Vous avez cherché: fertile (Anglais - Swahili)

fertile land for late cultivation
ardhi yenye rutuba

and far from being a plague, they had found an opportunity with the fertile soil after the withdrawal of water from the floods.
na mbali na kuwa mapigo, mafuriko hayo yalipoisha, yaliacha udongo wenye rutuba. nao wakaazi wa vijiji walichukua fursa kuutumia udongo huo.

afghanistan's 'green zone', a stretch of fertile, cultivated ground along the helmand river valley.
'eneo kijani’'s 'nchini afghastan', pana lenye rutuba, lililolimwa pembezoni mwa bonde la mto helmand.

the example of those who spend their property to please god out of their firm and sincere intention is as the garden on a fertile land which, after a heavy rainfall or even a drizzle, yields double produce.
na mfano wa wale wanao toa mali zao kwa kuitafuta radhi ya mwenyezi mungu na kuzipa nguvu roho zao ni kama mfano wa bustani iliyo mahali pa juu, ikaifikia mvua kubwa na ikaleta mazao yake mardufu; na hata kama haifikiwi na mvua kubwa basi manyunyu hutosha.

and the likeness of those who spend their substance, seeking to please allah and to strengthen their souls, is as a garden, high and fertile: heavy rain falls on it but makes it yield a double increase of harvest, and if it receives not heavy rain, light moisture sufficeth it.
na mfano wa wale wanao toa mali zao kwa kuitafuta radhi ya mwenyezi mungu na kuzipa nguvu roho zao ni kama mfano wa bustani iliyo mahali pa juu, ikaifikia mvua kubwa na ikaleta mazao yake mardufu; na hata kama haifikiwi na mvua kubwa basi manyunyu hutosha.