design with eight treatment combinations and three replications. The treatments were different soil and foliar application of FeSO₄ and ZnSO₄ at different stages. The three years pooled data revealed that, the DTPA-Fe and Zn in soil was significantly increased (6.60 and 0.77 ppm, respectively) in treatment of T₅ (RD as per STCR equation + soil application of FeSO₄ @ 25 + ZnSO₄ @ 20 kg ha^-1). The concentration of Fe and Zn in cotton leaves significantly higher in T₅ treatment at flowering and boll development stage and per cent plant affected with reddening was noticed low in T₅ treatment. The cotton yield was significantly increased in treatment of T₅ (40.96 q ha^-1) and highest gross and net monetary returns were also recorded in treatment of T₅ (Rs. 166297/- and Rs. 96037/-, respectively). The B:C ratio was also highest in treatment of T₅ (2.37).

Keywords

Soil and Foliar Application of Fe and Zn, DTPA-Fe and Zn in Soil, Uptake, Yield of Bt Cotton.

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