(Photo: Ho Van Chien) For years, the entomologists at Vietnam’s Southern Regional Plant Protection Center in Long Dinh had tried to sell rice farmers...

C4 plants such as maize and sorghum have more efficient photosynthesis than C3 plants. The photosynthesis in C3 plants such as rice is not as efficient...

In the middle of the 19th century, rice was the economic backbone of Japanese society. Hierarchical ranks of feudal lords were determined by the amount...

Food security is back on the global agenda. With the recent food crisis, public attention has returned to issues of availability and affordability, particularly for the urban and rural poor. Responses to the accelerating changes in food stocks and prices in recent months ranged from interventions at the policy level to calls for longer term strategies, including greater...

Rising fertilizer prices and misperceptions about environmental degradation in intensive agriculture have stimulated claims that so-called “low-input” technologies relying on organic nutrient sources may provide a more sustainable means of producing food crops and increasing farmers’ income. However, the sole use of organic technologies would likely perpetuate food...

FARMERS IN INDONESIA mixing fertilizer (potassium chloride and urea) for application to rice at panicle-initiation stage. (Photo: Monina Escalada) The...

Farmers in China applying fertilizer on an aerobic rice field. (Photo: IRRI) As fertilizer prices increase, research and extension often send farmers...

Nitrogen (N) is without doubt the nutrient that most limits rice production. It is typically required in greater quantities than any other nutrient if...

Many farmers of irrigated rice apply excess N during early crop growth, when crop demand for N is small, and then insuffi cient N at later growth stages...