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我省是全国四大烟区之一,烤烟是我省的优势作物,多为一年一熟或两熟种植,前茬有油菜、豆类、麦类和绿肥。生产中常因小麦晚收与烤烟早栽有争地矛盾,麦后栽烟产低质劣。而且烤烟与秋播作物衔接时,尚有2—3月的空闲期可利用。因此,因地制宜地进行粮烟间、套、复种的多熟种植,是解决粮烟争地矛盾,提高耕地生产力的重要途径之一。为此,我们于1973年—1978年开展以烟为主的粮烟间套作试验,并在黔西、遵
The province is one of the four major tobacco-growing areas in the country. Flue-cured tobacco is the dominant crop in our province. It is mostly cultivated in one or two crops a year. There are rape, beans, wheat and green manure in the former crop. Production is often due to late harvest of wheat and flue-cured tobacco early contradictions controversy, wheat plantings of low quality tobacco. And flue-cured tobacco and sowing crop convergence, there are 2-3 months of free time available. Therefore, it is one of the important ways to solve the contradiction between grain and tobacco land dispute and improve the productivity of arable land that the multi-cropping of grain, tobacco and multi-seed crop is suitable for local conditions. To this end, we conducted smoke-based intercropping experiments between 1973 and 1978 and in Qianxi,