1960年乔司农場从广西引进高产作物——木薯試种成功。9亩木薯生長良好,平均亩产3,648斤,最大的一株产薯13斤。木薯耐旱耐瘠,只要一年中有7个月以上的无霜期、年雨量达300-500毫米以上的地区卽可栽培。它对土壤的适应性也很强,不論瘠薄的砂砾土、紅壤以及滨海的輕盐土均可种植。目前我国在广东、广西、福建、台湾、云南、湖南、江西等省(区)均有种植。本省尚在試种阶段,种植地区还很少,不过看来这一新作物在本省大有发展希望。木薯是大戟科、木薯屬的一种多年生灌木(見图1)。株高3-5尺,茎上部有分枝,叶掌狀深裂。木薯的块根(图2)及叶都含有氰的配醣体,这种配醣体經过特殊酵素水解后卽产生游离氰化氢,对人畜有毒。因此,块根食用时应削去其皮层(内含毒素 Qiao Si farms in 1960 introduced high-yield crops from Guangxi - cassava trial success. 9 mu of cassava grow well, with an average of 3,648 catties per mu, the largest producing 13 catties of potato. Cassava drought and barren, as long as one year in more than 7 months of frost-free period, annual rainfall of 300-500 mm above the area 卽 can be cultivated. Its adaptability to the soil is also very strong, regardless of infertile gravel soil, red soil and coastal saline soil can be planted. At present, China has planted it in Guangdong, Guangxi, Fujian, Taiwan, Yunnan, Hunan and Jiangxi provinces. The province is still in the cultivation phase, with few growing areas, but it appears that the new crop has great prospects for development in this province. Cassava is a perennial shrub of Euphorbiaceae and Cassava (see Figure 1). 3-5 feet tall, branches on top of branches, palmately lobed. Cassava root (Figure 2) and leaves contain cyanogen glycosides, this glycoside after a special enzyme hydrolysis 卽 produce free hydrogen cyanide, toxic to humans and animals. Therefore, the roots should be cut when eating their cortex (containing toxins