In an opportunity cropping system, crops are grown when soil water is adequate and there is a reliable sowing window.
22.
Structurally related physical properties and biological processes of soil often change when different cropping systems, tillage, or management practices are used.
23.
The aquifer is quickly becoming depleted and, sometime in the future, all farms may have to revert to dry-land cropping systems.
24.
Within this cropping systems fast growing tree species like willows and poplars are planted in growing cycles of three to five years.
25.
CWC is focusing on designing irrigation and cropping systems that can be operated and maintained locally in order to provide farmers with higher-value cash crops.
26.
Consortium scientists are also trying to understand how upland rice farmers'cropping systems contribute to soil erosion, with the aim of proposing possible erosion control techniques.
27.
Dual economies may exist within the same sector, for example a modern plantation or other commercial agricultural entity operating in the midst of traditional cropping systems.
28.
As a result of the lack of resistance in cultivated species of switchgrass, there is a potential danger of developing large scale disease within energy cropping systems.
29.
In most cases multipurpose trees have a primary role; such as being part of a living fence, or a windbreak, or used in an ally cropping system.
30.
The study pointed out that a long term Giant reed cropping system, characterized by low tillage intensity, positively affect the amount and quality of soil organic matter.
