摘要: 采用两因素裂区试验设计,研究了水氮耦合对烟田土壤水分动态变化的影响。结果表明,在灌水量一定的条件下随氮肥用量增加,烟田土壤含水量、土壤贮水量和水分产值率增大,当氮用量达到67.5kg/hm2时开始下降;灌水与氮用量之间存在显著的互作效应,灌水量在225~450m3/hm2范围内,施氮22.5~45.0kg/hm2既可满足烤烟生长的需要又可增强其对土壤水分的利用。
任 亚,汪耀富,刘占卿,李志敏. Effects of Coupling Water with N Fertilizers on Spatio-temporal Distributing of Soil Moisture and Water Using Efficiency in Tobacco Fields[J]. 中国农学通报, 2005, 21(4): 194-194.
Ren Ya, Wang Yaofu, Liu Zhanqing, Li Zhmin. Effects of Coupling Water with N Fertilizers on Spatio-temporal Distributing of Soil Moisture and Water Using Efficiency in Tobacco Fields[J]. Chinese Agricultural Science Bulletin, 2005, 21(4): 194-194.