摘要
【目的】研究不同的施肥方式对枣园土壤养分和根系吸收利用的影响,为枣高效施肥技术提供理论参考。【方法】采用沟施、穴施、辐射状施肥、撒施4种不同施肥方式,定期测定土壤中有机质、氮、磷、钾含量;在果实膨大期和成熟期测定叶片中全氮、全磷、全钾的含量,分析不同施肥方式对枣园土壤养分及吸收利用变化的影响。【结果】4种施肥方式均可促进土壤肥力的提升,对0~20 cm土层影响更为明显,以辐射状施肥最为显著。整个生长周期内,辐射状施肥对有机质含量影响最为显著,穴施次之。沟施、穴施和辐射状施肥方式能显著提高土壤全氮、碱解氮含量,以辐射状施肥最为显著,分别较CK增长0.18 g/kg、12.66 mg/kg。沟施、穴施和辐射状施肥对土壤速效磷、速效钾含量影响显著,其中穴施对速效磷影响最为显著,较CK增长26.38mg/kg,辐射状施肥对速效钾影响最为显著,较CK增长81 mg/kg。4种施肥方式对叶片磷含量均有显著性影响,其中辐射状施肥对叶片氮、磷、钾含量变化的影响最为显著。【结论】采用辐射状施肥方式,能有效提高土壤养分含量,明显提高了叶片对养分的吸收效果。
【Objective】This paper aims to explore the effects of different methods of fertilization on soil nutrient absorption of jujube and root in order to provide a theoretical reference for the efficient fertilization technology of jujube.【Method】Four different methods of fertilization(furrow fertilization,hole fertilization,radial fertilization and broadcast fertilization)were used.The content of organic matter,nitrogen,phosphorus and potassium in soil were determined regularly,the content of total nitrogen,total phosphorus and total potassium were measured during fruit enlargement period and mature period to analyze the effects of different fertilization on absorption and utilization change of soil nutrients in jujube orchard.【Result】Different methods of fertilization could promote the improvement of soil fertility,the influence on the 0-20 cm soil layer was more obvious,and radial fertilization was the most significant.The effect of radial fertilization on the content of organic matter was the most significant,and the furrow fertilization was the second during the whole growth cycle of red jujube.Furrow fertilization,hole fertilization and radial fertilization could significantly improve the soil total nitrogen content,the radial fertilization was the most significant,compared to CK,it increased by 0.18 g/kg and 12.66 mg/kg respectively.Furrow fertilization,hole fertilization and radial hole fertilization had significant effects on soil available phosphorus and available potassium content,the influence of hole fertilization on soil available phosphorus was the most significant,compared with CK,it increased by 26.38 mg/kg.The effect of radial fertilization on quick effect potassium was the most significant;it increased by 81 mg/kg.The four methods of fertilization had significant effects on the content of phosphorus in leaves.Radial fertilization and hole fertilization had significant effects on contents of nitrogen and potassium in leaves,the effects of radial fertilization on the changes of nitrogen,phos
作者
付倩雯
宋锋惠
史彦江
吴正保
马合木提.阿不来提
FU Qian-wen;SONG Feng-hui;SHI Yang-jian;WU Zheng-bao;Mahemuti Abulaiti(College of Forestry&Horticulture,Xinjiang Agricultural University,Urumqi 830052,China;Xinjiang Academy of Forestry Sciences,Urumqi 830000,China)
出处
《新疆农业科学》
CAS
CSCD
北大核心
2018年第3期448-456,共9页
Xinjiang Agricultural Sciences
基金
2016年中央财政林业科技推广项目(新【2016】TG09)~~
关键词
枣
施肥
土壤养分
吸收
jujube
fertilization
soil nutrient
absorption
