The invention discloses a cultivation method for rice direct dibble seeding in wedged ditches, which belongs to the field of rice cultivation. In order to solve the problem that yield potential of high-yield high-quality varieties is difficult to fulfill by existing cultivation methods, the cultivation method for rice direct dibble seeding in wedged ditches includes the steps: firstly,
tilling soil, namely performing no turning or
irrigation after preceding harvesting, and digging a field to obtain a plurality of ditches, wherein row spacing between each two adjacent ditches is 18-22cm, each
ditch in a triangular shape is wide end up, each
ditch is 5-20cm deep and 3-6cm wide, two sides of each
ditch are slopes relative to the horizontal plane, and an included angle between each slope and the horizontal plane is 40 DEG-70 DEG; secondly, post-treating rice seeds; thirdly, performing base
fertilizer application, direct dibble seeding, and
irrigation; and fourthly, performing field management. The traditional ploughing is replaced with wedging, so that farming intensity is reduced, interference to soil is lowered, energy sources are saved, labor is reduced, seeds for use are few, soilwater
retention capacity is high, soil
system stable is high,
fertilizer utilization rate is high,
root system growth environment is improved, and cost reducing, yield increase and efficiency enhancement are achieved.