Nitrogen Management for Wheat and its Residual Effect on Maize...
abdul bari, Dr. Ayub Khan, Prof. Dr. Paigham Shah
The greatest challenge facing mankind in the 21st century is to produce the basic necessities of food, feed, fibre, fuel and raw materials for some of the industrial goods and the situation is further deteriorated due to the mushrooming growth in population. Supporting the increasing population levels through production of basic necessities from finite and nearly stabilized agricultural land places a heavy burden on the soil resources - particularly its nutrient supplying power. Pakistan is one of the several countries where the stress on the soil is increasing. One yardstick of the nutrient stress on soil is the quantum of nutrients removed annually by harvested crop in relation to native soil fertility and what is added to the soil in...
ISBN: 978-3-6393-1167-9
Издательство:
Книга по требованию
Дата выхода: июль 2011