Effect of phosphorus and micronutrients on growth and yield of Rice

Rice (Oryza sativa L.) is one of the most important staple cereal crops in the world and it is one of the main source of carbohydrates for nearly one half of the world population. However, more than 90% of the rice is produced and consumed in Asia, where it is a staple for a majority of the population, including the region¿s 560 million hungry people. India has a long history of rice cultivation and stands first in rice area and second in rice production, after china (Yadav et al., 2010).Phosphorus deficit is a most important restrictive factor in plant growth and recognition of mechanisms that increase plant phosphorus use efficiency is important (Alinajoatisisie & Mirshekari, 2011).Now a day¿s micronutrients deficiency such as zinc and boron is widespread in rice growing areas of country that leads to substantial loss in yield and quality of grains.Zinc is one of the most functional micronutrients in plants, animals and humans and plays an important physiological role in their growth and development (Cakmak, I. (2000).Boron is an essential micronutrient for plant growth and has a key role in plant metabolism.