Agroecosystems are domesticated ecosystems intermediate between natural ecosystems
and fabricated ecosystems, and occupy nearly one-third of the land areas of the earth …

Contaminant Geochemistry: Interactions and Transport in the Subsurface Environment
combines the earth science fields of subsurface hydrology and environmental geochemistry …

A field experiment was initiated in 1968 at Crossfield, Alberta to determine the effects of 27
years of fertilization with ammonium nitrate (0, 56, 112, 168, 224, and 336kgNha− 1yr− 1) to …

The intensification of agriculture in recent decades has resulted in extremely high nitrogen
inputs to ecosystems. One effect has been H+ release through NH4+ oxidation in soils …

Increasing acreage of no‐till (NT) cropping systems with surface applications of N fertilizer
brings forth the important issue of management of acidic soils in these systems. Our …

The effects of repeated yearly fertilizer applications on cassava (Manihot esculenta Crantz.)
yield and plant composition are not well documented in Vietnamese soils. In 1990, a …

Tillage and nitrogen (N) management practices can have profound effects on the variations
in plant nutrients and other soil chemical properties with depth in the soil. Relatively few …

Agricultural expansion into natural habitats causes soil fertility decline after a period of
cultivation. This study investigated changes in soil exchange properties in different farm …

Core Ideas Application of 32% urea ammonium nitrate after harvest has no effect on residue
decomposition. Three months after N addition, 54 to 69% of residue remained with no N rate …

Explore new concepts for maximizing crop yields! Intensive Cropping: Efficient Use of Water,
Nutrients, and Tillage is a compilation of current information on the interdependence of and …