冬小麦微喷带灌溉条件下水肥运移规律研究
|
摘要
[目的]研究微喷带灌溉方式对冬小麦灌水后水肥均匀度和运移的影响。[方法]通过对微喷带灌溉条件下冬小麦不同生长时期,距微喷带垂直距离25、50、75 cm土壤剖面0~20、20~40、40~60 cm土层水分、碱解氮和速效磷含量的测定,研究冬小麦农田土壤水分和养分在土壤中的变化及运移规律。[结果]各土层速效养分运移规律与水分运移规律基本一致;作物生长不同时期,水肥在0~20cm土层中均匀度不同,但20~60 cm土层水分变化趋于一致;碱解氮主要集中在0~60 cm土层,速效磷灌水施肥后主要集中在0~40cm土层。[结论]该研究为制定科学的灌溉施肥制度提供理论依据。
[Objective] To study the effect of micro-spraying hoses irrigation on the evenness and migration of winter wheat after irrigation.[Method]By measuring the content of soil moisture,alkaline hydrolysis nitrogen and available potassium,the vertical distance of 25,50 and 75 cm form micro-spraying hoses and the soil area of 0-20,20-40 and 40-60 cm,in different periods of winter wheat under micro-spraying hose irrigation,the rules of soil moisture change and soil nutrient translation in winter wheat were analyzed.[Result]The rules of soluble nutrient translation and water translation were basically same in each soil layer. Winter wheat growing in different periods,the uniformity of water and fertilization in 0-20 cm soil layer was different,but the change of soil moisture had a similar tendency in 20-60 cm soil layer. The alkaline hydrolysis nitrogen mainly concentrated in 0-60 cm soil layer,available potassium mostly concentrated in 0-40 cm soil layer.[Conclusion]The study provides theoretical basis for the establishment of scientific irrigation fertilization system.
[Objective] To study the effect of micro-spraying hoses irrigation on the evenness and migration of winter wheat after irrigation.[Method]By measuring the content of soil moisture,alkaline hydrolysis nitrogen and available potassium,the vertical distance of 25,50 and 75 cm form micro-spraying hoses and the soil area of 0-20,20-40 and 40-60 cm,in different periods of winter wheat under micro-spraying hose irrigation,the rules of soil moisture change and soil nutrient translation in winter wheat were analyzed.[Result]The rules of soluble nutrient translation and water translation were basically same in each soil layer. Winter wheat growing in different periods,the uniformity of water and fertilization in 0-20 cm soil layer was different,but the change of soil moisture had a similar tendency in 20-60 cm soil layer. The alkaline hydrolysis nitrogen mainly concentrated in 0-60 cm soil layer,available potassium mostly concentrated in 0-40 cm soil layer.[Conclusion]The study provides theoretical basis for the establishment of scientific irrigation fertilization system.
引文
[1]张其鲁,姜官恒,魏秀华,等.微喷技术在小麦生产上的应用研究[J].安徽农学通报,2012,18(9):190-191,178.
[2]贾秀领,马瑞昆,张全国,等.近20年冬小麦供水量与产量关系变化分析[J].华北农学报,2009,24(S1):214-217.
[3]张喜英.提高农田水分利用效率的调控机制[J].中国生态农业学报,2013,21(1):80-87.
[4]郭进考,史占良,何明琦,等.发展节水小麦缓解北方水资环短缺:以河北省冬小麦为例[J].中国生态农业报,2010,18(4):876-879.
[5]满建国,王东,于振文,等.不同带长微喷带灌溉对土壤水分布与冬小麦耗水特性及产量的影响[J].应用生态学报,2013,24(8):2186-2196.
[6]李贵宝.不同土壤施用钾肥对小麦生长和土壤钾含量的影响[J].土壤肥料,1996(1):34-37.
[7]张西群,檀海斌,梁建青,等.低成本小麦微喷灌溉技术研究与效果试验[J].河北农业科学,2014,18(6):45-51.
[8]程裕伟,马富裕,王光全,等.不同水分处理对滴灌春小麦水分利用效率及产量的影响[J].新疆农业大学学报,2013,36(4):322-328.
[9]史晓楠,王全九,黄国琴.施肥方式对土壤水肥分布特征影响[J].水土保持学报,2010,24(1):191-196.
[10]赵靓,侯振安,李水仙,等.磷肥用量对土壤速效磷及玉米产量和养分吸收的影响[J].玉米科学,2014,22(2):123-128.
[2]贾秀领,马瑞昆,张全国,等.近20年冬小麦供水量与产量关系变化分析[J].华北农学报,2009,24(S1):214-217.
[3]张喜英.提高农田水分利用效率的调控机制[J].中国生态农业学报,2013,21(1):80-87.
[4]郭进考,史占良,何明琦,等.发展节水小麦缓解北方水资环短缺:以河北省冬小麦为例[J].中国生态农业报,2010,18(4):876-879.
[5]满建国,王东,于振文,等.不同带长微喷带灌溉对土壤水分布与冬小麦耗水特性及产量的影响[J].应用生态学报,2013,24(8):2186-2196.
[6]李贵宝.不同土壤施用钾肥对小麦生长和土壤钾含量的影响[J].土壤肥料,1996(1):34-37.
[7]张西群,檀海斌,梁建青,等.低成本小麦微喷灌溉技术研究与效果试验[J].河北农业科学,2014,18(6):45-51.
[8]程裕伟,马富裕,王光全,等.不同水分处理对滴灌春小麦水分利用效率及产量的影响[J].新疆农业大学学报,2013,36(4):322-328.
[9]史晓楠,王全九,黄国琴.施肥方式对土壤水肥分布特征影响[J].水土保持学报,2010,24(1):191-196.
[10]赵靓,侯振安,李水仙,等.磷肥用量对土壤速效磷及玉米产量和养分吸收的影响[J].玉米科学,2014,22(2):123-128.