伟大领袖毛主席指出:“自力更生为主,争取外援为辅,破除迷信,独立自主地干工业、干农业,干技术革命和文化革命,打倒奴隶思想,埋葬教条主义,认真学习外国的好经验,也一定研究外国的坏经验——引以为戒,这就是我们的路线。”《从大寨改土的实践看土壤学理论的发展》这篇文章,是在毛主席的革命路线指引下,破除迷信,解放思想,发展自然科学理论的一个可贵的尝试。正确的科学理论,是从社会的阶级斗争、生产斗争和科学实验三大革命运动中产生出来的。由大寨大队贫下中农、干部和科学工作者组成的“三结合”小组,对大寨大队改土造田的实践经验,进行了初步总结;对土壤学理论,提出了一些新的看法。这些看法,在贫下中农和土壤学研究工作者中间,已经引起了重视和讨论。批判地吸取外国的经验,认真地总结 The great leader Chairman Mao pointed out: “Self-reliance, foreign aid supplemented, superseded superstition, independence of industry, agriculture, technological revolution and the cultural revolution, the overthrow of the ideology of slavery, the bury of dogmatism, and earnest study of foreign experience. We must study the bad experience of other countries - for the sake of warning, this is our line. ”The article entitled“ Development of Soil Theory from the Practice of Dazhai Earth Improvement ”was broken under the guidance of Chairman Mao's revolutionary line Superstitious, emancipating the mind, a natural attempt to develop the theory of science. The correct scientific theory emerges from the three major revolutionary movements of social class struggle, production struggle and scientific experiment. The “three combination” group composed of the poor middle peasants, cadres and scientific workers from the Dazhai Brigade carried out a preliminary summary of the practical experience of the Dazhai Brigade in improving soil and land. Some new opinions were put forward on the soil science theory. These views have drawn much attention and discussion among the poor middle peasants and pedologists. Draw lessons from foreign experience critically and concisely