2024, Vol. 7, Special Issue 12

author(s)
DK Patel, DA Patel, JR Vala and TV Joshi

abstract
A field experiment wasconducted at Agronomy Instructional Farm, Chimanbhai Patel College of Agriculture, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, Gujarat to study the Foliar application of urea and micronutrients onnutrient content and uptake by groundnut in loamy sand soil (Typic Ustipsamments) during summer season of 2019-20.The soil of experimental field was loamy sand in texture with slightly alkaline in reaction, electrical conductivity within safe limit (0.14 dSm^-1). The soil was low in organic carbon (0.23%), available nitrogen (158 kg ha^-1) and DTPA-extractable Zn (0.47 mg kg^-1); medium in available P₂O₅ (37.9 kg ha^-1), K₂O (186 kg ha^-1) and DTPA-extractable Fe (5.19 mg kg^-1). Total eight treatments viz., Control/RDF (T₁), T₁ + 1.5% Urea spray at 35 DAS (T₂), T₁ + 1.5% Urea spray at 50 DAS (T₃), T₁ + 1.5% Urea spray at 35 DAS and 50 DAS (T₄), T₁ + 0.5% FeSO₄ and ZnSO₄ at 35 DAS (T₅), T₁ + 0.5% FeSO₄ and ZnSO₄ at 35 DAS and 50 DAS (T₆), T₁ + 1.5% Urea spray + 0.5% FeSO₄ and ZnSO₄ at 35 DAS (T₇), T₁ + 1.5% Urea spray + 0.5% FeSO₄ and ZnSO₄ at 35 DAS and 50 DAS (T₈) were laid out in randomized block design with four replications. Significantly the highest iron content in kernel was reported with application of RDF + 1.5% Urea spray + 0.5% FeSO₄ and ZnSO₄ at 35 DAS and 50 DAS (T₈); but, it was at par with treatments T₅, T₆ and T₇. Significantly the highest zinc content was recorded with application of RDF + 1.5% Urea spray + 0.5% FeSO₄ and ZnSO₄ at 35 DAS and 50 DAS (T₈). Significantly the highest iron content in haulm was recorded with the application of RDF + 0.5% FeSO₄ and ZnSO₄ at 35 DAS and 50 DAS (T₆); it was at par with treatment T₅, T₇ and T₈. Application of RDF + 0.5% FeSO₄ and ZnSO₄ at 35 DAS and 50 DAS (T₆) was registered significantly the highest zinc content in haulm; but, it was at par with treatment T₈.