Figure 7
Yield and economic benefits of different cropping systems. The price of the crop is based on the local price in the second half of the year. Jingbian: rapeseed 4.5 yuan/kg, potato 1.0 yuan/kg, oil sunflower 5.0 yuan/kg; Jingyuan: rapeseed 5.0 yuan/kg, wheat 2.2 yuan/kg, flax 7.0 yuan/kg; WuZhong: rapeseed 4.0 yuan/kg, vegetables 0.8 yuan/kg, green corn 0.23 yuan/kg; Xinjiang: rapeseed 4.0 yuan/kg, corn 1.9 yuan/kg, seed melon 13.0 yuan/kg, peanuts 8.1 yuan/kg, oats 2.8 yuan/kg; Gansu: sunflower 6.0 yuan/kg; bitter buckwheat 3.2 yuan/kg, sweet buckwheat 4.2 yuan/kg, corn 1.8 yuan/kg, rapeseed 4.5 yuan/kg, foxtail millet 2.6 yuan/kg, rice 2.8 yuan/kg; Beijing: rapeseed 4.5 yuan/kg, corn 1.7 yuan/kg, soybean 3.8 yuan/kg, wheat 2.4 yuan/kg. Different lower case letters indicate significant differences of total yield at P < 0.05; different uppercase letters indicate significant differences of total production value at P < 0.05; error bars denote the standard error of the mean (n = 3).
