摘要
研究在磷肥用量一定水平下,氮、钾肥不同比例及施用时期对早熟菜用型马铃薯品种费乌瑞它产量的影响试验结果表明,N、P_2O_5、K_2O总用量分别为12、10、20 kg/667 m^2,处理7(100%P_2O_5、60%N、40%K_2O作基肥,20%N、30%K_2O作苗肥,20%N、30%K_2O作现蕾肥)马铃薯产量最高,为1 360.3 kg/667 m^2;处理1(N、P_2O_5、K_2O全作基肥)马铃薯产量最低,为985.9 kg/667 m^2;磷肥用量一定时,氮肥和钾肥分期施用比一次性施用较好,马铃薯可增产123.4~374.4 kg,增产率12.5%~37.9%,平均增产222.7 kg,平均增产率为25.8%。
This paper investigated the effects of different application ratios and times of nitrogen and potash fertilizers on yield of early-maturing potato cultivar Favorite when controlled phosphatic fertilizer on the certain dosage level.The results showed that,when the total dosages of N,P_2O_5 and K_2O was 12,10 and 20 kg/667 m2 respectively,the potato yield of treatment 7(100% P_2O_5,60% N and 40% K_2O as base fertilizer,20% N and 30% K_2O as seedling fertilizer,20% N and30% K_2O as flower budding fertilizer) was the highest,which was up to 1 360.3 kg/667 m^2,and the yield of treatment 1(all N,P_2O_5 and K_2O as base fertilizer) was as low as 985.9 kg/667 m^2.It was better when nitrogen and potash fertilizers were applied by stages than one-off,and could increase yield of 123.4 to 374.4 kg,with the average of 222.7 kg.And the yield increasing ratio was 12.5% to 37.9%,with the average of 25.8%.
出处
《长江蔬菜》
2016年第16期69-71,共3页
Journal of Changjiang Vegetables
关键词
早熟马铃薯
产量
施肥
Early-maturing potato
Yield
Fertilization
