摘要
以2年生"瑞蟠21/毛桃"为试材,通过调控袋控复混缓释肥钼元素含量(0 g/袋:普通袋控复混缓释肥;0.1 g/袋:含钼袋控复混缓释肥),探究含钼袋控复混缓释肥对盆栽桃树土壤酶活性、养分吸收及植株生长的影响。结果表明,与普通袋控复混缓释肥相比,含钼袋控复混缓释肥处理显著提高土壤中蔗糖酶、脲酶、磷酸酶和过氧化氢酶活性,施肥后30,60天分别提高6.99%,7.61%,12.27%,22.86%和6.31%,11.58%,9.05%,32.14%,且差异显著;含钼袋控复混缓释肥处理提高土壤中全钼含量,增加侧根数量,与普通袋控复混缓释肥相比,根系活力、总根长、总表面积和总体积分别提高7.88%,6.12%,3.95%和9.19%;根冠比提高6.92%,干物质总量提高9.99%。与普通袋控复混缓释肥处理相比,含钼袋控复混缓释肥处理植株叶、侧枝和根部全钼、全氮和全磷含量显著提高,但全钾含量无显著差异,并提高叶、侧枝和根部钙、镁、锌和硼等元素含量;显著提高桃树叶片叶绿素含量和净光合速率。研究表明,含钼袋控复混缓释肥可提高土壤酶活性和桃幼树根系活力,增加侧根数量,提高根冠比,并提高植株叶片净光合效率,促进桃树对氮、磷、硼和锌等元素的吸收,从而促进桃树植株的形态建成。
Taking the two year old “Rui pan 21/peaches” as test materials,the effects of molybdenum bag-controlled release fertilizer on soil enzyme activity,nutrient absorption and plant growth of potted peach tree were investigated by regulating the content of molybdenum in bag-controlled release fertilizer (0 g/bag: ordinary bag-controlled release fertilizer,0.1 g/bag: molybdenum containing bag-controlled release fertilizer).The results showed that compared with ordinary bag-controlled release fertilizer,the activity of soil sucrose enzyme,urease,phosphatase and catalase in the soil treated by molybdenum containing bag-controlled release fertilizer increased by 6.99%,7.61%,12.27% and 22.86% after 30 days of fertilization,respectively,and increased by 6.31%,11.58%,9.05% and 32.41% after 60 days after fertilization,respectively,and the differences were significant.The molybdenum containing bag-controlled release fertilizer treatment increased the content of molybdenum in the soil and the number of lateral roots,the root activity,total root length,total surface area and total volume increased by 7.88%,6.12%,3.90% and 9.19%,respectively.The root shoot ratio increased by 6.92%,and the total dry matter increased by 9.99% compared with ordinary bag-controlled release fertilizer treatment.Compared with ordinary bag-controlled release fertilizer,the content of molybdenum ion,total nitrogen and total phosphorus in the leave,lateral branch and roots of the plant treated with molybdenum bag-controlled release fertilizer increased significantly,while the total potassium content in the plant increased slightly,and the difference was not significant.The content of calcium,magnesium,zinc and boron in leave,branches and roots also increased.The chlorophyll content and net photosynthetic rate of peach trees treated with molybdenum containing bag-controlled release fertilizer significantly increased.The study showed that,molybdenum containing bag-controlled release fertilizer could increase soil enzyme activity and root activity of peach saplings,and increase number of lateral roots,root shoot ratio and net photosynthetic efficiency of plant leaves,promote the absorption of nitrogen and phosphorus,thus promoting peach tree plant morphological construction.
作者
郜怀峰
肖元松
彭福田
张亚飞
王国栋
孙希武
贺月
GAO Huaifeng;XIAO Yuansong;PENG Futian;ZHANG Yafei;WANG Guodong;SUN Xiwu;HE Yue(State Key Laboratory of Crop Biology,College of Horticulture Science and Engineering,Shandong Agricultural University,Tai’an,Shandong 271018)
出处
《水土保持学报》
CSCD
北大核心
2019年第2期220-226,共7页
Journal of Soil and Water Conservation
基金
国家现代农业产业技术体系建设专项(CARS-30-2-02)
山东省自然科学基金项目(ZR2017BC017)
山东省"双一流"建设奖补资金项目(SYL2017YSTD10)
关键词
桃
钼
袋控缓释肥
根系
养分吸收
peach
molybdenum
bag-controlled release fertilizer
root system
nutrient absorption
