Conservation tillage (CT) is practised on 45 million ha world-wide, predominantly in North
and South America but its uptake is also increasing in South Africa, Australia and other semi …

Agricultural intensification has greatly increased the productive capacity of agroecosystems,
but has had unintended environmental consequences including degradation of soil and …

The relationships between N fertilizer rate, yield, and NO3 leaching need to be quantified to
develop soil and crop management practices that are economically and environmentally …

Although no-till (NT) has been promoted as an alternative land management practice to
conventional tillage (CT), its impact on water quality, especially nitrate (NO3−) loss remain …

Managing leaching presents a challenge to nutrient managers who must develop nitrogen
(N) management plans that consider rate and application strategies that account for soil …

Tillage influence on soil properties and crop productivity depends on soil, crop, climate, and
duration. Two long‐term experimental sites with contrasting soils were selected to assess …

No tillage (NT) has been proposed as a practice to reduce the adverse effects of tillage on
contaminant (eg, sediment and nutrient) losses to waterways. Nonetheless, previous reports …

This report reviews and summarizes findings from more than 30 North American studies of
pesticide transport into subsurface agricultural drains. Background information about …

Transport of pesticides from point of application via sub-surface drains can contribute
significantly to contamination of surface waters. Results of 23 field drainage experiments …

Publisher Summary This chapter focuses on the linkage between subsurface tile drainage of
agricultural lands and nitrate in surface waters, and the effect of uncontrollable factors and …