It is suitable for hybrid rape no tillage direct seeding cultivation in Changjiang River and Huaihe river valley. Experiments show that it can economize cost and improve efficiency of production and keep the best sowing time and make the high yield possible. And its yield can reach more than 2400 kg/hm2. Experiments also show that appropriate early sowing is the key of high yield. If the sowing time is late, the fall of yield will increase. The suitable sowing time ranges from Sep. 15 to Sep. 25. By increasing density to get an enough number of colonies, the best density is 270 thousand individual per hm2. The yield also can be influenced by different nitrogen and presents a parabola. It is not better to yield too more or too less. The study shows that the highest yield is in the range of nitrogen from 75 to 90 kg per hm2.
