EFFECT OF SOIL AND FOLIAR APPLICATION OF MICRONUTRIENTS ON PRODUCTIVITY OF GROUNDNUT IN SANDY SOILS

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dc.contributor.advisorLAKSHMAN, K.
dc.contributor.authorABHIGNA, DOKKA
dc.date.accessioned2022-08-08T11:01:58Z
dc.date.available2022-08-08T11:01:58Z
dc.date.issued2022-08-08
dc.descriptionEFFECT OF SOIL AND FOLIAR APPLICATION OF MICRONUTRIENTS ON PRODUCTIVITY OF GROUNDNUT IN SANDY SOILSen_US
dc.description.abstractA field experiment entitled ―Effect of soil and foliar application of micronutrients on productivity of groundnut in sandy soils‖ was conducted during rabi, 2020 on sandy loam soil of Agricultural College Farm, Bapatla. The experiment was laid out in Randomized Block Design (RBD) and replicated thrice with ten treatments. The treatments consisted of T1 (Control), T2 (RDF + FYM @ 10 t ha-1), T3 (RDF + soil application of ZnSO4 @ 16 kg ha-1 as a basal), T4 (RDF + soil application of FeSO4 @ 10 kg ha-1 as a basal), T5 (RDF + soil application of borax @ 10 kg ha-1 as a basal), T6 (RDF + soil application of ZnSO4 @ 16 kg ha-1 + FeSO4 @ 10 kg ha-1 + borax @ 10 kg ha-1 as a basal), T7 (RDF + foliar application of ZnSO4 @ 0.2% at 30 and 60 DAS), T8 (RDF + foliar application of FeSO4 @ 0.5% at 30 and 60 DAS), T9 (RDF + foliar application of borax @ 0.25% at 30 and 60 DAS) and T10 (RDF + foliar application of ZnSO4 @ 0.2% + FeSO4 @ 0.5% + borax @ 0.25% at 30 and 60 DAS). The results indicated that application of each and combined micronutrients through soil and foliar methods significantly influenced the growth parameters, yield and yield attributes, quality parameters, nutrient content, uptake and available nutrient status in soil after harvest and economics of groundnut crop. The highest plant height, dry matter accumulation, number of branches plant-1, SPAD chlorophyll meter readings, leaf area index, total number of nodules and nodules dry weight were recorded with application of FYM @ 10 t ha-1 along with RDF (T2) and was on a par with soil and combined foliar application of micronutrient treatments (T6, T10, T5, T3 and T4). The higher number of developed pods plant-1 and lower number of undeveloped pods plant-1 recorded with T2 (RDF + FYM @ 10 t ha-1) and was found on par with sole and combined application of micronutrient treatments (T6, T5, T3 and T4) to soil. xv The highest number of pods plant-1, 100 kernel weight, pod and haulm yield were recorded significantly higher with application of RDF + FYM @ 10 t ha-1 and found on par with soil and combined foliar application of micronutrient treatments (T6, T5, T3, T4 and T10). There was no significant effect of micronutrient fertilization on number of kernels pod-1 and harvest index of groundnut. However, the highest shelling percentage and protein content in kernel was recorded with treatment T2 (RDF + FYM @ 10 t ha-1) and was on a par with all the other treatments except with the application of RDF alone (T1). Application of FYM @ 10 t ha-1 along with RDF recorded the highest oil content and oil yield. It remained on a par with soil application of micronutrient treatments (T6, T5, T3 and T4) in case of oil content and with T6 and T5 in case of oil yield. Application of FYM @ 10 t ha-1 along with RDF recorded the highest nutrient content and was found on par with all the treatments except RDF alone (T1) in case of nitrogen and potassium and treatments (T1, T3 and T7) in case of phosphorous content. The treatment T2 (RDF + FYM @ 10 t ha-1) recorded higher total zinc content and was found at par with the treatments (T3, T7, T6 and T10). The total iron content recorded with RDF + FYM @ 10 t ha-1 (T2) was found on par with soil and foliar application of iron treatments (T4, T8, T6 and T10) and in case of boron, T2 (RDF + FYM @ 10 t ha-1) recorded higher total content and was found on par with soil and foliar application of boron treatments (T5, T9, T6 and T10). Application of FYM @ 10 t ha-1 along with RDF recorded highest total nutrient uptake and was found on par with treatments (T6 and T5) in case of nitrogen, potassium and boron uptake; treatment (T6) in case of phosphorous and zinc uptake and treatments (T6 and T4 ) in case of iron uptake. Application of FYM @ 10 t ha-1 along with RDF (T2) recorded the highest available N, P2O5, K2O, Zn, Fe and B status in soil after harvest. It was found on par with the treatments T6, T5, T3, T4 and T10 in case of nitrogen; treatments T6 and T5 in case of phosphorous; treatments T6, T5, T3 and T4 in case of potassium; treatments T3, T6, T7 and T10 in case of zinc; T4, T6, T8 and T10 in case of iron and treatments T5, T6, T9 and T10 in case of available boron nutrient status in soil. Higher agronomic use efficiency and apparent recovery efficiency due to micronutrient fertilization was recorded with the combined foliar application of micronutrients (T10) whereas, higher physiological use efficiency was obtained with the combined soil application of micronutrients (T6). The highest gross returns were realized with T2 (RDF + FYM @ 10 t ha-1), however the higher net returns and benefit cost ratio was realized with combined soil application of micronutrient treatment (T6). From the findings it can be concluded that combined soil application of all micronutrients followed by individual micronutrient application alone found better than foliar application of each micronutrient alone. The highest net returns and benefit cost ratio were obtained with the combined soil application of all micronutrients. However, combined foliar application of all micronutrients proved on par with soil application of micronutrients.en_US
dc.identifier.otherD6218
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810186127
dc.keywordsEFFECT OF SOIL AND FOLIAR APPLICATION OF MICRONUTRIENTS ON PRODUCTIVITY OF GROUNDNUT IN SANDY SOILSen_US
dc.language.isoEnglishen_US
dc.pages203en_US
dc.publishergunturen_US
dc.subAgronomyen_US
dc.themeEFFECT OF SOIL AND FOLIAR APPLICATION OF MICRONUTRIENTS ON PRODUCTIVITY OF GROUNDNUT IN SANDY SOILSen_US
dc.these.typeM.Scen_US
dc.titleEFFECT OF SOIL AND FOLIAR APPLICATION OF MICRONUTRIENTS ON PRODUCTIVITY OF GROUNDNUT IN SANDY SOILSen_US
dc.typeThesisen_US
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