摘要
叶片缺铁黄化是制约金丝小枣优质高产的重要生产问题。为改善金丝小枣果实品质及产量,采用树干注射方式在金丝小枣生育期补充树体铁素营养,以期研究注射铁肥对金丝小枣树体生长指标、产量及品质的影响。试验设置注射不含铁基础营养液、含0.2、0.3和0.4 g/L Fe-EDTA基础营养液4个处理。结果表明,树干注射不同浓度铁均能促进金丝小枣的生长,0.2 g/L Fe-EDTA处理显著促进了果实的生长发育,使横径、纵径、单果重、可溶性糖含量相对基液对照分别提高了6.6%、4.2%、6.2%和7.9%,0.3 g/L Fe-EDTA处理显著提高了一级枣果比例。因此,采用注射方式对金丝小枣补施铁肥是金丝小枣高产、优质、高效率生产的有效技术途径。
Leaf yellowing caused by iron （Fe） deficiency is one of the most important limiting factors for high yield and highquality production of Jujube. In order to provide a theoretical basis for increasing yield and improving quality of golden threadjujube production in Laoling. Fe fertilization experiment was conducted to study the impact of injection different concentrationsof Fe-EDTA solution in tree trunk on nutrient content. fruit development. yield and quality of golden silk thread jujube. Fourtreatments were set up. included non-ferrous basic nutrient solution. 0. 2 g / L Fe-EDTA basic nutrient solution. 0. 3 g / L Fe-EDTA basic nutrient solution and 0. 4 g / L Fe-EDTA basic nutrient solution. The preliminary results showed that the trunk in-jection of different concentration of Fe-EDTA solution improved the growth and fruit development of jujube. The 0. 2 g / L Fe-EDTA basic nutrient solution treatment significantly promoted the growth and development of fruit. and increased the ratio oftransverse diameter. longitudinal diameter. single fruit weight and soluble sugar content by 6. 6%. 4. 2%. 6. 2% and 7. 9%respectively. The 0. 3 g / L Fe-EDTA basic nutrient solution treatment significantly increased the proportion of high quality ju-jub. Thus. trunk injection of Fe fertilizer was a useful ways for high yield and high quality golden silk jujube production.
作者
牛晓琳
梁军
马文凤
张宏彦
NIU Xiao-lin1,2, LIANG Jun3, MA Wen-feng3, ZHANG Hong-yan1,2,(1. College of Resources and Environment, ChinaAgricultural University, Beijing 100193; 2. Quzhou Experimental Station, China Agricultural University, Quzhou Hebei057250; 3. Agricultural Bureau of Shandong Laoling, Laoling 25360)
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2018年第3期155-160,共6页
Soil and Fertilizer Sciences in China
基金
"十三五"国家重点研发计划项目(2016YFD0200401)
关键词
金丝小枣
铁肥
树干注射
产量
品质
Golden silk jujube
Fe fertilizer
trunk injection
yield
quality
