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该文研究了新农药单甲脒对植物－土壤系统的生态影响，结果认为：所设置的６个浓度（对照、２５％单甲脒水剂稀释１５００倍、１０００倍、８００倍、５００倍、１００倍）对棉花虫害有不同程度的防治效果，以１００倍最好，可防治棉花多种虫害。单甲脒对棉花种群的结构与功能无不良影响。高浓度单甲脒从８００倍起至５００倍可使叶片气孔缩小，减少蒸腾速率，从而降低对水分的消耗，促进光合产物的形成，因而光合速率增长，生物量提高。单甲脒在棉花叶片和根系及土壤都有少量积累，且随浓度增加而呈上升的趋势，以１００倍的叶子积累明显为５．０３ｍｇ／ｋｇ，其余都在０．７ｍｇ／ｋｇ以下；在土壤仅１００倍的表土有少量积累为０．８１ｍｇ／ｋｇ。单甲脒可提高植物Ｎ、Ｐ含量和土壤Ｎ含量，对土壤其他性状指标影响不明显。初步认为：本试验所设置的浓度超过５００倍以上的处理不会对植物和土壤造成污染。
In this paper, the ecological effects of the new pesticide monoamidine on the plant-soil system were studied. The results showed that the concentrations of the six pesticides (control, 25% 100 times) have different levels of cotton pest control effect to 100 times the best, can prevent a variety of cotton pests. Monamidine has no adverse effect on the structure and function of cotton. High concentration of formamidine from 800 times to 500 times can reduce leaf stomatal, reduce transpiration rate, thereby reducing the consumption of water and promote the formation of photosynthetic products, and thus photosynthetic rate increased biomass. Monocarmine in cotton leaves and roots and soil have a small amount of accumulation, and with the increase of concentration tends to rise, with 100 times the accumulation of leaves was significantly 5.03mg / kg, the rest are below 0.7mg / kg; in A small amount of topsoil accumulated only 100 times as much as 0.81 mg / kg. Monamidine can increase plant N, P content and soil N content, and has no obvious effect on other soil properties. It is preliminarily believed that the treatment set in this experiment with the concentration over 500 times will not cause any pollution to plants and soil.