International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 2
First page : (434) Last page : (440)
Article doi: : http://dx.doi.org/10.18782/2320-7051.6352
Real Time Nitrogen Fertilization Using Precision Tools for Enhancing Productivity of Wheat (Triticum aestivum L.)
B. B. Barad*, R. K. Mathukia, K. H. Bodar and H. N. Der
Department of Agronomy, College of Agriculture, Junagadh Agricultural University,
Junagadh-362001, Gujarat, India
*Corresponding Author E-mail: baradbhavna123@gmail.com
Received: 20.03.2018 | Revised: 18.04.2018 | Accepted: 24.04.2018
ABSTRACT
A field experiment was conducted at Instructional Farm, College of Agriculture, Junagadh Agricultural University, Junagadh, Gujarat during rabi 2015-16 and 2016-17 to study the real time nitrogen fertilization using leaf colour chart (LCC) and chlorophyll meter (SPAD meter) in wheat (Triticum aestivum L.). Treatments consists of N application based on LCC threshold (4.0) and SPAD values (30, 35 and 40) compared with fix time nitrogen application (120 kg ha-1), were imposed through RBD replicating thrice. The results revealed that top dressing of 80 kg N ha-1 in two equal splits at LCC 4 or SPAD 40 significantly improved growth and yield attributes viz., plant height, number of effective tillers per m row length, spike length and test weight along with higher grain and straw yields, grain protein content and economic returns over fixed time application of 60 kg N ha-1 each at sowing and 25 DAS. The results of the study implied that top dressing 80 kg N ha-1 in two equal splits when LCC threshold 4.0 or SPAD 40 are found to be effective as a decision tool for optimum N application in wheat.
Key words: Wheat, Triticum aestivum, Nitrogen, Chlorophyll meter, SPAD meter, Leaf Colour Chart, LCC.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Barad, B.B., Mathukia, R.K., Bodar, K.H. and Der, H.N., Real Time Nitrogen Fertilization Using Precision Tools for Enhancing Productivity of Wheat (Triticum aestivum L.), Int. J. Pure App. Biosci.6(2): 434-440 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6352
