Research on the Rule of Absorbing Fertilizer of Dictamnus dasycarpus(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Research on the Rule of Absorbing Fertilizer of Dictamnus dasycarpus

Author(s):: LIU Lijuan1; ZHANG Baoguo2; WANG Hongwei2; (1.School of Life Sciences，Tonghua Normal University，Tonghua，Jilin 134002;2.Horticultural Institute of Tonghua City，Tonghua，Jilin 134001)

Keywords:: Dictamnus dasycarpus; nitrogen; phosphorus; potassium; rule of absorbing feitilezer

Abstract:: The 3-year-old artificial cultivated Dictamnus dasycarpus was used as test material，the content of nitrogen，phosphorus and potassium of the whole Dictamnus dasycarpus in different growth periods were measured by conventional method,its change law was discussed to investigate its nutrient absorption characteristics.The results showed that the absorption of nitrogen，phosphorus and potassium in growing season in Tonghua Region was N∶P2O5∶K2O=7.8∶1∶5.8.Early May to early July，uptake of nitrogen，phosphorus and potassium by Dictamnus dasycarpus showed a rising trend，the absorption of potassium reached peak in July sixth throughout the year，nitrogen was in July twenty-first，phosphorus was in September forth and then decreased.The absorption of three elements were higher in withering period than germination period.It was suggested to topdressing in spring land preparation and early July.

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Last Update: 2016-04-08