objective of this study is to employ a Just-Pope production function to examine the relationship between fertilizer inputs, soil … fertilizer, temporal diversity, and PBR wheat cultivars are associated with increased yield variance. Mean wheat yield is reduced … contrast, higher soil quality and PBR wheat cultivars increase mean yield. The wheat yield increases attributed to PBR range …

decreased 9 million acres or 2 percent below 1977, and crop production per acre of cropland used for crops was a record high in … 1978 - 3 percent above the previous record set in 1977. Fertilizer use in 1978 decreased 7 percent or 20.6 million tons of …

Despite upward trends in fertilizer application rates on maize fields over the last twenty years, there remains a … perception in Kenya that fertilizer use is not expanding quickly enough and that application rates are not high enough to reverse …-million dollar fertilizer and improved seed subsidy and training program, the National Accelerated Agricultural Inputs Access Program …

The IFAMR is published quarterly by the International Food and Agribusiness Management Association. www.ifama.org …

The IFAMR is published quarterly by the International Food and Agribusiness Management Association. More info: www.ifama.org …