深耕地能获得农作物的大量增产,是我国农民在几千年生产实践中取得的宝贵经验。农谚:“深耕加一寸,顶上一茬粪”“水是血,粪是粮,深翻土地建谷仓”等都生动地说明了深耕增产的意义。1958年在我国棉花生产上取得了巨大的成绩,创造出了许多大面积的丰产经验,这是和以深耕为基础,结合大量施肥,合理密植等综合措施分不开的。1958年棉田深耕,一般由过去的4——5寸,增深到6——8寸,在不少丰产试验田,还有加深耕层到1尺以上的。根据1958年各地深耕试验的调查,一致证明深耕对棉花增产的作用是显著的。如山 The substantial increase in crop yields that can be obtained from deep plowing is a valuable experience that peasants in our country have gained through thousands of years of production practice. Farming proverbs: “deep plowing and adding an inch, top of a stubble” “water is blood, dung is food, deep turning the land to build barns” and so vividly illustrates the significance of deep plowing. In 1958, great achievements were made in the cotton production in our country, creating many large-scale and high-yielding experiences, which are inseparable from the comprehensive measures such as deep plowing, combined with massive fertilization and close planting. In 1958 cotton plowing, generally 4 - 5 inches from the past, deepened to 6 - 8 inches, in many high-yield test fields, as well as to deepen the plow to more than 1 foot. According to surveys of deep-plowing experiments conducted in various places in 1958, it has been consistently proved that the effect of deep plowing on cotton yield is significant. Like a mountain