中低产旱地均衡丰产平衡施肥技术  

The Balanced Application Technique for Balance High Yield in the Dry Land with Middle and Lower Yield

作　　者：郑元红 潘国元 王慧 肖莉 黄文林 

机构地区：[1]贵州省毕节地区经作站,贵州毕节551700 [2]贵州省毕节地区农业局,贵州毕节551700

出　　处：《贵州农业科学》2009年第1期82-84,共3页Guizhou Agricultural Sciences

基　　金：贵州省重大攻关后补项目"贵州省中低产旱地粮食平衡丰产增效科技工程"[黔科合NZ字(2005)3011]

摘　　要：为了研究在不同玉米/马铃薯分带间套作下的需肥要求和均衡丰产措施,在中低产旱地进行了均衡丰产平衡施肥技术试验。结果表明,中低产条件下玉米/马铃薯间套作,中高海拔的纳雍县施肥比例为N∶P2O5∶K2O=1∶0.53∶0.83,最大利润可达1 336.55元/667m2,肥料综合利用率N为33.52%,P2O5为17.51%,K2O为44.71%;高海拔的威宁县施肥比例为:N∶P2O5∶K2O=1∶0.69∶1.10,最大利润可达1 349.09元/667m2,肥料综合利用率N为26.98%,P2O5为10.58%,K2O为26.80%。Abstract： The intercropping and interplant between maize and potato was studied to investigate the application amounts and cultivation measures for balance high yield in the dry land with middle and lower yield. The results showed that the maximum profit of the dry land with middle and lower yield in Nayong county with middle and high elevation was to 1336.55 yuan/667m2 under the application ratio of N ： P2O ： K2O=1 ： 0.53 ： 0.83 and the comprehensive utilization rate of N, P2O and K20 was 33.52%, 17. 51% and 44.71%, and the maximum profit of the dry land with middle and lower yield in Weining county with high elevation was to 1 349.09 yuan/667m^2 under the application ratio of N ： P2O ： K2O= 1 ： 0.69 ： 1.10 and the comprehensive utilization rate of N, P20 and K2O was 29.68%, 10.58% and 26.80% respectively.

关 键 词：玉米 马铃薯 间套作 平衡施肥 施肥利润 

分 类 号：S147.2[农业科学—肥料学]