in 1983. This bulletin includes statistics for 1970-91 on U.s. imports and exports of selected fertilizer materials … selected fertilizer materials. …

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 …

reduced fertilizer or pesticide use. Computable general equilibrium (CGE) models are potentially valuable tools to analyze the …, including pesticide and fertilizer. A nested production structure is assumed. The nesting structure employed allows the effects … further toward reducing its use (-17.46 percent) than does a lO-percent charge on fertilizer use (-1.0 percent). However, most …

Farm output in 1979 rose 6 percent from 1978's record level. Crop and livestock production both set records. Cropland … used for crops increased 10 million acres to the biggest acreage since 1954. Crop production per acre, a record, rose 7 … percent, spurred by favorable weather, higher prices received, and increased fertilizer use. Tractor and farm machinery …

The rapid growth in fertilizer consumption throughout the sixties and seventies peaked at 23.7 million nutrient tons in … application. Farm fertilizer prices, while stable or declining during the sixties, have varied widely since 1973. This bulletin … includes quarterly or semiannual time series for farm fertilizer prices, annual, farm and wholesale fertilizer price indexes …

fertilizer recommendations. This article illustrates how greater use of site-specific crop response information can improve …Many mechanized crop producers and agribusinesses are fascinated with precision agriculture technology, but adoption … initial users focused excessively on in-field benefits from variable-rate fertilizer application using regional average …