万寿菊圆葱生态协调互作丰产栽培技术研究

Studies on High Output Cultivation Technique of Marigold and Onion in Harmonized and Interacted Ecological Environment

为引导万寿菊产业向绿色产业发展，研究了万寿菊无公害生态栽培技术以使农药施用量得到控制。研究证明，万寿菊、圆葱两个高经济作物生态型相嵌套作成为新型立体栽培方式。两作物套作后生长发育期交错75d，各自有其生长空间，互不干扰，且能相互提供良好的生长环境条件，弥补对自然条件的不适，既解决了万寿菊病害问题，又预防了圆葱烂头问题。立体栽培后两作物地表与地上部产量大大提高了单位面积收益，比原来增加3～4倍，提高土地利用率33．3％，其种植面积66．7％为免耕。

The diseases of marigold get more severe in the fields. To lead to green industrilization, the ecological cultivation on marigold had been studied for controlling the amount of pesticide. Two types of plants of various groups of ecological phase were utilized in this paper. The interplanted plants supplementarily affected each other for prevention of plant diseases and elimination of pests. They grew together about 75 days in the field. The proportion of ridge--planting is 2：1, which not only had enough space to grow up or develop , but also supplied good habitat mutually. The ecological cultivation reduced diseases of marigold as well as prevented from onion rotten. The benefit per unit area has been improved greatly and farmer＇s income had raised from 4 to 5 times as a result of stereoscopic cultivation. The land utilization ratio had been raised 33.3%.