39. Mechanized rice harvesting
With this decline in the rural population, efforts have been to convert agriculture from labor intensive to highly productive.
In order to stabilize rice production, in particular, agriculture has been made highly productive in a way that could be referred to as the industrialization of agriculture, typified by the redevelopment of agricultural land, the introduction of large-scale machinery and the utilization of large quantities of chemical fertilizers and agricultural chemicals.
40. Spreading agricultural chemicals on a rice field
The dispersal of agricultural chemicals in rice fields has also become broader in scale. A large portion of the agricultural chemicals that are used becomes combined with water, polluting the soil and rivers.
41.Rain falling in a city
Furthermore, DDT, BHC, sumithion and other components of agricultural chemicals are converted to a gas when the temperature rises, pollute the atmosphere and fall extensively as "agricultural chemical rain."
