A PRELIMINARY investigation of the effect of the nitrogen supply on the growth of Agropyron repens L. Beauv. showed that reducing the nitrogen level caused an increase in the number of rhizomes ...
TWITCH, or couch, grass (Agropyron repens) is among the common weeds which are difficult to eliminate. It is widespread, and persistent 'cleaning' of the soil seldom eliminates the whole stock; even ...
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