Báo cáo lâm nghiệp: "Field effect of P fertilization on N2 fixation rate of Ulex europaeus" doc

... that the fine root ratio is stable at least in the first growing period of new plantation and the best growing plants have about the same fine root ratio as the poorly growing ones. Even the regression ... explaining 92% of the relationship. An adequate proportion of fine roots (thinner than 2 mm) in the root system is another important parameter of p...

Ngày tải lên: 07/08/2014, 03:22

... Program of China No. 201104070. Short Communication Differences in the structure, species composition and diversity of primary and harvested forests on Changbai Mountain, Northeast China DONGKAI ... species would not become dominant in the forest. e results of the multi-response per- mutation procedures (MRPP) further confirmed the dissimilari...

Ngày tải lên: 07/08/2014, 03:22

... were included in the clusters together with trees from unthinned control plots 1c. Variability of growth response of pine stands to climate characteristic in relation to thinning Variability of ... thinned stands (variant 4t) showed the higher variability of diameter growth response in comparison with those from control stands. DISCUSSION  e respon...

Ngày tải lên: 07/08/2014, 10:21

... distribution of the Japanese pine sawyer Monochamus alternatus (Coleoptera: Cerambycidae) in China Rui-Yan M a, b , Shu-Guang H a ,Wei-NaK b , Jiang-Hua S a ,LeK a * a State Key Laboratory of Integrated ... saltuarirs in northeastern China, M. galloprovinialis in the whole of Europe except for Scandinavia and Siberia, and M. scutellatus...

Ngày tải lên: 07/08/2014, 16:20

... approach has proved very interest- ing and useful in the case of complex decline syndromes where multiple abiotic (including drought) and biotic (pathogens and insects) factors are involved [80, 85,106, ... PROCESSES AND MECHANISMS Theoretically, three main types of drought- disease interac- tion can be expected: – A direct effect of drought on pathogens; – Indirect effe...

Ngày tải lên: 07/08/2014, 16:20

... forest trees and stands under severe drought: a review of ecophysiological responses, adaptation processes and long-term consequences Nathalie B ´  a * ,RolandH  b , André G a ,ErwinD a a UMR ... daily data) and of relative extractable soil water (REW) in: (a) beech stands (Soroe, Hesse and Hainich), (b) coniferous stands (Thara...

Ngày tải lên: 07/08/2014, 16:20

... online at: c  INRA, EDP Sciences, 2007 www.afs-journal.org DOI: 10.1051/forest:2007024 Original article The effects of thinning treatments on density, MOE, MOR and maximum crushing strength of ... low. In addition, the seed source of samples taken from two plantations areas was Thinning effects on Pinus brutia wood properties 475 [33] Larson P.R., Wood fo...

Ngày tải lên: 07/08/2014, 16:21

... / P fertilization / Pinus pinaster Résumé – Effet in situ de la fertilisation en phosphore sur le taux de fixation de l’azote atmosphérique d Ulex europaeus. Le taux de fixation de l’azote atmosphérique ... method) to be properly ap- plied were not met in the fertilized site. It was thus impossible to address the question of the field P effect on fixation rate, even thoug...

Ngày tải lên: 07/08/2014, 16:21

... 10.1051/forest:2007071 Original article Nursery fertilisation affects the frost-tolerance and plant quality of Eucalyptus globulus Labill. cuttings Manuel Fern ´ andez a * , Celia M arcos a ,RaúlTapias a , ... how nursery fertilisation affects the field performance of plants. This led us to study the effect of three mineral nutrients (N, P and K) on both plant...

Ngày tải lên: 07/08/2014, 16:21

... pine and other pine species, and between the trunk xylem and twig xylem and phloem of Yunnan pines. Unlike Pinus sylvestris L., a major host of T. piniperda in Europe, the trunk xylem of P. yunnanensis ... attractiveness of the YB lures may be in the late spring-early summer, when the beetles are dispersing to the shoots. Our results and the profile...

Ngày tải lên: 08/08/2014, 00:21

... 10.1051/forest:2006001 Original article Characterizing fertility targets and multi-element interactions in nursery culture of Quercus rubra seedlings K. Francis SALIFU, Douglass F. JACOBS* Hardwood Tree Improvement and ... seedling field performance. 3.3. Multi-element interactions Vector diagnosis is used to interpret and improve under- standing of multi-el...

Ngày tải lên: 08/08/2014, 00:22

... 507514 â INRA, EDP Sciences, 2004 DOI: 10.1051/forest:2004045 Original article Field performance of Pinus pinea and P. halepensis seedlings inoculated with Rhizopogon spp. and outplanted in formerly ... inoculation * Corresponding author: xavier.parlade@irta.es Field performance of Pinus inoculated with Rhizopogon 511 3.3. Pinus halepensis seed...

Ngày tải lên: 08/08/2014, 01:22

... and 800 μmol m -2 s -1 . Stomatal conductance and Original article Physiological, morphological and growth responses to rhizosphere hypoxia by seedlings of North American ... stomatal and photosynthetic responses of three bottomland tree species. For Sci 32, 914- 923 Ponnamperuma FN (1984) Effects of flooding on soils. In: Floo...

Ngày tải lên: 08/08/2014, 18:21

... 99.6 Mg ha-1 ; San Original article Biomass, litterfall and nutrient content in Castanea sativa coppice stands of southern Europe S Leonardi 1 I Santa Regina M Rapp 4 HA Gallego 3 M ... VII. This indicates again that there was much higher calcium content in the litterfall in the Etna Castanea sativa stands as compared to the San Ma...

Ngày tải lên: 08/08/2014, 18:21

... optimization of carbon diox- ide uptake with respect to water loss. A usf. J. Plant Physiol. 7, 3i 5-327 Field studies of leaf gas exchanges in oil palm tree (Elaeis guineensis ... made on the 8th or 9th leaf of 8 different palm trees (last leaf fully opened is numbered 1 ). Light was the only limiting factor. Relative error of...

Ngày tải lên: 09/08/2014, 04:20