Telegraph: China has faced a continuous shift of challenges over the past 50 years: from poverty in the 1950s, ecological degradation in the 1970s, environmental pollution in the 1990s, to global warming in the new century. Before the founding of the People’s Republic in 1949, China was trapped in poverty. Agricultural development was therefore one of the first priorities. But there was only a partial success because traditional technologies were unable to increase agricultural …