中药黄精套作玉米立体栽培模式研究初报

Primary Report on the Study of Stereoscopic Cultivation Mode of Intercropping Chinese Herb Rhizoma Polygonatum with Corn

[目的]为研究以黄精为主体作物的立体多熟种植模式提供借鉴。[方法]采用随机区组设计,重复3次,小区面积6.67m2,以双株玉米30000窝/hm2间作红薯为对照⑦,研究贵州省绥阳基地栽培黄精套作不同密度玉米的模式。[结果]各处理黄精产量依次是②单株玉米30000窝/hm2>①单株玉米19995窝/hm2>③单株玉米36000窝/hm2>④双株玉米19995窝/hm2>⑤双株玉米30000窝/hm2>⑥双株玉米36000窝/hm2,玉米产量依次为⑤>②>④>③>⑥>⑦>①,总产值是②>③>⑤>④>①>⑥>⑦,纯收入②>③>④>⑤>①>⑥>⑦,产投比②>③>④>①>⑤>⑥>⑦,劳动生产率为②>③>①>④>⑤>⑥>⑦,总投入⑦<①<②<③<④<⑤<⑥。30000窝/hm2黄精带状套种单株登海3号玉米30000株/hm2,产量、产值、纯收入、产投比、劳动生产率等均为最好,与当地常规栽培模式比较,总产值增加187.7%,纯收入增加339.0%。[结论]30000窝/hm2黄精套种单株玉米30000窝/hm2为当地黄精与玉米套作的最佳立体栽培方式。

[Objective] The research aimed to provide reference for study stereoscopic multiple intercropping pattern with Rhizoma polygonatum as main crop.[Method] The randomized block design with 3 repeats and plot area of 6.67 m2,double corn plants 30 000 holes/hm2 as intercropping with sweet potato as CK⑦,the cultivation pattern of intercropping R.polygonatum with different densities of corn in Suiyang base of Guizhou province was studied.[Result] The yield order of R.polygonatum in each treatments was single corn plant 30 000 holes/hm2②〉single corn plant 19 995 holes/hm2 ①〉single corn plant 36 000 holes/hm2 ③〉double corn plants 19 995 holes/hm2 ④〉double corn plants 30 000 holes/hm2⑤〉double corn plants 36 000 holes/hm2 ⑥,the yield order of corn was ⑤〉②〉④〉③〉⑥〉⑦〉①,the order of total yield value was ②〉③〉⑤〉④〉①〉⑥〉⑦,that of pure income was ②〉③〉④〉⑤〉①〉⑥〉⑦,that of ratio of yield to input was ②〉③〉④〉①〉⑤〉⑥〉⑦,that of labor productivity was ②〉③〉①〉④〉⑤〉⑥〉⑦,and that of total input was ⑦〈 ①〈②〈③〈④〈⑤〈⑥.All yield,yield value,pure income,ratio of yield to input and labor productivity and etc of intercropping 36 000 holes/hm2 R.polygonatum in strip shape with single corn Denghai3 plant 30 000 holes/hm2 were best.Compared with local conventional cultivation mode,the total yield value increased 187.7% and the net income increased 339%.[Conclusion] Intercropping 36 000 holes/hm2 R.polygonatum with single corn plant 30 000 holes/hm2 was the optimum stereoscopic cultivation pattern of intercropping local R.polygonatum with corn.