Agricultural College and Research Institute, Madurai
A study was undertaken to compare the efficacy of organic and inorganic sources of nitrogen on the growth and yield of brinjal Cv. MDU. I. The results have indicated that substrate application of half N(50 kg) as poultry manure and half N (50 kg) as urea increased the dry matter and uptake of N, P, K, Ca and Mg. There was also higher plant height. The plants supplied with inorganic form of N showed early flowering when compared to organic sources or their combination. The highest yield of 51.03 t/ha of fruits was recorded by the plants supplied with 50 kg N as poultry manure and 50 kg N as urea followed by plants supplied with 50 kg N as pig manure and 50 kg as urea (45.80 t/ha).
