Effect of methods and frequency of boron application on maize productivity and its use efficiency in an acid Alfisol

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dc.contributor.advisorKumar, Pardeep
dc.contributor.authorThakur, Pratibha
dc.date.accessioned2022-02-26T06:07:41Z
dc.date.available2022-02-26T06:07:41Z
dc.date.issued2021-08-13
dc.description.abstractA field investigation was carried out during Kharif 2020 on maize (Zea mays L.) at the Nutrient Management Section of Department of Soil Science, COA, CSK HPKV, Palampur. The experiment comprised of fourteen treatments replicated thrice in a randomized block design (RBD) in order to figure out the efficacy of two methods of boron application (soil or foliar), foliar applications at three rates (0.017, 0.034 and 0.051%) and variable frequencies (two and three sprays). All these combinations received recommended dose of fertilizers. Basal application of boron @ 2 kg ha-1 through borax and three rates of foliar application i.e. half of recommended (0.017 %), recommended (0.034 %) and 1.5 times of recommended dose (0.051 %) with boric acid were tested. The foliar feeding of boron was done at knee height, tasseling and grain filling stages. The growth parameters, yield attributes and yield, nutrient uptake, boron use efficiency and soil properties were significantly affected by different boron treatments. The maximum grain yield (46.1 q ha-1 ) was recorded in the treatment where boron was supplied through conjoint soil and foliar application @ 2 kg ha-1 and 0.051 per cent (three foliar sprays), respectively which was 29.0 per cent higher than the boron deprived treatment. The highest boron use efficiency was recorded in the treatment that received sole foliar application of boron at recommended rate with two foliar sprays. The boron and micronutrient cations uptake by grains and stover were also enhanced when boron was applied and maximum uptake was recorded with conjoint soil and foliar application @ 2 kg ha-1 and 0.051 per cent, respectively, with three foliar feedings. Boron treatments had non significant effect on soil pH and organic carbon content, however, a significant effect was recorded in available N, P, K and B after harvest. Highest net returns of ₹ 53,448 ha-1 and benefit cost ratio (2.19) were registered when basal application of boron @ 2 kg ha-1 was supplemented with its three foliar feedings @ 0.051 per cent. The study highlight the importance of boron application in enhancing the maize productivity in acid soils.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810182902
dc.keywordstreatments,soil,conjoint,feedings.en_US
dc.language.isoEnglishen_US
dc.pages110en_US
dc.publisherPalampuren_US
dc.subVegetable Scienceen_US
dc.themeTo study the effect of boron application on maize productivity, its use efficiency and soil properties and to work out the economics of different treatments.en_US
dc.these.typeM.Scen_US
dc.titleEffect of methods and frequency of boron application on maize productivity and its use efficiency in an acid Alfisolen_US
dc.typeThesisen_US
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