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A field experiment was carried out at Rahuri (Maharashtra) India in consecutive years of 2011 to 2012 to study the response of split and foliar application of nitrogen on leaf nitrogen concentration, SPAD index and photosynthesis in Bt cotton (Gossypium hirsutum L). Ten treatments comprising nitrogen-management practices (application of recommended dose of nitrogen in 3, 4, 5, 6 splits; foliar application of 20 g KNO 3 litre -1 water, 20 g urea litre -1 water, combination of split application of nitrogen and foliar spray of 20 g KNO 3 litre -1 water, 20 g urea litre -1 water and control) were tested on inceptisol. Results indicated that application of nitrogen in six splits (20% at sowing as basal and remaining in 5 equal splits at 30, 45, 60, 75 and 90 DAS) registered significantly higher leaf nitrogen content, SPAD index and rate of photosynthesis except 60 DAS where 4 nitrogen split showed higher leaf nitrogen content and SPAD index. Similarly the same treatment registered significantly higher plant height, dry matter accumulation, number of bolls plant -1 and lint yield.

with a view to find out the soil properties of sorghum [Sorghum bicolor (L.) Moench]-wheat (Triticum aestivum L.) crop sequence as affected by long term integrated nutrient management. The long term impact of integrated nutrient management on soil properties were studied after 32 nd cycle (2015-16). The treatment comprised different levels of recommended dose of fertilizers (RDF) viz., 50, 75, 100% RDF in combination with and without farm yardmanure, wheat straw and green manure. The results indicated that, among the chemical properties soil pH and the electrical conductivity was recorded non-significant. The highest organic carbon percentage was observedin treatment receiving chemical fertilizers along with FYM. It was significantly improved (0.71, 0.69%) with the application of 50% NPK + 50% N through FYM (T 6) and lowest value (0.44, 0.41%) was observed in absolute control.The influence on soil properties ultimately reflected in higher yield of sorghum and wheat in the same treatment. It is also observed that the soil propertieswere significantly correlated with yield. Hence, it can be concluded that the use of 50% NPK + 50% N through FYM is imperative for sustainable productivity and maintenance of soil fertility.