In this experiment, Jimai 22 was used as test material to investigate the impacts of acetochlor on the growth characteri^*stics of dryland wheat and its residue in wheat grain and soil under field conditions. The results showed that acetochlor at a dosage of 750 g hm⁻² could effectively control weeds in wheat fields and benefit the growth of wheat in dryland. The plant height, ear length, number of tillers, aboveground and underground dry weight were heavier compared to the control after the application of acetochlor. From the jointing period to the filling period, the residual amount of acetochlor in the 0–20 cm and 20–40 cm soil layers was gradually reduced in the overall change, and the residual amount of acetochlor in the 0–20 cm soil layer in each growth period was more than the residual that of in the 20–40 cm soil layer. At the time of harvest, the residual amount of acetochlor in wheat grains was lower than the maximum allowable residue limit (MRL) value of acetochlor on wheat recommended by the United States. In addition, the residue of acetochlor in the soil of wheat field was also very small, all of which were lower than 0.02 mg kg⁻¹. It can be seen that the application of acetochlor is safe for wheat field soil and humans if the wheat is applied once after sowing, at the dosage is 750 g hm⁻².

在该实验中，济麦22用作试验材料调查乙草胺的影响上的生长characteri ^*旱地小麦STICS及其在小麦和土壤田间条件下的残留物。结果表明乙草胺的剂量为750 g hm ^-2可以有效防治麦田杂草，有利于旱地小麦的生长。施用乙草胺后，与对照相比，株高，穗长，分till数，地上和地下干重均较重。从拔节期到灌浆期，总体变化使0-20 cm和20-40 cm土壤层中乙草胺的残留量逐渐减少，而0-20 cm土壤层中乙草胺的残留量逐渐减少。每个生长期都大于20–40 cm土层中的剩余生长期。收获时，小麦籽粒中乙草胺的残留量低于美国推荐的小麦中乙草胺的最大允许残留限量（MRL）值。另外，麦田土壤中乙草胺的残留量也很小，^-1。可以看出，如果在播种后施用一次小麦，剂量为750 g hm ^-2，则乙草胺对麦田土壤和人类都是安全的。