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通过 3414脱毒马铃薯平衡施肥试验结果表明 ,毕节地区脱毒马铃薯的最优施肥方案为 ,施N肥 9 0 9～10 0 2kg/ 6 6 7m2 ,P肥 4 0 6～ 4 2kg/ 6 6 7m2 ,K肥 11 4 3～12 18kg/ 6 6 7m2 ,N∶P∶K平均为 1∶0 4 3∶1 2 3。在此施肥方案下化肥的平均利用率为N 4 2 17% ,P2 O539 2 9% ,K2 O72 94 %。
The results of the balanced fertilization experiment on 3414 virus-free potato showed that the optimal fertilization program for the virus-free potato in Bijie Prefecture was: application of N fertilizer from 9 0 to 10 0 2 kg / 6 6 7m 2 and P fertilizer from 40 6 to 42 kg / 6 6 7m 2 , K fertilizer 1143 ~ 12 18kg / 6 6 7m2, N: P: K averages 1: 0 4 3: 1 2 3. Under this fertilization program, the average utilization rate of fertilizers was N 4 2 17%, P2 O 539 29% and K2 O 72 94%.