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Wheat is very important crop of Pakistan, as it is the staple food and largest grain source of the country. Its contribution is 13.1 percent to the value added in agriculture and 2.7 percent to GDP. Pakistan is among the top wheat producing countries of the world. However there is a big gap between actual and potential yield of wheat in Pakistan. Yield limiting factors include water shortage, low use of nutrients due to high prices of fertilizers, conventional cultural practices and low nutrient use efficiency. Phosphorus use efficiency is very low throughout the world, P deficiency is a...

Adoption of every new technology always involves advantages and risks; Bt cotton is new technology; which in developed countries is well known for many advantages like reduced application of pesticides, better insect pest control and higher lint yield but its success in developing countries still carries a question mark. Global adoption of Bt cotton has risen dramatically from 0.76 million hectares in its introductory period in 1996 to 7.85 million hectares in 2005. This book aims that adoption of Bt cotton may prove to be green revolution in enhancing the cotton yield. Although adoption of...