Okra and palak (spinach) were grown as second succeeding crops in sequence with potato-tomato and potato-okra, respectively to study the residual effect of fertilizer doses. Fertllity levels given to second succeeding crops were no fertilizer, 25, 50 and 75% of the recommended dose of N without P and K and recommended dose of NPK. Higher dose of NPK (33% higher than the recommended) applied previously to potato increased fruit yield and NPK content of foliage in okra. However, in palak, improvement in yield and NPK content was recorded only during the second year while zinc applied to potato had no effect on any of these parameters. Appl1cation of the recommended nitrogen without P and K to the second succeeding crops of okra and palak was enough to obtain yield statistically at par with the recommended dose of NPK. Nitrogen content of the foliage increased in both the crops with increase in the dose of nitrogen, however, P and K content of the foliage was net influenced by the N applicatlon.
