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Birsa Agricultural University, Ranchi

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Author: Kumar, Sanjay × End date: 2021 × Start date: 2021 × Type: Thesis ×
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    ThesisItemOpen Access
    EFFECT OF NITROGEN AND PLANT GROWTH RETARDANT ON PRODUCTIVITY OF WHEAT (Triticum aestivum L.)
    (Birsa Agricultural University, Ranchi, 2021) Kumar, Sanjay; Ali, Naiyar.
    Wheat (Triticum aestivum) is one of the most important staple food crops of India and occupies a notable position among the food grain crops not only in area and production but also in its versatility in adaptation to a wide range of agro-climatic conditions. India is second largest wheat growing country in the world after china. Globally, it is the leading source of vegetal protein in human food, having a protein content of about 13%, which is relatively high compared to other major cereals, but relatively low in protein quality for supplying essential amino acids. When eaten as the whole grain, wheat is a source of multiple nutrients and dietary fibre. A field experiment entitled “Effect of nitrogen and plant growth retardant on productivity of wheat (Triticum aestivum L.)” was conducted the Birsa Agricultural University Farm, Kanke, Ranchi during the Rabi season of 2019-20 with the main emphasis to study the effect of nitrogen and plant growth retardant on growth, yield attributes, nutrient uptake by wheat and economics of wheat. The experiment was laid out in a Randomized Block Design (RBD) with ten treatments replicated thrice with the variety, DBW187 (Karan Vandana). The treatment were - No fertilizer and PGR (Control), 50 % RDN + PK, 75 % RDN + PK, 100 % RDN + PK + Plant growth retardant (PGR) (Lihocin @ 0.2% + Folicur 430 @ 0.1%), 125 % RDN + PK, 150 % RDN + PK, 125 % RDN + PGR (Lihocin @ 0.2% + Folicur 430 @ 0.1%)(T7), 150 % RDN + PGR (Lihocin @ 0.2% + Folicur 430 @ 0.1%), 150 % RDF + PGR (Lihocin @ 0.2% + Folicur 430 @ 0.1%), 150 % RDF. Recommended dose of Fertilizer (RDF): 150:60:40 (NPK/ha), applied 1/3rd nitrogen, full phosphorus and potash as basal dose as per treatments and the remaining 2/3rd nitrogen as 1/3rd at first irrigation and 1/3rd at second irrigation. Soil was clay loam in texture and PH was 6.2, having low organic carbon (0.42) with medium in soil fertility. Results found that the application 150 % RDF + Chlormequat chloride (Lihocin @ 0.2 % + Tebuconazole (Folicur 430 SC) @ 0.1 % gave significantly higher grain yield (57.60q/ha) as compared to rest of the treatment under investigation. Application of 150 % RDF + Chlormequat chloride (Lihocin @ 0.2 % + Tebuconazole ( Folicur 430 SC) @ 0.1 % also gave significantly higher yield attributes, NPK uptake, protein content and net return as compared to no fertilizer no PGR , 50 % RDN + PK, 75 % RDN + PK and 100 % RDN + PK + Plant growth retardant (PGR) (Lihocin @ 0.2% + Folicur 430 @ 0.1%)125 % RDN + PGR (Lihocin @ 0.2% + Folicur 430 @ 0.1%), 150 % RDN + PGR (Lihocin @ 0.2% + Folicur 430 @ 0.1%) but at par the rest of the treatment. However higher B:C ratio was obtained due to 150 % RDN + PK which was at par 125% RDN + PK but significantly higher than rest of the treatment.