The farmer therefore arranges his cropping in such a way that roots, or leguminous crops, succeed the cereal crops.
The three-field system of cropping a patch of land until its fertility is exhausted, and then allowing it to revert to the primeval condition, is still pursued, and both landowners and peasantry suffer from want of capital and lack of agricultural training.
In consequence of these more favourable conditions there is greater variety in the cropping; a good deal of wheat is grown, as well as beetroot for sugar, fibre plants and oleaginous plants, fruit, and even (W.
The exhaustion of the soil induced by both barley and wheat is, however, characteristically that of available nitrogen; and when, under the ordinary conditions of manuring and cropping, artificial manure is still required, nitrogenous manures are, as a rule, necessary for both crops, and, for the spring-sown barley, superphosphate also.
The opportunities which rotation cropping affords for the cleaning of the land from weeds is another distinct element of advantage.