土壤水储存量和土壤水可利用量随气象条件、灌溉以及作物状况不断变化；
The storage and the usable amount of soil water resource vary with the situations of meteorology, irrigation and crop growing.
根据《2004年粮农状况》，即使穷人的主要粮食作物——小麦、稻米、白玉米、马铃薯和木薯——亦受到忽视。
Even the major food crops of the poor—wheat, rice, white maize, potato, and cassava—are also being neglected, according to SOFA 2004.
如果能够真正实现充分发挥生物质农作物潜能的目标就必需改变这种状况。
It is this that must change if the full potential of biomass crops is to be realised.
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