不同控释肥养分释放特征及对番茄根系生长、产量与品质的影响  

Nutrient Release Characteristics of Different Controlled-release Fertilizers and Their Effects on Root Growth, Yield and Quality of Tomato

作　　者：孙哲[1] 郑建利[1] 朱国梁[1] 刘中良[1] 田昌庚 高俊杰[1] 

机构地区：[1]泰安市农业科学研究院,山东泰安271000

出　　处：《中国农学通报》2015年第28期65-70,共6页Chinese Agricultural Science Bulletin

基　　金：山东省重大应用技术创新课题"设施蔬菜高效栽培的根区调控技术研究";泰安市科技发展重大专项计划"设施蔬菜安全高效栽培技术研究与示范"(201340629)

摘　　要：为了探讨不同释放期控释肥在设施蔬菜上的应用效果,通过尼龙网袋田间试验模拟研究不同控释肥的养分释放规律,并在番茄上试验研究不同释放期控释肥对番茄根系生长、产量及品质的影响,同时进行经济效益分析。结果表明：控释尿素（CRU）、控释肥（CRF）能够较长时间维持番茄根系活力水平,从而促进番茄增产和品质改善。在氮、磷、钾施用量相同的条件下,CRU、CRF较普通复合肥（CCF）番茄产量增加7.8%-15.7%;除控释肥CRF-A外,净收益增加2287.5-10677.0元/hm2;不同释放期控释肥料对番茄品质的影响不同,CRU、CRF-B、CRF-C的番茄Vc含量均高于CCF处理,各施肥处理番茄糖酸比均低于对照。说明控释肥提高番茄产量和品质的原因是促进番茄采收期根系生长及较高的活力水平。In order to explore the effect of different controlled-release fertilizers on vegetable in greenhouse,the author carried out an experiment of nylon net bag to study nutrient release characteristics of controlled-release fertilizers with different release durations, and their effects on tomato＇root growth, nutrient useefficiency and economic returns in field trials. The results showed that controlled-release fertilizers CRU andCRF could maintain root activity level for a relatively long time, which could promote tomato yield and quality.Under the same N, P, K application rates, compared with common compound fertilizers, CRU and CRFincreased tomato yield by 7.8%-15.7%, and net earning by 2287.5-10677.0 yuan/hm2. The effects of differentcontrolled-release fertilizers with different release durations on tomato quality were different. Compared withcommon compound fertilizers, Vc content of tomato applied with CRU and CRF-B,CRF-C all increased, andsugar acid ratios of the treatments were lower than CK. Controlled-release fertilizers could promote root growthand activity level during the picking time of tomato, as well as the yield and quality.

关 键 词：番茄 控释肥 养分释放特征 根系生长 产量 品质 

分 类 号：S641.2[农业科学—蔬菜学]