||Plant nutrition for food security - A guide for integrated nutrient management
||Of the essential material needs of humankind, the basic requirement is for an
adequate supply of air, water and food. People have free access to the air they
breathe. However, access to drinking-water and food, while easily obtained
for some, is difficult for many. In addition to being physically available, these
materials should also be of acceptable quality and continuously so.
Hunger and diseases have affected humankind since the dawn of history.
Throughout time, there have been periods of famine leading to suffering and
starvation, making the fight against hunger and the diseases caused by malnutrition
a permanent challenge. For many centuries until about 1800, the average grain yield
was about 800 kg/ha, providing food only for a few people. The main problems
were the low fertility of most soils (mainly caused by the depletion of nutrients)
and the great yield losses from crop diseases and pests.
Training/Learning Support Material;
Plant growth substances;
Plant soil relations;
||Sustainable intensification of crop production