The Best Legume For Cover Crop
Categories:
Soils, Fertilizers and Irrigation
What would you advise to sow as a crop to plow under? When should it be
sowed, and when plowed under?
The best crop for green-manuring in any locality is the one which will
make the best growth when surplus moisture is available for it, and when
its growth can be undertaken with least interference with irrigation,
cultivation and other orchard operation. Generally in California, such a
crop can be most co
veniently grown during the rainy season, but in some
parts of the State where irrigation water is available, a summer growth
can be procured with very satisfactory results; so that we are now
growing in California both wintergrowing legumes, like field peas,
vetches, burr clover, etc., which are hardy enough to grow in spite of
the light frosts which may prevail, and are also growing summer legumes
which thrive under high temperature, like cowpeas and other members of
the bean family, and for which water can be spared without injury to the
fruit trees which share the application of the land with them. The
plants which are worth trying are burr clover, common or Oregon vetch,
Canadian field pea, and the common California or Niles pea. Whichever
one of these makes the best winter growth so that it can be plowed under
early in the spring, say in February or March, while there is still
plenty of moisture in the soil for its decay, without robbing the trees
or rendering the soil difficult of summer cultivation, is the plant for
you to use largely. All these plants should be sown in California
valleys and foothills, as soon as there is moisture enough from rainfall
to warrant you in believing they will catch and continue to grow. If the
land is light they can be put in with a cultivator and plowed under
deeply in the spring, as stated. If the land is heavy, probably a
shallow plowing would be better to begin with.