硅钙钾肥不同用量对“生地”产量的影响  

Effects of Si, Ca, K, Fertilizer Applications on Dried Radix Rehmanniae

作　　者：王成[1] 李葆来[1] 杨安民[1] 

机构地区：[1]西北农林科技大学农学院棉花所,陕西杨凌712100

出　　处：《中国农学通报》2005年第2期184-186,共3页Chinese Agricultural Science Bulletin

摘　　要：以硅钙钾肥(陕西华县荣昌钾肥厂提供)为试材,研究了该矿质肥料在生地上的应用效果。结果表明,有设置的7个处理中,以施肥1500kg/hm2增产最高,鲜、干重产量分别比对照高22.44%和40.57;施肥量750kg/hm2的产出投入率最高,其鲜药产出投入率为6.53,干药为18.81;经回归分析,得出硅钙钾肥的最佳施用量,鲜重为2086.95kg/hm2,干重为2062.2kg/hm2,最高产量分别为24.79t/hm22和6.53t/hm2。Experiment on effects of Si, Ca, K fertilizer applications on dried Radix rehmanniae was done. The result showed that among seven treatments, output of dried Radix rehmanniae was highest as the amount of Si, Ca, K fertilizer application was 1500kg per hectare and the fresh output and dry one increased by more 22.44% and 40.57% than one of CK; and that the profit was the best as the amount of Si, Ca, K fertilizer application was 750 kg per hectare and input/output was in turn 6.53 and 18.81 as fresh and dry. The suitable amount of Si, Ca, K fertilizer application thongh regression was 2086.95kg(per hectare) with 24.79 ton fresh output and 2062.2kg with 6.53 ton dry output.

关 键 词：钾肥 干重 产量 鲜重 最佳施用量 施肥量 高产 生地 产出 西华县 

分 类 号：S513[农业科学—作物学] F724[经济管理—产业经济]