The invention discloses an oilseed rape and wheat stubble
hybrid rice water saving direct
sowing cultivation method based on smashing, burying and retuning to field of preceding
crop straw, wherein the cultivation method combines
agricultural machinery with the agricultural technology closely. Appropriately-precocious, high-yield, stress-resistant and high-quality rice and oilseed rape or wheat varieties are selected, after the oilseed rape or wheat is mature,
straw smashing during
machine harvesting or separate
straw smashing after harvesting is adopted, the smashed straw is buried in the field through mechanical farming, direct
sowing of
hybrid rice is carried out through
sowing machines or workers under non-
irrigation conditions, emergence and growth of rice seedlings are guaranteed under non-basin
irrigation conditions, field management measures similar to normal rice cultivation are not taken until the three-leaf stage of the rice seedlings, and the yield equal to or higher than that of local
seedling raising and
transplanting rice under equal conditions is obtained finally. The
hybrid rice water saving direct sowing cultivation method based on smashing, burying and retuning to field of the preceding
crop straw realizes light and simple returning to field and effective utilization of oilseed rape and wheat straw, can substantially save water for rice
irrigation and avoid seasonal
water consumption peaks and water competition contradictions in rice production in
arid regions, and realizes cost-reducing efficient ecological rice cultivation.