我国向来是一个农业国家,几千年来对于耕种,收割,和保藏的方法一直是墨守成规,毫无改进。单就植物病虫害而言,稻子发生稻苞虫,棉花发生棉蚜,蔬菜发生菜蚤和硬壳虫,麦穗发了黑,山芋黑了心,或绿叶中途萎凋了、在封建官僚政治的社会里都没有人来管,以致任其自由发展,而不可收拾,国家和人民每年所遭受的损失是无法估计的。现在在我们英明的毛主席领导下,土改完 Our country has always been an agricultural country. For thousands of years, the methods of cultivating, harvesting and preserving have always been sticking to conventions and there is no improvement. In terms of plant diseases and insect pests alone, there are rice stems and insects in rice, cotton aphid in cotton, vegetable fleas and hard-shelled pests in vegetables, black wheat ears, dark heart in greens, or withered green leaves in the feudal bureaucratic society There is no one in charge so that they can not let themselves develop freely and the annual losses suffered by the country and the people can not be estimated. Now, under the wise leadership of Chairman Mao, land reform is completed