本文从农业生态系统的整体出发，对“野燕麦—小麦—农田—人的活动”４个因素之间的相互关系进行了初步研究。揭示出野燕麦种子在耕层土壤库的分布和出苗特点、杂草与作物的竞争规律，以及农事操作对杂草侵染循环的影响，从中找出杂草发生、发展过程中的一些薄弱环节，提出“断源、截流、竭库”的生态防治对策 Based on the overall agroecosystem, this paper has carried out a preliminary study on the interrelationship among the four factors of “wild oats-wheat-farmland-human activities”. Reveals the distribution and emergence characteristics of wild oat seeds in the topsoil bank, the competition law of weeds and crops, and the influence of agricultural operations on the cycle of weed infestation, and finds some weak points in the occurrence and development of weeds , Put forward “the source, intercepting, exhaustive” ecological control measures