Experiments on a new species of oilseed rape showed that growing rapeseed in China's vacant winter farm land in the southern regions is feasible, according to an April 16th statement from the Oil Crops Research Institute at the Chinese Academy of Agricultural Sciences (CAAS).
The results may significantly increase China's self -sufficiency proportion of vegetable oil.
As of now, only 30 percent of vegetable oil used in the country is domestic. The 2023 No. 1 central document proposes to fill up vacant winter farm fields in the southern regions of China with oilseed rape.
To realize this goal, however, is a challenge. According to Lu Jianwei, professor at Huazhong Agricultural University, the harvest of the latest crop before winter, when delayed, will result in low temperatures and a shortened period for growing oilseed rape, making it hard for typical species of the plant to yield quickly.
A research team at the CAAS tackled this challenge with success. It took six years for academician Wang Hanzhong and his team to develop a new oilseed species dubbed "Zhongyouzao No.1," which means early oil production.
Experiments have shown record high yield of the plant under the triple maturity model with short fertility period.
"Our self-sufficiency proportion of vegetable oil will increase by about 12 percent when Zhongyouzao No.1 is widely applied in China," said Wang Xinfa, researcher at CAAS.