No till farming high N2O greenhouse gas

Global warming is induced by several factors, notably by the emission of greenhouse gases such as carbon dioxide (CO2) and nitrous oxide (N2O) by some agricultural practices. Agronomists Vermue et al. measured the nitrous oxide emissions of various weed management options. They found the highest emissions, of 5226 g per hectare, in the no tillage system, versus 177 g for intensive tillage. Most N2O emissions occurred in spring.