Evaluation use leaf color chart in rice for nitrogen management
Journal Title: Scientia Agriculturae - Year 2013, Vol 3, Issue 3
Abstract
Nitrogen is the major nutrient limiting the high yield potential of rice cultivars, Farmers generally apply fertilizer nitrogen in several split applications, that results in high pest and disease incidence and serious lodging. Precise application of nitrogen fertilizer based on plant need and location in the field greatly improves fertiliser use efficiency in rice. One of the recently introduced nitrogen management approach was estimating the leaf nitrogen concentration by the measurement of leaf greenness. The leaf color chart (lcc) is an easy-to-use and inexpensive diagnostic tool for monitoring the relative greenness of a rice leaf as an indicator of the plant N status . Inexpensive leaf color chart(lcc) have proved quick and reliable tools to decide the time when fertilizer n needs to be applied to the crop. the use of the lcc ,farmers can apply N at the right time,thereby increasing the productivity and profitability of direct rice and reduction of used nitrogen fertilizer.
Authors and Affiliations
S Yosef Tabar
Keywords
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