India occupies prime position in seed spices and plays very important role in earning foreign exchange through export of seed spices. India is the world's largest producer, consumer and exporter of the spices. Fennel (Foeniculum vulgare Mill.) is an important seed spice. Gujarat ranks first with respect to production and productivity in India. Area under rabi direct seeded fennel is increasing day by day, because it is more profitable than other rabi crops like wheat, gram, cumin, mustard etc. Lake of production technologies and weed control particularly for rabi drilled fennel are important...

Wheat is the second most important staple food after rice consumed by 65% of the population in India. Fertilizer plays a leading role in increasing crop production by almost 41%. Among the primary nutrients, nitrogen plays an important role in plant metabolism by virtue of being an essential constituent of structural component of the cell and many diverse type of metabolically active compounds. It is also a constituent of chlorophyll, which is important for the harvest of solar energy. Nitrogen is liable to lost through leaching, volatilization and run off during crop period. Further, crop...