In 1943, the Rockefeller Foundation (RF) and Mexican government collaborated in the creation of the Mexican Agricultural Program (MAP) to boost the production of hybrid corn and wheat in Mexico. The Mexican government supported the creation of the MAP because it desired higher a…
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Plant nutrients. The soil as a plant nutrient medium. Nutrient uptake and assimilation. Plant water relationships. Nutrition and plant Growth. Ferilizer aplication. Nitrogen, sulphur, phosphorus, potassium, calcium, magnesium, iron, manganese, zinc, copper, molybdenum, boron. Fu…
Soil Fertility Evaluation and Control presents the theoretical background for practical applications of scientific work on soil fertility. The book emphasizes the use of response curves as the basic biological standard for both evaluation and control, and it discusses soil testi…
For the past three decades, African agricultural crop production has been increasing. However, much of exhibited growth has come from additional harvested land rather than the increased yield per hectare. This paper studies crop production of the world, African in general, East …
The assessment of optimum nitrogen (N) fertilizer need for winter wheat (Triticum aestivum L.) is important for economic and environmental sustainability. A comprehensive understanding of fertilizer N requirement depends on estimation of the quantity of N needed by the crop vers…
Although the main limitation of crop production in the arid and semiarid regions of Morocco is lack of sufficient rainfall, phosphorus (P) nutrient deficiencies also are major obstacle to maximum crop production. Fertilizer management is an important step in sustainability of cr…
A hydrogeological study, during the period from June, 1991 to June, 1992, in the clay-soil mantled portion of a limestone terrain in southern Indiana showed a major movement of nitrate in quick pulses through the unsaturated zone immediately after a major storm event on April 15…
Paddy-soils in Java, Indonesia, have been intensively fertilized with phosphate for at least three decades through centralized government programs, which provide subsidized intensification packets to farmers. One side effect of these programs has been an excessive accumulation o…
Much of agricultural research concerns the relationship between the agroecological environment and the application of purchased inputs. In highly variable environments, economic models of intra-seasonal input decisions should incorporate the stochastic nature of biological respo…
Soil and Fertilizers: Managing the Environmental Footprint presents strategies to improve soil health by reducing the rate of fertilizer input while maintaining high agronomic yields. It is estimated that fertilizer use supported nearly half of global births in 2008. In a contex…
