[1]朱小楼,曹嵘,朱旻华,等.氮素指数施肥对落羽杉苗木生长及养分积累的影响[J].浙江林业科技,2018,38(06):59-64.[doi:10.3969/j.issn.1001-3776.2018.06.010]
　ZHU Xiao-lou,CAO Rong,ZHU Min-hua,et al.Effect of NExponentialFertilization on Growth and Nutrient Accumulation Of TaxodiumdistichumSeedlings[J].Journal of Zhejiang Forestry Science and Technology,2018,38(06):59-64.[doi:10.3969/j.issn.1001-3776.2018.06.010]
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氮素指数施肥对落羽杉苗木生长及养分积累的影响()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
38
期数:
2018年06期
页码:
59-64
栏目:
出版日期:
2018-12-20

文章信息/Info

Title:
Effect of NExponentialFertilization on Growth and Nutrient Accumulation Of TaxodiumdistichumSeedlings
文章编号:
1001-3776（2018）06-0059-06
作者:
朱小楼1; 曹嵘1; 朱旻华2; 柳结苗2; 吴家森2
1. 浙江省桐乡市林业工作站，浙江桐乡314500；2. 浙江农林大学，浙江省森林生态系统碳循环与固碳减排重点实验室，浙江杭州 311300
Author(s):
ZHU Xiao-lou1; CAO Rong1; ZHU Min-hua2; LIUJie-miao2; WU Jia-sen2
1.Tongxiang Forestry Station of Zhejiang, Tongxiang 314500,China; 2. Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration ofZhejiang Province, Zhejiang A ＆ F University, Hangzhou 311300, China
关键词:
落羽杉; 生物量; 氮; 磷; 钾; 指数施肥
Keywords:
Taxodiumdistichum; biomass; nitrogen; potassium; phosphorus; exponential fertilization
分类号:
S723.7
DOI:
10.3969/j.issn.1001-3776.2018.06.010
文献标志码:
A
摘要:
于2016年4月1日开始，在浙江省桐乡市以1年生落羽杉Taxodiumdistichum苗为材料，采用温室盆栽方法，设常规施肥（CF）和指数施肥（EF1，EF2，EF3，EF4）5种处理，共施氮5次，纯氮总用量分别为5.0，1.0，3.0，5.0，8.0 g?株-1。生长结束后，利用全收获法测定落羽杉的株高、地径、生物量及养分含量。结果表明，EF3的苗高和EF2的地径显著高于CF（P<0.05），与CF相比，EF2地上部、地下部和总生物量显著增加了42.9%，44.3%和43.5%（P<0.05）；与CF比较，EF地下部氮积累量显著增加了37.5%~86.6%，EF1，EF2，EF3地上部氮和钾积累量显著高于CF（P<0.05）；EF磷积累量和地下部钾积累量均显著高于CF（P<0.05）。氮素指数施肥显著提高了落羽杉幼苗生长，施氮量为3.0 g?株-1的指数施肥是落羽杉苗木温室培育的适宜方法。探讨氮素指数施肥对落羽杉幼苗生长及养分积累的影响，为落羽杉苗木培育提供基础。
Abstract:
On April 1, 2016, 1-year Taxodiumdistichumseedlingswere potted at greenhouse in Tongxiang, Zhejiang province.They were treated by conventional fertilization (CF, 5.0 g/seeding), Nexponential fertilization of EF1 (1.0 g), EF2 (3.0g), EF3 (5.0 g) and EF4 (8.0 g)with randomized blocks design. Nitrogen application was designed 5 times with interval of 30 days. On October 20 of the current year, seedling height, ground diameter, biomass and nutrient content was determined by whole harvest method. The result demonstrated that seedlings with treatment ofEF3 had evident higher height than that of CF and that of ground diameter withEF2 was the same. Above-ground,underground and total biomass of seedling with treatment of EF2increased by 42.9% ,44.3% and 43.5 from（P<0.05）compared with that ofCF. N accumulation of underground part of seedlings treated by EF increased by 37.5%-86.6%, compared with that by CF. N and Kaccumulationof above-ground parts of seedlings treated by EF1, EF2 and EF3wasevidently higher than that by CF (P<0.05). P accumulation in seedlings treated by EF and K accumulation in underground part of thattreated by EFwashigher than that by CF (P<0.05).The experiment resulted that exponential nitrogen had significant effects on the growth of T.distichumseedlings, especially the treatment of EF2.

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备注/Memo

备注/Memo:
收稿日期：2018-05-17；修回日期：2018-09-22 基金项目：浙江省桐乡市农经局项目（H20160159） 作者简介：朱小楼，工程师，从事种苗培育与林业技术推广工作；E-mail：157372156@qq.com。通信作者：吴家森，教授级高级工程师，从事森林土壤与环境研究；E-mail：jswu@zafu.edu.cn。
更新日期/Last Update: 2018-12-20