While forests can be cropped for timber trade, they are also intensively cut for firewood.
Moreover, nutrients are exported from the annually cropped ecosystem in the harvest and are usually not returned in human manure.
Reducing and/or eliminating tillage operations can significantly reduce turnaround time on lands that are double or triple cropped annually.
Those who are grateful explain carefully to their children that they are not the owners of the fields cropped by them.
The comparison of nitrogen use and leaching in sole cropped versus intercropped pea and barley.
The upper reach of the water-spread area (tank-bed) was double cropped.
In turn, the cropped flue is echoed in the white shaft of space between the adjacent photos.
At both locations the soils have been cultivated for centuries and mainly cropped with cereals for the past four decades.
