Using Di
Using
Diagnosis and Recommendation Integrated System (DRIS) to Determine Nutrient
Norms for Peanut Crop
Abd El-Rheem Kh.
M., Youssef, R. A.
Soils and Water Use Dept.,
National Research Centre, Dokki, Giza, Egypt.
Abstract: The
Diagnosis and Recommendation Integrated System (DRIS) approach evaluates plant
nutritional status and based on a comparison of crop nutrient ratios with
optimum values from a high yielding group (norms). The objective of this study
was establish DRIS norms for peanut crop, to compare mean yield, nutrient
contents of leaves and variance of nutrient ratios of low- and high- yielding
groups. To carry out this research, ninety leaf samples were analyzed for N, P,
K, Fe, Zn and Mn contents and respective yields were recorded of peanut fields
from Ismailia governorate. The data were divided into high- yielding (≥ 12
ton ha-1) and low- yielding (< 12 ton ha-1)
sub-population and the norms were computed using standard DRIS technique. The
DRIS norms for K, Fe and Zn with high S2l/S2h ratio
and low coefficient of variation (CV) found in this paper probably can provide
more security to evaluate the K, Fe and Zn status of peanut.
[Abd El-Rheem Kh. M., Youssef, R.
A. Using Diagnosis and Recommendation Integrated System (DRIS) to
Determine Nutrient Norms for Peanut Crop. Life Sci J 2013;10(1):2922-2925].
(ISSN: 1097-8135).http://www.lifesciencesite.com.
Keywords: DRIS norms, Peanut, Yield, Nutrients content.
