Abstract
The DRIS approach utilizes nutrient interrelationships to determine nutrients that are most limiting to a specific goal e.g. yield. In present study, nutrient ratios of the high yielding treatment of an experiment were used as norms to which others were compared in explaining deviations. The foliar analysis comprised of nitrogen (N), phosphorus (P), potassium (K) and zinc (Zn) for wheat and P, K, Zn and sulphur (S) for maize and P, K, and chloride (Cl) for rice. The system explained the progressive diagnosis of the limiting nutrients i.e. P and Zn and their correction by encouraging availability through application of sulphuric acid in maize experiment, while analysis of variance (ANOVA) did not specify it. In wheat experiment, induction of P and K limitation by application of Zn at elevated rate was identified by DRIS. It also elucidated the role ofCl to improve P and K supply in rice plant. In all three independent sets of data, DRIS aids ANOVA to furnish the findings in clarity
M. Akrant,, K.H. Gill, , S.M. Mian,, Z. Ahmad , D. Yousaf . (1996) PROSPECTS OF DIAGNOSIS AND RECOMMENDATION INTEGRATED SYSTEM (DRIS) AS AN AID TO CONCEIVE STATISTICAL DECISIONS USING FOLIAR ANALYSIS, The Journal Soil & Environment , Volume 12, Issue (3-4).
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