坡缕石对红芪生长动态及产量的影响

 为掌握红芪在加施坡缕石后的生长规律，建立一套先进的红芪生产技术，采用单因素随机区组设计，研究了加施坡缕石0、750、1500、2250、3000kg/hm2对红芪生长动态及产量的影响。结果表明，坡缕石在750~3000kg/hm2施用量下，能提高红芪生长期株高、主根长、根径、地上和根的干物质积累量和产量，且加施坡缕石为2250kg/hm2时的产量最高，较对照增产23.44%（P＜0.01），综合性状最优；其次是加施1500kg/hm2。这对红芪栽培中合理配施N、P、K肥料及坡缕石提供了一定依据。

Effects of Playgoskite on Growth Development and Yield of Heysarum polybotrys Hand-Mazz

This paper discusses growth rules of Hedysarum polybotrys Hand-Mazz. With playgoskite being added, a set of production technologies is established for Hedysarun polybotrys Hand-Mazz. The single factor randomized block is designed in the experiment to study the growth development and yield of Hedysarum polybotrys Hand-Mazz, under 5 types of treatments with playgoskite of 0, 750, 1500, 2250 and 3000kg/hm2. The results show that playgoskite can enhance the stilbazolium height, main root length, root diameter, dry material accumulation quantity in ground and root and the yield of Hedysarum polybotrys Hand-Mazz, when it is used in the range of 750~3000kg/hm2. And the yield is the highest, when it is used in 1500kg/hm2, with an increase of 23.44%(P＜0.01) compared to the control group, and with optimum overall characteristics. The next comes with 1500kg/hm2. This study provides an important scientific basis for reasonably using N, P and K fertilizers and playgoskite in the cultivation of Hedysarum polybotrys Hand-Mazz.