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对黄山药(Divscotea panthaica)两年田间试验的结果表明:在根龄、方式、施肥组合和施肥期4个因素中,根龄是影响出苗率和产量的主要因素,与出苗率和产量为反向关系(即一年生>二年生>三年生);施肥组合是影响生长量的主要因素,其中以施N59.7、P119.7、K29.7 kg/ha的生长量最高,施N 29.9、P 80.1、K 89.1kg/ha的次之;栽培方式主要影响薯蓣皂甙元含量,影响大小顺序为:育苗移栽>地膜覆盖>露地栽培;施肥期只对生长量和产量有一定的影响,以施底肥的最好,分施苗和花肥的次之,施苗肥的最差.出苗率和生长量是构成产量的两个要素.选用嫩种根茎和施用适量N、P、K肥是薯蓣高产栽培的重要措施.
The results of two-year field trial of Divaricote panthaica showed that root age was the main factor affecting the germination rate and yield in terms of root age, mode, fertilization combination and fertilization period, (Annuals> biennials> three-year-olds). The combination of fertilizers was the main factor affecting the growth, of which, N59.7, P119.7 and K29.7 kg / ha had the highest growth and N29.9 and P80.1 , K 89.1kg / ha followed by cultivation methods mainly affect the content of diosgenin, the order of magnitude is: seedling transplanting> mulching> open-field cultivation; the fertilization period only has certain influence on the growth and yield, Of the best, divided Shih Miao and the next fertilizer, Shi Miao worst.The emergence rate and growth are the two elements that constitute the yield.Select the use of tender rhizomes and application of appropriate amount of N, P, K fertilizer is high yield cultivation of yam Important measure.