Soil loss from dryland farms on the Columbia Plateau in Oregon and Washington (USA) results primarily from rain falling on frozen, cultivated soil. Soils are most susceptible to erosion when moldboard plowed, summer-fallowed, repeatedly rodweeded or cultivated, and fall planted to winter-wheat. These tillage practices are used because they help control weed and disease infestations and consiste...

Unweathered crop residues can produce growth-inhibiting substances, stimulate pathogen growth, and immobilize nutrients. The location of seed relative to residue may be an important factor in the early health of a crop. This greenhouse study simulated sowing conditions possible under annual dryland winter wheat (Triticum aestivum L.) production to evaluate the likelihood of inhibitory effects. ...

Abstract Environmental alarms like climate change and rising air pollution levels in north India, particularly the Delhi National Capital Region (NCR), draw attention to severe issue of Rice straw burning. Straw burning is common practice Punjab Haryana’s Indo-Gangetic plains. Large-scale residues (straw stubble) a problem that emits Green House Gases (GHGs) while polluting air, posing health p...

Most large scale studies assessing climate change impacts on crops are performed with simulations of single and annual re-initialization the initial soil conditions. This is in contrast to reality that grown rotations, often sizable proportion preceding crop residue be left fields varying conditions from year year. In this study, sensitivity yield organic carbon assumptions about model re-initi...

Although it is widely acknowledged that rising atmospheric CO2 concentrations will increase crop root growth, no study has considered how this response could be influenced by agricultural management practices. Therefore, we examined the influence of elevated atmospheric CO2 (ambient + 360 mmol mol ) on root dynamics of sorghum (Sorghum bicolor) produced under conventional (tillage following win...