引用本文:李成亮,孙强生,杨越超,窦兴霞,张 民.控释肥用量对棉花生长特性和土壤肥力的影响[J].土壤学报,2014,51(2):295-305. DOI:10.11766/trxb201305200245
Li Chengliang,Sun Qiangsheng,Yang Yuechao,Dou Xingxia,Zhang Min.Effects of application rates of controlled release fertilizers on cotton growth and soil fertility[J].Acta Pedologica Sinica,2014,51(2):295-305. DOI:10.11766/trxb201305200245
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控释肥用量对棉花生长特性和土壤肥力的影响
李成亮1, 孙强生1, 杨越超1, 窦兴霞2, 张 民3
1.土肥资源高效利用国家工程实验室,国家缓控释肥工程技术研究中心,山东农业大学资源与环境学院;2.国家化肥产品质量监督检验中心(山东);3.土肥资源高效利用国家工程实验室,国家缓控释肥工程技术研究中心,山东农业大学资源与环境学院
摘要:
以国抗棉GK12号为供试材料,以等养分量复合肥作对照,研究不同控释肥施用量对大田棉花生长和土壤肥力的影响。结果表明,控释肥处理的棉花株高、茎粗、叶面积均较普通复合肥具有优势。控释肥对大田果枝数、桃数影响显著。在施氮量为75 kg hm-2 和150 kg hm-2条件下,控释肥处理的棉花产量较复合肥处理分别增加18.9%和13.6%。在多个棉花生育期,与复合肥处理相比,控释肥处理提高了0~20 cm和20~40 cm土层硝态氮含量,未对土壤的铵态氮含量造成显著影响,土壤中有效磷和速效钾含量与普通复肥处理间未出现显著的差异。
关键词:  控释氮肥  棉花  复合肥  土壤肥力
基金项目:山东省现代农业产业技术体系棉花创新团队(鲁农科技字[2012]26号)项目、“十二五”国家科技支撑计划(2011BAD11B01; 2011BAD11B02)和山东省自主创新成果转化重大专项(2012ZHZX1A0409)资助
Effects of application rates of controlled release fertilizers on cotton growth and soil fertility
Li Chengliang1, Sun Qiangsheng2, Yang Yuechao2, Dou Xingxia3, Zhang Min2
1.College of Resouces and Environment, Shandong Agricultural University;2.National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources;3.National Center for Quality Supervision and Testing of Fertilizers
Abstract:
A field experiment of controlled release fertilizers (CRFs) on cotton was carried out to study effects of application rate of CRFs on cotton (Guokang 12) growth and soil fertility with the application of common compound fertilizers (CCFs) as control for comparison. Results show that CRFs significantly increased plant height, culm diameter, leave area and the numbers of fruit spurs and bolls of the cotton. When N 75 kg hm-2 and N 150 kg hm-2 was applied, yield of the cotton in Treatment CRFs was 18.9% and 13.6% higher than that in CK (CCFs), respectively. Besides, CRFs also significantly increased the content of NO3-N in the soil of the 0~40 cm soil layer, but didn’t affect much the content of NH NO4 -N in the soil. No significant difference was observed in content of available P and K between Treatments CRFs and CCFs.
Key words:  Controlled release fertilizers  Cotton  Common compound fertilizers  Soil fertility