Nitrogen management in popcorn

Nitrogen is the most common limiting nutrient for crop production and therefore, adoption of good nitrogen management strategies often results in large economic benefit to the farmers. Nitrogen is the key element in achieving consistently high yields in cereals. Many researchers have reported that increasing levels of N fertilizer increase grain yield. However, no single source of nutrients is capable of supplying nutrients in adequate and balanced proportion. It is well established that improvement in productivity, soil fertility status, and economic returns could be made possible with the combined application of organic and inorganic fertilizers. A very large number of evidence confirm that a judicious combination of organic and inorganic fertilizers brings about favorable as well as desirable results in terms of yield, quality of crop produces and soil fertility. A positive interaction has been shown to exist between the combination of organic manures and urea as N source.