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采用顺序排列完全试验设计,进行麦/玉米/甘薯三熟制条件下不同品种的甘薯与玉米共生期长短对甘薯生长的影响试验。结果表明,共生期的长短对甘薯影响很大,共生期长,虽然生长时期也长,但由于荫生时期长,影响根系生长,产量降低;共生期短,生长时期太短,产量也不高。而且品种之间也存在着差异,各品种适宜的共生期视品种的生育期、结薯习性、耐荫程度等特性而定。
The order of the complete experimental design was used to study the effects of different varieties of sweet potato and maize on the growth of sweet potato under wheat / maize / sweet potato trimming conditions. The results showed that the duration of symbiotic period had a great effect on sweet potato, and the symbiotic period was long. Although the growth period was also long, the growth of root system was affected by the long shade period and the yield was reduced. The symbiotic period was short and the growth period was too short and the yield was not high . And there are also differences between varieties, the appropriate symbiotic variety of each species depending on the species of growth period, tuber habits, shade degree and other characteristics may be.