Diagnosis and Recommendation Integrated System Assessment of the Nutrients Limiting and Nutritional Status of Tomato

Tomato is an important field crop, and nutritional imbalances frequently reduce its yield. Diagnosis Recommendation Integrated System (DRIS), uses ratios for nutrient deficiency diagnosis instead of absolute concentration in plant tests. In this study, local DRIS norms the tomatoes were established nutrient(s) limiting yield determined. leaves analyzed nutrients, to identify status using approach. One hundred fields selected from Chatter Plain Khyber Pakhtunkhwa Sheikupura Punjab Pakistan. The first fully matured leaf was sampled, rinsed, dried ground analyzing P, K, Ca, Mg, Cu, Fe, Mn Zn Inductively Coupled Plasma Atomic Emission Spectrophotometer (ICP AES). Plant tissue N S measured by combustion method. yields recorded at each location. data divided into high-yielding (≥3.79 kg/10 plant) low-yielding (