“土”是农业“八字宪法”的第一章,要不断提高作物产量,首先必須从多方面来改良土壤,提高其肥力。肥沃的土壤除了必須有深厚多肥的土层外,还要求有良好的土壤結构。所謂良好結构就是指能把土粒适当凝聚起来成为团聚体或称团粒的性能。勤劳聪明的我国农民一向就把有团粒結构的土壤看做是最肥沃的土壤。例如,我省的蚕沙土、鼠粪泥、烏沙土等就是农民对具有显著团粒結构的土壤的命名。当前大办农业、大办粮食的形势要求进一步迅速地增进土壤肥力,以提高作物产量。目前,提高土壤肥力的基本办法仍然是大量施用有机肥料,增加士壤有机质;但是,也已出現了这样的可能性,就是用人工合成的高分子化合物来改进土壤性质,提高土壤肥力。这种特殊类型的高分了化合物就叫做合成土壤結构改良剂或簡称合成土壤改良剂。由于合成土壤改良剂具有用 “Soil” is the first chapter of the “character constitution” of agriculture. To continuously increase the crop yield, we must first improve the soil and increase its fertility in many aspects. Fertile soil in addition to the need for a deep and fat soil, but also requires a good soil structure. The so-called good structure means that the soil particles can be properly aggregated into aggregates or groups of particles. Hard-working and smart peasants in our country have always regarded the soil with the cohesive structure as the most fertile soil. For example, silkworm sands, ratfew, wusha soil in our province are the nomenclature for peasants to soil with a significant aggregate structure. At present, the situation of majoring in agriculture and opening bigger foodstuffs requires that soil fertility should be further and rapidly increased so as to increase crop yields. At present, the basic method for improving soil fertility is still to use large amounts of organic fertilizers to increase organic matter in the soil. However, it has also emerged that the use of synthetic polymer compounds to improve the soil properties and soil fertility. This particular type of high-grade compound is called a synthetic soil structure improver or simply a synthetic soil conditioner. As a synthetic soil conditioner is useful