The invention discloses a method for
intercropping astragalus membranaceus and
jatropha curcas, belonging to the technical field of
crop planting. The method comprises the following steps: the
astragalus membranaceus is planted at April to May of every year under the conventional planting mode of the
jatropha curcas; the
astragalus membranaceus is planted with the
row space of 50cm to 55cm in theline of the
jatropha curcas in same field; the seed-using amount of the
jatropha curcas is 1000 to 1500g, and the planting distance thereof is 10cm to 12cm; the additional
fertilizer consists of high-effective compound
fertilizer and superphosphate
fertilizer with the ratio of 1:2 to 5; and the applying amount of the additional fertilizer in every mu is 10 to 15kg. The planting mode effectively exerts the diversity of
biological species when two types of crops with different subject categories and different
plant height are interplanted, supplies nutrients to the
jatropha curcas, reduces the occurrence of pest and
disease damage, thus increasing the yield and production value of the two types of crops, leading the astragalus membranaceus to increase the yield by 50kg / mu than monotypic planting and leading the
jatropha curcas seeds to increase the yield by 40kg / mu than monotypic planting.