Vol. 6, Issue 3 (2018)
Validation of LCC and SPAD meter for nitrogen management in wheat and their effect on yield, nutrients uptake and post-harvest soil fertility
Author(s): BB Barad, RK Mathukia, HN Der and KH Bodar
Abstract: A field experiment was conducted at Instructional Farm, College of Agriculture, JunagadhAgricultural 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 thresholds (4.0) andSPAD values (30, 35 and 40) compared with fix time nitrogen application (120 kg/ha) were imposed through RBD replicating thrice. The results revealed that application of 40 kg N/ha as basal + top dressing of 80 kg N/ha in two equal splits at LCC 4 or SPAD 40 significantly increased yield, improved nutrient uptake by crop and sustainedpost-harvest soil fertility over fixed time application of 60 kg N/ha as basal + 60 kg N/ha at 25 DAS.The results of the study implied that 40 kg N/ha as basal + top dressing of 80 kg N/ha when LCC threshold 4.0 or SPAD value 40 are found to be effectiveas a decision tool for optimizing N application in wheat.
Pages: 1456-1459 | 545 Views 104 Downloads
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How to cite this article:
BB Barad, RK Mathukia, HN Der, KH Bodar. Validation of LCC and SPAD meter for nitrogen management in wheat and their effect on yield, nutrients uptake and post-harvest soil fertility. Int J Chem Stud 2018;6(3):1456-1459.
