Nong ye huan jing de hua xue wu ran/ Nong ye huan jing- hua xue wu ran wu Shen- nong ye huan jing- huan jing wu ran Hai yang yu huan jing she hui xue wen ku Nong ye huan jing bao hu Shang ye huan jing she ji = nong ye hua xue juan Dong fang de hu huan/ Peng de huai ping chuan/