Precision nitrogen management and impact of plant growth regulators on wheat (Triticum aestivum L.) crop
| dc.contributor.advisor | Kesarwani, Amit | |
| dc.contributor.author | Kapri, Manisha | |
| dc.date.accessioned | 2021-02-01T09:35:54Z | |
| dc.date.available | 2021-02-01T09:35:54Z | |
| dc.date.issued | 2020-12 | |
| dc.description.abstract | A field experiment was conducted during rabi season of 2019-20 at N. E. Borlaug Crop Research Centre of Govind Ballabh Pant University of Agriculture and Technology, Pantnagar to know the effect of dfferent nitrogen management techniques and growth regulators on growth and yield parameters of wheat. The soil of the experimental site was silty clay loam with neutral soil reaction (pH 7.4), medium organic carbon (0.73%), low available nitrogen (217.16 Kg/ha), medium available phosphorus (21.4 Kg/ha) and potassium (139.1 kg/ha). The experiment was laid out in randomized block design with 13 treatments and 3 replications. Total 13 nutrient management approaches were under trial where 6 treatments having different nitrogen doses ranged from 50% to 150% recommendation, while 3 treatments nitrogen combinations along with use of growth regulators (Lihocin and folicur) and remaining 3 treatments related to precision nitrogen management viz. Leaf color chart, green seeker and Nutrient Expert. Observations on morphological and yield parameters were taken and economics, nutrient uptake and use efficiency was worked out. Growth and yield parameters, economic parameters, nutrient uptake and nutrient use efficiency were significantly affected by different doses of nitrogen and growth regulator applications. With increase in dose of nitrogen all the growth and yield parameters significantly increased. Use of growth regulators resulted in reduced height and enhanced tillering. Stem characteristics viz. length, wall thickness and filling degree were also improved with the use of growth regulators. Maximum test weight was obtained from Nutrient Expert based treatment. Highest grain yield was recorded with 150% RDF+ GR which was at par with 100% RDF and Nutrient Expert while, highest straw and biological yield was obtained from 100% RDF. The net return obtained from 100% RDF was ` 5690 and ` 2754 more than 150% RDF+GR and Nutrient Expert respectively. From this experimental finding, it can be inferred that only application of nitrogenous fertilizer should not be recommended in wheat crop to avoid imbalance of soil nutrients pool and for any toxicity abruptions in the food cycle. The phosphorus and potassium are also important along with N application to get higher yield and retain proper soil nutrition sustainability. Overall, the dose of 100% RDF (150:60:40 kg N-P2O5-K2O) as per North Western Plain Zone had given best results in terms of grain yield, net return and B:C ratio. Among precision nitrogen management techniques, Nutrient Expert had shown potential to get more yields in wheat crop and gave statistically at par results in terms of grain yield and other few yield parameters with 100% RDF while comparing Leaf Color Chart or Green Seeker basis treatment. | en_US |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810160788 | |
| dc.keywords | precision farming, nitrogen, plant growth regulators, wheat | en_US |
| dc.language.iso | English | en_US |
| dc.pages | 113 | en_US |
| dc.publisher | G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand) | en_US |
| dc.research.problem | Wheat | en_US |
| dc.sub | Agronomy | en_US |
| dc.theme | Cropping Systems | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | Precision nitrogen management and impact of plant growth regulators on wheat (Triticum aestivum L.) crop | en_US |
| dc.type | Thesis | en_US |