活化磷矿粉的生物学效果研究初报

温室砂培试验研究了活化磷矿粉对玉米生长和吸收磷肥的影响。结果表明:1)与未经活化的低品位磷矿粉相比较,活化磷矿粉能够显著促进玉米的生长和氮磷钾的吸收,其中,活化磷矿粉B和腐殖酸配施与过磷酸钙效果相当;2)对于活化磷矿粉的各种施用方法,活化磷矿粉B效果好于A,配施效果好于单施,而在配施中腐殖酸好于有机肥。

Effects of activated phosphorite powder on the nutrients utilization of maize

The effects of activated phosphorite powder on the phosphorus utilization of maize were studied by nutrient quartz_sand culture experiment in the green_house.The major findings were summarized as follows: 1) Activated phosphorite powder had improved the growth and the ratios of phosphorus utilization of maize significantly compared with the treatment of unactivated phosphorite powder,especially,the impacts of organic activation substance B activate phosphorite power compounded with humus acid was senior,and had no significant difference at 5% level compared with(Ca(H_2PO_4)_2);2) in all the treatments of activated phosphorite powder,the organic activation substance B was better than(A,) the effect of activated phosphorite powder combined with humus acid or organic fertilizer were better than the single activated phosphorite powder,and the impacts of humus acid were better than organic fertilizer.