Báo cáo lâm nghiệp:"Interaction of initial seedling diameter, fertilization and weed control on Douglas-fir growth over the first four years after planting" ppsx
Báo cáo lâm nghiệp:"Interaction of initial seedling diameter, fertilization and weed control on Douglas-fir growth over the first four years after planting" ppsx
... articleInteraction of initial seedling diameter, fertilization and weed control on Douglas-fir growth over the first four years after plantingRobin ROSE*, J. Scott KETCHUM Vegetation Management ... positiveresponses to fertilization in the presence of weed control. Their results closely mirrored those of White and Newton[44], with a negative response to fertilization in the absence of weed control. ... sites.2.3. Vegetation control treatmentsTwo vegetation control treatments were used: control of all vege-tation for two years and control of all vegetation for three years. Veg-etation control was accomplished...
- 11
- 259
- 0
Báo cáo lâm nghiệp: "Effect of initial height of seedlings on the growth of planting material of Norway spruce (Picea abies [L.] Karst.) in mountain conditions" ppsx
... model plantation in the Krkonoše Mts. agree with the finding that the slow growth of a part of the population of spruce seedlings is the most marked in the first years after sowing and later it ... population of Norway spruce after their planting in extreme mountain conditions compared to the develop-ment of seedlings of standard and large dimensions.MATERIAL AND METHODSSeeds used for the ... 1995).They also confirm an assumption that in the process of adaptation to adverse environmental conditions at higher altitudes spruce populations gain their resistance to the account of growth...
- 7
- 343
- 0
Báo cáo lâm nghiệp: "Variability of initial growth, water-use efficiency and carbon isotope discrimination in seedlings of Faidherbia albida (Del.) A. Chev., a multipurpose tree of semi-arid Africa. Provenance and drought effect" doc
... the growth of the rootingsystem of this phreatophytic species is the first component of the success of its estab-lishment. During the juvenile stage, the water economy, ... oper-ated on provenances and on isolated geno-types. Ranking for W was consistent with initial growth, and our results matched the second condition listed in the Introduc-tion ... of five control pots (during the same period of the following year, at the sameplace, within a similar F. albida trial). The total6-month evaporation of the control pots...
- 20
- 303
- 0
Báo cáo lâm nghiệp: "Productivity of Pinus elliottii, P. caribaea and their F1 and F2 hybrids to 15 years in Queensland, Australia" ppsx
... at 10 and 15 years of age. As the mean diameter and height at 10 years of age, was within the range of the trees sampled to derive the volume equations, ap-plication of the equations to the earlier ... comparison of the four taxa that have been most widely planted in southeast Queens-land during the past 20 years; allowing investigation of differ-ences in volume production of the four taxa to 15 years ... Plantations Queensland) and Chris Brack (Australian Na-tional University) for advice and guidance on the application of the centroid method in this study, and the Queensland Department of Pri-mary...
- 8
- 400
- 0
Báo cáo lâm nghiệp: "Detection of cavitation events upon freezing and of water in stems using ultrasound technique" pdf
... heating effects of the transducer on the sensor and the sample, we used the sensorintermittently, switching it on only for 2 min out of 10. The acoustic emissions were countedusing ... result of the creation of new tech-niques based on the detection of sounds(Milburn, 1973) or, more reliably, ultra-sounds (Tyree and Dixon, 1983) emittedby the plant ... should take placeupon the freezing and the thawing of water in vessels. In fact, the existence of cavitative events as a consequence of cycles of freezing and thawing has...
- 4
- 229
- 0
Báo cáo lâm nghiệp: "Dynamics of light interception, leaf area and biomass production in the establishment year in Populus clones" pot
... integrators. The location of the line sensor was randomly changed every weekamong permanent growth plots of the 4 clones.ResultsLight interception of the clones increasedthroughout ... deltoidt1S clone 111-5. The linearregression of cumulative biomass on cumulative intercepted radiation of the 4clones had an R 2 of 0.87, with a conver-sion efficiency of 0.55 ... 50% of the totalleaf area consisted of leaves on branches,whereas in the other 2 clones, 44-136 and 111-5, this proportion was only 15% (Fig. 2).In contrast to the...
- 4
- 208
- 0
Báo cáo lâm nghiệp:"Influence of cotyledon removal on early seedling growth in Quercus robur L." doc
... to the consumption of seedreserves. Thus, the kinetic of changes in dry weight and in nitrogencontent of both the cotyledons and the growing plant, was establishedprior to the analysis of the ... replications in each experiment, stage of growth and experimental conditions.Factorial experiment Harvest atdifferent stages of growth Full light ShadeStage of growth Control Cotyledon removal Control ... the coty-ledons to the seedling. Secondly, we analyzed the extent of the functional dependence between seedling growth and seedreserves by artificial suppression of cotyledon and by shadingat...
- 5
- 301
- 0
Báo cáo lâm nghiệp: "Effects of seedling density on the growth of Corsican pine (Pinus nigra var. maritima Melv.), Scots pine (Pinus sylvestris L.) and Douglas-fir (Pseudotsuga menziesii Franco) in containers" ppt
... and the Northern Research Stationfor raising the container seedlings, and the staffrooting volume held constant, has a stronginfluence on the growth and development of ... survival and growth of theseseedlings can be achieved after outplanting on suitable sites given adequate groundpreparation and proper weed control and protection. There may ... reports on the direct effects of seedling density on growth in the absence of confounding effects of cell volume. Comparisons of seedling growth in different sized containers...
- 17
- 318
- 0
Báo cáo lâm nghiệp: "Allocation of dry matter in Eucalyptus in response to nitrogen supply grandis seedling" ppsx
... effects of environmental variablesor silvicultural treatments on growth and allocation of dry matter by analysis of shoot/root ratio (mass of top/mass of root)but use of this ... relationship was not influencedby seedling [N]. On the other hand, allo-metric relations between W and Wr weredependent upon seedling [N], whichinfluenced regression intercept ... periods of 40-60 din 4 growth units. Seedlings from each growth unit were harvested on 4 occasions at intervals of 7-14 d depending upon growth rate.ResultsRg and [N]...
- 4
- 254
- 0
Báo cáo lâm nghiệp: "Composition of psocid taxocenoses (Insecta: Psocoptera) in Fageti-Piceeta s. lat. and Piceeta s. lat. forests in the Western Carpathian Mts" pps
... AVZ together with fields of the 8th and 9th AVZ. Only single habitats of the 7th AVZ occur in the field of the 4th and 5th AVZ.From the view of hydricity (q-axis), habitats of the 7th ... habitats of the 8th AVZ lie along the x-axis on the left side. is dotted field is not situated along the x-axis in the same way as the field of the 7th AVZ because the field of the 8th ... “moist”. A field of habitats of the 7th AVZ is situ-ated along the x-axis, i.e. along altitudinal vegeta-tion zones. e difference is then in the hydricity of habitats of the Oravské and Moravskoslezské...
- 8
- 666
- 0
Từ khóa: báo cáo lâm nghiệpcách làm báo cáo tốt nghiệphướng dẫn làm báo cáo tốt nghiệp khoa kế toáncách làm bìa báo cáo tốt nghiệpcách làm slide báo cáo tốt nghiệpcách làm báo cáo tốt nghiệp chuyên ngành kế toáncách làm powerpoint báo cáo tốt nghiệptài liệu làm báo cáo tốt nghiệpcách làm bài báo cáo tốt nghiệphướng dẫn làm báo cáo tốt nghiệpbáo cáo tốt nghiệp ngành lâm nghiệphướng dẫn làm báo cáo tốt nghiệp trường lâm nghiệpmẫu bìa làm báo cáo tốt nghiệphướng dẫn làm slide báo cáo tốt nghiệpbáo cáo tốt nghiệp dược lâm sàngNghiên cứu tổ hợp chất chỉ điểm sinh học vWF, VCAM 1, MCP 1, d dimer trong chẩn đoán và tiên lượng nhồi máu não cấpMột số giải pháp nâng cao chất lượng streaming thích ứng video trên nền giao thức HTTPGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitPhát triển mạng lưới kinh doanh nước sạch tại công ty TNHH một thành viên kinh doanh nước sạch quảng ninhNghiên cứu, xây dựng phần mềm smartscan và ứng dụng trong bảo vệ mạng máy tính chuyên dùngNghiên cứu về mô hình thống kê học sâu và ứng dụng trong nhận dạng chữ viết tay hạn chếNghiên cứu khả năng đo năng lượng điện bằng hệ thu thập dữ liệu 16 kênh DEWE 5000Tìm hiểu công cụ đánh giá hệ thống đảm bảo an toàn hệ thống thông tinSở hữu ruộng đất và kinh tế nông nghiệp châu ôn (lạng sơn) nửa đầu thế kỷ XIXKiểm sát việc giải quyết tố giác, tin báo về tội phạm và kiến nghị khởi tố theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn tỉnh Bình Định (Luận văn thạc sĩ)Quản lý nợ xấu tại Agribank chi nhánh huyện Phù Yên, tỉnh Sơn La (Luận văn thạc sĩ)BT Tieng anh 6 UNIT 2chuong 1 tong quan quan tri rui roNguyên tắc phân hóa trách nhiệm hình sự đối với người dưới 18 tuổi phạm tội trong pháp luật hình sự Việt Nam (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtChiến lược marketing tại ngân hàng Agribank chi nhánh Sài Gòn từ 2013-2015HIỆU QUẢ CỦA MÔ HÌNH XỬ LÝ BÙN HOẠT TÍNH BẰNG KIỀMMÔN TRUYỀN THÔNG MARKETING TÍCH HỢP