气候变化领域集成服务门户(CCPortal): Growth dynamics and productivity of an Eucalyptus grandis plantation under omission of N, P, K Ca and Mg over two crop rotation

CCPortal

DOI	10.1016/j.foreco.2019.05.060
	Growth dynamics and productivity of an Eucalyptus grandis plantation under omission of N, P, K Ca and Mg over two crop rotation
	Rocha J.H.T.; Gonçalves J.L.D.M.; Ferraz A.D.V.; Poiati D.A.; Arthur Junior J.C.; Hubner A.
发表日期	2019
ISSN	0378-1127
起始页码	158
结束页码	168
卷号	447
英文摘要	We conducted an experiment where Eucalyptus grandis was grown for two crop rotations (R1, planted in 2004; R2, clear felled and re-established in 2012) with and without N, P, K, and Lime application. The soil of the experimental site was an Oxisol. Our goal was to identify the magnitude and type of response to N, P, K, and lime applications over two crop rotations. We also aimed to identify the role of weather in tree growth dynamics and in the current responses of trees to fertilizer applications. For this, stem growth of fertilized and unfertilized trees was measured monthly, and wood volume and total biomass were measured every 12 months. In the absence of K, the wood volume decreased drastically (approximately 70%), and this effect was observed until the end of R1 and R2. On the other hand, in the absence of N, P, and Lime, the wood volume decreased from 20% to 50% at 2 years of age. This response decreased with age, disappearing at the end of both rotations for N and was approximately −10% for P and Lime. The trees fertilized with all nutrients were highly responsive to weather variation, showing a basal area increment of approximately 1.0 m2 ha−1 month−1 during the rainy season and values less than 0.2 m2 ha−1 month−1 during the dry season. The absence of K fertilization resulted in a slow but constant growth of approximately 0.2 m2 ha−1 month−1. During months with high water availability, a large current response of trees to fertilizer application was found. During months with low water availability, a low or no response to fertilizer application was found. These results show that a sequence of months with low water availability decreases the accumulated response of trees to fertilizer application, while the opposite is also true. © 2019 Elsevier B.V.
英文关键词	Fertilizer application; Forest nutrition; Growth seasonality; Net primary production; Response type
语种	英语
scopus关键词	Crops; Fertilizers; Forestry; Lime; Fertilizer applications; Forest nutrition; Net primary production; Response type; Seasonality; Rotation; crop rotation; evergreen forest; fertilizer application; forest soil; growing season; growth response; net primary production; nutrient availability; nutrient enrichment; plantation forestry; seasonality; shoot growth; water availability; Application; Farm Crops; Fertilizers; Forestry; Lime; Rotation; Trees; Water; Eucalyptus grandis
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155909
作者单位	Forest Science Department, “Luiz de Queiroz” College of Agriculture, University of São Paulo, Piracicaba, SP, Brazil; Agriculture and Forest Engineering College, FAEF, Garça, SP, Brazil; Forestry Science and Research Institute, IPEF, Piracicaba, SP, Brazil; Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, Brazil
推荐引用方式 GB/T 7714	Rocha J.H.T.,Gonçalves J.L.D.M.,Ferraz A.D.V.,et al. Growth dynamics and productivity of an Eucalyptus grandis plantation under omission of N, P, K Ca and Mg over two crop rotation[J],2019,447.
APA	Rocha J.H.T.,Gonçalves J.L.D.M.,Ferraz A.D.V.,Poiati D.A.,Arthur Junior J.C.,&Hubner A..(2019).Growth dynamics and productivity of an Eucalyptus grandis plantation under omission of N, P, K Ca and Mg over two crop rotation.Forest Ecology and Management,447.
MLA	Rocha J.H.T.,et al."Growth dynamics and productivity of an Eucalyptus grandis plantation under omission of N, P, K Ca and Mg over two crop rotation".Forest Ecology and Management 447(2019).