The extension service suggests a crop such as clover, buckwheat or winter rye.

推广中心建议可种苜蓿、荞麦或冬黑麦之类的作物。

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Hans kandel works at the North Dakota state university extension service in Fargo.

汉斯·坎德尔在法戈的美国北达科他州州立大学推广服务部工作。

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Food gardeners can join a network and put their garden on a map on the extension service Web site.

粮食园艺家可以加入一个社交网络，将自己的花园上传到推广服务网站的地图上。

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Doug Akers from the cooperative extension service at Purdue University in Indiana suggests straw or shredded leaves for the mulch.

VOA: special.2010.06.29

Susan Trice from the University of Maryland Cooperative Extension Service says cabbage takes about sixty to ninety days to grow.

VOA: special.2009.03.03

The University of Illinois Extension service says you should harvest beans when the pods are firm and have reached their full length.

VOA: special.2009.03.24

The Texas Agricultural Extension Service says that this year's drought is the worst the state has suffered since the 1950s.

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Garden centers, nurseries, local native plant societies, county extension service offices, books and the Internet can all be great resources for researching the best, most water-efficient plants.

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"Compaction is the biggest enemy of lawn grass, " said Reeves, a retired horticultural agent of the University of Georgia Cooperative Extension Service, who now hosts radio and television shows about lawn and garden interests.

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