Log in

Relevant bibliographies by topics / Long-term field experiments / Journal articles

To see the other types of publications on this topic, follow the link: Long-term field experiments.

Journal articles on the topic 'Long-term field experiments'

Author: Grafiati

Published: 7 July 2024

Last updated: 19 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Long-term field experiments.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Merbach, W., and A. Deubel. "Long-term field experiments – museum relics or scientific challenge?" Plant, Soil and Environment 54, No. 5 (2008): 219–26. http://dx.doi.org/10.17221/395-pse.

Full text

Abstract:

By reference to the Eternal Rye trial in Halle, Germany, as an example, it is demonstrated that long-term trials provide indispensable information for contemporary and future land use research. These trials serve as tools for the examination of cultivation measures or the effects of climate on nutrient dynamics and mobilization, microbial biodiversity, mineral composition or soil formation processes. They are therefore essential for the evaluation of land-use strategies or climatic change and, because of that, can provide more accuracy in related political considerations.

APA, Harvard, Vancouver, ISO, and other styles

2

Frye, W. W., and G. W. Thomas. "Management of Long‐Term Field Experiments." Agronomy Journal 83, no. 1 (1991): 38–44. http://dx.doi.org/10.2134/agronj1991.00021962008300010012x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Brown, J. R. "Summary: Long‐Term Field Experiments Symposium." Agronomy Journal 83, no. 1 (1991): 85. http://dx.doi.org/10.2134/agronj1991.00021962008300010020x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Christensen, Bent T. "The Askov long‐term field experiments." Archives of Agronomy and Soil Science 42, no. 3-4 (1997): 265–78. http://dx.doi.org/10.1080/03650349709385732.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Balík, Jiří, Jindřich Černý, Martin Kulhánek, and Ondřej Sedlář. "Soil carbon transformation in long-term field experiments with different fertilization treatments." Plant, Soil and Environment 64, No. 12 (2018): 578–86. http://dx.doi.org/10.17221/591/2018-pse.

Full text

Abstract:

Soil carbon transformation was observed in long-term stationary field experiments (longer than 20 years) at two sites with different soil-climatic conditions (Luvisol, Chernozem). The following crops were rotated within the trial: row crops (potatoes or maize)-winter wheat-spring barley. All three crops were grown each year. Four different fertilization treatments were used: (a) no fertilizer (control); (b) sewage sludge (9.383 t dry matter/ha/3 years); (c) farmyard manure (15.818 t dry matter/ha/3 years); (d) mineral NPK fertilization (330 kg N, 90 kg P, 300 kg K/ha/3 years). At the Luvisol s

APA, Harvard, Vancouver, ISO, and other styles

6

Vašák, F., J. Černý, Š. Buráňová, M. Kulhánek, and J. Balík. "Soil pH changes in long-term field experiments with different fertilizing systems." Soil and Water Research 10, No. 1 (2016): 19–23. http://dx.doi.org/10.17221/7/2014-swr.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Černý, J., J. Balík, M. Kulhánek, and V. Nedvěd. "The changes in microbial biomass C and N in long-term field experiments." Plant, Soil and Environment 54, No. 5 (2008): 212–18. http://dx.doi.org/10.17221/393-pse.

Full text

Abstract:

Microbial biomass nitrogen and carbon were studied in long-term field experiments with continuous cultivation of silage maize and with crop rotation. A positive effect of organic fertilizers on the microbial biomass nitrogen and the carbon content in soil was observed. Statistically significant effect of organic fertilizers on the higher content of microbial biomass C and N was established in the first year after their application. During the application the content of microbial biomass carbon and nitrogen decreased, but there were higher biomass C and N contents compared to control, even with

APA, Harvard, Vancouver, ISO, and other styles

8

Peterson, G. A., D. J. Lyon, and C. R. Fenster. "Valuing Long-Term Field Experiments: Quantifying the Scientific Contribution of a Long-Term Tillage Experiment." Soil Science Society of America Journal 76, no. 3 (2012): 757–65. http://dx.doi.org/10.2136/sssaj2011.0413.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Sibbesen, Erik. "Soil movement in long-term field experiments." Plant and Soil 91, no. 1 (1986): 73–85. http://dx.doi.org/10.1007/bf02181820.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Debreczeni, Katalin, and Martin Körschens. "Long-term field experiments of the world." Archives of Agronomy and Soil Science 49, no. 5 (2003): 465–83. http://dx.doi.org/10.1080/03650340310001594754.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

N�meth, T. "Nitrogen balances in long-term field experiments." Fertilizer Research 43, no. 1-3 (1996): 13–19. http://dx.doi.org/10.1007/bf00747677.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Balík, Jiří, Jindřich Černý, Martin Kulhánek, Ondřej Sedlář, and Pavel Suran. "Balance of potassium in two long-term field experiments with different fertilization treatments." Plant, Soil and Environment 65, No. 5 (2019): 225–32. http://dx.doi.org/10.17221/109/2019-pse.

Full text

Abstract:

Balance of potassium (K) was observed in long-term stationary field experiments (21 years) at two sites with different soil and climatic conditions (Luvisol, Cambisol). The following crops were rotated within the trial: potatoes- winter wheat-spring barley. All three crops were grown each year. The trial comprised 6 treatments: (1) no fertilization; (2) farmyard manure; (3) half dose of farmyard manure + nitrogen (N) in mineral nitrogen fertilizers; (4) mineral nitrogen fertilizers; (5) NPK in mineral fertilizers; (6) straw of spring barley + N in mineral nitrogen fertilizers. The recovery rat

APA, Harvard, Vancouver, ISO, and other styles

13

Kulhánek, Martin, Jindřich Černý, Jiří Balík, Ondřej Sedlář, and Filip Vašák. "Changes of soil bioavailable phosphorus content in the long-term field fertilizing experiment." Soil and Water Research 14, No. 4 (2019): 240–45. http://dx.doi.org/10.17221/175/2018-swr.

Full text

Abstract:

The aim of this study is to describe the changes of bioavailable phosphorus content in soil in long-term 18 years field experiments with different fertilizing systems. The field experiments are located at three sites with different soil and climatic conditions in the Czech Republic (Červený Újezd, Humpolec and Prague-Suchdol). Same fertilizing systems and crop rotation (potatoes (maize) – winter wheat – spring barley) are realized at each site with following fertilizing treatments: (1) unfertilized treatment (control), (2) farmyard manure (FYM), (3) and (4) sewage sludge (SS 1 and SS 3), (5) m

APA, Harvard, Vancouver, ISO, and other styles

14

Kismányoki, T. "Importance and necessity of long-term field experiments." Acta Agronomica Hungarica 58, Supplement 1 (2010): 7–11. http://dx.doi.org/10.1556/aagr.58.2010.suppl.1.2.

Full text

Abstract:

The importance and necessity of long-term field experiments lie in the fact that long-term effects can only be studied reliably over several decades. The agronomic advances made in recent decades, based on chemicals and genetic gains, can be measured using long-term data, which will also be important in the future. Nutrient balances can be estimated reliably from the results of these experiments. The effect of climate change can be estimated by comparing long-term data from different locations. Long-term databases also form the background for computer models, designed to promote the sustainabl

APA, Harvard, Vancouver, ISO, and other styles

15

Debreczeni, Katalin, and Tamás Kismányoky. "Acidification of Soils in Long‐Term Field Experiments." Communications in Soil Science and Plant Analysis 36, no. 1-3 (2005): 321–29. http://dx.doi.org/10.1081/css-200043087.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Káš, M., G. Mühlbachová, H. Kusá, and M. Pechová. "Soil phosphorus and potassium availability in long-term field experiments with organic and mineral fertilization." Plant, Soil and Environment 62, No. 12 (2016): 558–65. http://dx.doi.org/10.17221/534/2016-pse.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Kulhánek, M., J. Balík, J. Černý, O. Sedlář, and F. Vašák. "Evaluating of soil sulfur forms changes under different fertilizing systems during long-term field experiments." Plant, Soil and Environment 62, No. 9 (2016): 408–15. http://dx.doi.org/10.17221/236/2016-pse.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Poulton, P. R. "Management and modification procedures for long-term field experiments." Canadian Journal of Plant Science 76, no. 4 (1996): 587–94. http://dx.doi.org/10.4141/cjps96-106.

Full text

Abstract:

Long-term experiments like those at Rothamsted in southeast England offer the best practical means of studying the effects of land management or global change on soil fertility, sustainability of yield or wider environmental issues. For the data from such experiments to be of use, farmers, scientists and policy makers must be certain of their validity. This is best assured by the rigorous management of the experiment, by ensuring that any changes are carefully considered and that all operations are well-documented. A steady flow of well-interpreted, published data is also essential. This paper

APA, Harvard, Vancouver, ISO, and other styles

19

Le Duc, M. G., L. Yang, and R. H. Marrs. "A database application for long-term ecological field experiments." Journal of Vegetation Science 18, no. 4 (2007): 509. http://dx.doi.org/10.1658/1100-9233(2007)18[509:adafle]2.0.co;2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Le Due, M. G., L. Yang, and R. H. Marrs. "A database application for long‐term ecological field experiments." Journal of Vegetation Science 18, no. 4 (2007): 509–16. http://dx.doi.org/10.1111/j.1654-1103.2007.tb02565.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Körschens, Martin. "(Global and regional importance of long-term field experiments)." Archives of Agronomy and Soil Science 51, no. 2 (2005): 111–17. http://dx.doi.org/10.1080/03650340400026677.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

von Gagern, Wilfried, Manfred Roschke, and Jörg Zimmer. "Preface: (Long-term field experiments as experimental basis of soil fertility research – 45 years of long-term field experiments at Groß Kreutz/Brandenburg)." Archives of Agronomy and Soil Science 51, no. 2 (2005): 109. http://dx.doi.org/10.1080/03650340500032989.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Grosse, Meike, Wilfried Hierold, Marlen C. Ahlborn, Hans-Peter Piepho, and Katharina Helming. "Long-term field experiments in Germany: classification and spatial representation." SOIL 6, no. 2 (2020): 579–96. http://dx.doi.org/10.5194/soil-6-579-2020.

Full text

Abstract:

Abstract. The collective analysis of long-term field experiments (LTFEs), here defined as agricultural experiments with a minimum duration of 20 years and research in the context of sustainable soil use and yield, can be used for detecting changes in soil properties and yield such as those induced by climate change. However, information about existing LTFEs is scattered, and the research data are not easily accessible. In this study, meta-information on LTFEs in Germany is compiled and their spatial representation is analyzed. The study is conducted within the framework of the BonaRes project,

APA, Harvard, Vancouver, ISO, and other styles

24

Załuski, Dariusz, Jacek Mielniczuk, Urszula Bronowicka-Mielniczuk, et al. "Survival Analysis of Plants Grown in Long-Term Field Experiments." Agronomy Journal 110, no. 5 (2018): 1791–98. http://dx.doi.org/10.2134/agronj2018.01.0062.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Roschke, MAnfred, and Wilfried von Gagern. "(Results from long-term field experiments concerning soil fertility preservation)." Archives of Agronomy and Soil Science 51, no. 2 (2005): 119–24. http://dx.doi.org/10.1080/03650340400026610.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Langer, Uwe, and Eva-Maria Klimanek. "Soil microbial diversity of four German long-term field experiments." Archives of Agronomy and Soil Science 52, no. 5 (2006): 507–23. http://dx.doi.org/10.1080/03650340600915554.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Donmez, Cenk, Marcus Schmidt, Ahmet Cilek, et al. "Climate change impacts on long-term field experiments in Germany." Agricultural Systems 205 (February 2023): 103578. http://dx.doi.org/10.1016/j.agsy.2022.103578.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

RW, Neugschwandtner, P. Liebhard, Kaul H-P, and H. Wagentristl. "Soil chemical properties as affected by tillage and crop rotation in a long-term field experiment." Plant, Soil and Environment 60, No. 2 (2014): 57–62. http://dx.doi.org/10.17221/879/2013-pse.

Full text

Abstract:

Long-term field experiments are important for explaining tillage and rotation effects on soil fertility and to develop sustainable nutrient management strategies. An experiment was established in 1996 in Raasdorf (Austria) on chernozem with four tillage treatments (mouldboard ploughing (MP); no-till; deep conservation tillage and shallow conservation tillage) and two crop rotations. Soil samples were taken in November 2003 from&nbsp;10 cm soil layers down to 40 cm to assess the effects on pH, carbonate content (CaCO<sub>3</sub>), soil organic carbon (SOC), total nitrogen (N<

APA, Harvard, Vancouver, ISO, and other styles

29

Madaras, M., and J. Lipavský. "Interannual dynamics of available potassium in a long-term fertilization experiment." Plant, Soil and Environment 55, No. 8 (2009): 334–43. http://dx.doi.org/10.17221/34/2009-pse.

Full text

Abstract:

Dynamics of the plant-available potassium (K) has been studied in polyfactorial long-term fertilization experiments since 1980. The fertilization scheme includes 10 combinations of K muriate and farmyard manure application rates (annually 0–230 kg K/ha). At medium treatment (annually 153 kg K/ha), the K balance within an 8-year crop rotation reflected crop specific K application rates with positive annual balances in years of growing silage maize and sugar beet (high K input), and negative in two years of growing alfalfa. Available K clearly corresponded to the dynamics of the K balance, with

APA, Harvard, Vancouver, ISO, and other styles

30

Gibson, David J., Beth A. Middleton, Gerald W. Saunders, et al. "Learning Ecology by Doing Ecology: Long-Term Field Experiments in Succession." American Biology Teacher 61, no. 3 (1999): 217–22. http://dx.doi.org/10.2307/4450654.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Bircsák, É., and Tamás Németh. "Nitrate-N in the Soil Profiles of Long-term Field Experiments." Agrokémia és Talajtan 51, no. 1-2 (2002): 139–46. http://dx.doi.org/10.1556/agrokem.51.2002.1-2.17.

Full text

Abstract:

Long-term N fertilization experiments were established with identical treatments at two different growing areas in Hungary: one on a calcareous sandy soil (Őrbottyán) and the other on a calcareous chernozem soil (Nagyhörcsök). The aim was to create differences in mineral-N content in the soil profiles in order to determine their N supplying capacity and to establish whether the accumulated nitrate may be regarded as a supply index for crop production. The results showed that under certain environmental conditions N may accumulate in the soil profile in the form of nitrate, resulting from N fer

APA, Harvard, Vancouver, ISO, and other styles

32

XU, Ming-gang, Hua-jun TANG, Xue-yun YANG, and Shi-wei ZHOU. "Best soil managements from long-term field experiments for sustainable agriculture." Journal of Integrative Agriculture 14, no. 12 (2015): 2401–4. http://dx.doi.org/10.1016/s2095-3119(15)61235-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Sandén, T., H. Spiegel, H. P. Stüger, et al. "European long-term field experiments: knowledge gained about alternative management practices." Soil Use and Management 34, no. 2 (2018): 167–76. http://dx.doi.org/10.1111/sum.12421.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Győri, Zoltán. "Sulphur Content of Winter Wheat Grain in Long Term Field Experiments." Communications in Soil Science and Plant Analysis 36, no. 1-3 (2005): 373–82. http://dx.doi.org/10.1081/css-200043098.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Revt'ie-Uvarova, A., V. Nikonenko, and O. Slidenko. "Algorithm of organizing soil monitoring based on long-term field experiments." Visnyk agrarnoi nauky 102, no. 2 (2024): 73–82. http://dx.doi.org/10.31073/agrovisnyk202402-11.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Balík, Jiří, Martin Kulhánek, Jindřich Černý, Ondřej Sedlář, and Pavel Suran. "Potassium fractions in soil and simple K balance in long-term fertilising experiments." Soil and Water Research 15, No. 4 (2020): 211–19. http://dx.doi.org/10.17221/151/2019-swr.

Full text

Abstract:

Experiments were used to determine the potassium release from the non-exchangeable K (Kne) forms that are involved in plant nutrition and which replenish the pool of available K. Long-term stationary field experiments with different fertilisation systems (organic: farmyard manure, sewage sludge, straw; mineral: NPK, N) were carried out to study the potassium balance and the K content changes in the topsoil (0–30 cm) and subsoil (30–60 cm). The trials were located at three sites with different soil-climatic conditions. The following crops were rotated within the trial: potatoes (maize) – winter

APA, Harvard, Vancouver, ISO, and other styles

37

Morel, Christian, Noura Ziadi, Aimé Messiga, et al. "Modeling of phosphorus dynamics in contrasting agroecosystems using long-term field experiments." Canadian Journal of Soil Science 94, no. 3 (2014): 377–87. http://dx.doi.org/10.4141/cjss2013-024.

Full text

Abstract:

Morel, C., Ziadi, N., Messiga, A., Bélanger, G., Denoroy, P., Jeangros, B., Jouany, C., Fardeau, J. C., Mollier, A., Parent, L. E., Proix, N., Rabeharisoa, L. and Sinaj, S. 2014. Modeling of phosphorus dynamics in contrasting agroecosystems using long-term field experiments. Can. J. Soil Sci. 94: 377–387. Long-term field experiments on phosphorus (P) fertilization were originally designed to study crop needs in different soil types by analyzing the effects of several rates of P fertilization on yields, their P concentrations and dynamics of plant-available soil P. The objective of this study w

APA, Harvard, Vancouver, ISO, and other styles

38

Várallyay, G. "Territorial and temporal extension of the results of long-term field experiments." Acta Agronomica Hungarica 58, Supplement 1 (2010): 13–22. http://dx.doi.org/10.1556/aagr.58.2010.suppl.1.3.

Full text

Abstract:

Agronomic experiments resemble dialogues with the plant, the soil, and the studied medium in general. The results of long-term field experiments are only valid for a given territorial unit and a given time interval, so if they are to be used by the agronomic advisory service as an exact scientific basis for a larger area and for a longer period, the measured point and minute information must be extended and validated in space and time. The paper emphasizes the unavoidable necessity of this extension, summarizes the limitations and difficulties, introduces various alternative solutions and disc

APA, Harvard, Vancouver, ISO, and other styles

39

Fontana, Mario, Gilles Bélanger, Juliane Hirte, et al. "Critical plant phosphorus for winter wheat assessed from long-term field experiments." European Journal of Agronomy 126 (May 2021): 126263. http://dx.doi.org/10.1016/j.eja.2021.126263.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Zhelezova, A. D., A. K. Tkhakakhova, N. V. Yaroslavtseva, et al. "Microbiological parameters of aggregates in typical chernozems of long-term field experiments." Eurasian Soil Science 50, no. 6 (2017): 701–7. http://dx.doi.org/10.1134/s1064229317060126.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Pruitt, Dean. "Field Experiments on Social Conflict." International Negotiation 10, no. 1 (2005): 33–50. http://dx.doi.org/10.1163/1571806054741173.

Full text

Abstract:

AbstractField experiments, in which the researcher manipulates one or more variables in a naturally occurring setting, have sometimes been used in studies of social conflict and should probably be used more often. They are more useful than observational studies for assessing the impact of novel conditions, establishing cause and effect, and reducing confounding. And they are more useful than laboratory experiments for examining long-term effects and those that involve strong passions, and for establishing external validity. However field experiments also have their limitations. Some variables

APA, Harvard, Vancouver, ISO, and other styles

42

Soares, Natália, Paul Walther, and Martin Werner. "Experiments on Geospatial Data Modelling for Long-Term Trajectory Prediction of Aircrafts." AGILE: GIScience Series 6 (June 9, 2025): 1–7. https://doi.org/10.5194/agile-giss-6-46-2025.

Full text

Abstract:

Abstract. While predicting human and vehicle trajectories is a deeply investigated field of research, predicting aircraft trajectories remains a less explored frontier. Still, the long-term prediction of aircraft movements is a fundamental challenge in aviation, influencing Air Traffic Management (ATM), operational efficiency, and flight safety. Traditional trajectory prediction models are often primarily focused on a 2D prediction.With this work, we evaluate different data representation methods in the field of long-term aircraft trajectory prediction using a state-of-the-art mobility predict

APA, Harvard, Vancouver, ISO, and other styles

43

Mohammadi, Nazir Khan, Mohammad Gul Arabzai, Muneeb Ur Rahman, and Zikui Wang. "Sustainable wheat cultivation in Asia: insights and innovations from long-term field experiments." Agricultural Science and Technology 17, no. 2 (2025): 3–22. https://doi.org/10.15547/ast.2025.02.015.

Full text

Abstract:

Abstract. Wheat plays a critical role in ensuring food security across Asia, where increasing demand, resource limitations, and climate change pose significant challenges to the sustainability of production. Long-term field experiments (LTEs), characterized by decades of continuous observation, provide essential evidence regarding the impacts of agronomic practices on productivity, soil health, climate resilience, and resource efficiency. This review synthesizes findings from LTEs conducted in Asia and worldwide to evaluate the sustainability of wheat-based systems. Yield trends observed in Lo

APA, Harvard, Vancouver, ISO, and other styles

44

Sibbesen, E., and C. E. Andersen. "Soil Movement in Long-term Field Experiments as a Result of Cultivations. II. How to Estimate the Two-Dimensional Movement of Substances Accumulating in the Soil." Experimental Agriculture 21, no. 2 (1985): 109–17. http://dx.doi.org/10.1017/s0014479700012394.

Full text

Abstract:

SUMMARYA previously presented model for one-dimensional soil movement by repeated tillage is extended for use under the more complex conditions of long-term field experiments, for (i) following the two-dimensional movement (along and across the plots) of accumulating substances (nutrients, disease organisms, etc.) caused by tillage; (ii) determining the smallest acceptable plot size from given conditions, when planning new long-term field experiments and (iii) determining the size of the discard relative to the size of the treated plot.Diagrams are given from which rough estimations can be mad

APA, Harvard, Vancouver, ISO, and other styles

45

Juhász, Evelin Kármen, and Andrea Balláné Kovács. "Evaluating of soil sulphur forms changes in long-term field experiments of Látókép." Acta Agraria Debreceniensis, no. 2 (December 15, 2019): 71–76. http://dx.doi.org/10.34101/actaagrar/2/3681.

Full text

Abstract:

The aim of this work was to evaluate the changes of different sulphur forms (soluble, adsorbed) in chernozem soil in a long-term field experiment supplied with increasing doses of NPK fertilizers for a long time. In addition, other objective of this study included the examination of the applicability of recommended extractants of the different sulphate fraction in Hungarian soils. A long-term field experiment was established at the Research Station of Látókép of the University of Debrecen in 1984. In addition to control, two levels of NPK fertilizer doses have been used with irrigated and non-

APA, Harvard, Vancouver, ISO, and other styles

46

Smiley, Richard W., Stephen Machado, Karl E. L. Rhinhart, Catherine L. Reardon, and Stewart B. Wuest. "Rapid Quantification of Soilborne Pathogen Communities in Wheat-Based Long-Term Field Experiments." Plant Disease 100, no. 8 (2016): 1692–708. http://dx.doi.org/10.1094/pdis-09-15-1020-re.

Full text

Abstract:

Rainfed experiments operated continuously for up to 84 years in semiarid eastern Oregon are among the oldest agronomic trials in North America. Disease incidence and severity had been quantified visually but quantification of inoculum density had not been attempted. Natural inoculum of 17 fungal and nematode pathogens were quantified for each of 2 years on eight trials using DNA extracts from soil. Crop type, tillage, rotation, soil fertility, year, and their interactions had large effects on the pathogens. Fusarium culmorum and Pratylenchus thornei were more dominant than F. pseudograminearum

APA, Harvard, Vancouver, ISO, and other styles

47

Zavattaro, Laura, Luca Bechini, Carlo Grignani, et al. "Agronomic effects of bovine manure: A review of long-term European field experiments." European Journal of Agronomy 90 (October 2017): 127–38. http://dx.doi.org/10.1016/j.eja.2017.07.010.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Itoi, R., M. Fukuda, K. Jinno, K. Hirowatari, N. Shinohara, and T. Tomita. "Long-term experiments of waste water injection in the otake geothermal field, Japan." Geothermics 18, no. 1-2 (1989): 153–59. http://dx.doi.org/10.1016/0375-6505(89)90022-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Kubát, J., J. Klír, and D. Pova. "The dry nitrogen yields nitrogen uptake, and the efficacy on nitrogen fertilisation in long-term experiment in Prague." Plant, Soil and Environment 49, No. 8 (2011): 337–45. http://dx.doi.org/10.17221/4134-pse.

Full text

Abstract:

Long-term field experiments conducted under different soil and climate conditions and their databases provide invaluable information and are indispensable means in the study of the productivity and sustainability of the soil management systems. We evaluated the results of the dry matter yields of the main products obtained with four variants of organic and mineral fertilisation in three long-term field experiments established in 1955. The experiments differed in the cultivated crops. The period of evaluation was 12 and 16 years (1985&ndash;2000), respectively. The productivity of nine-year

APA, Harvard, Vancouver, ISO, and other styles

50

Nedvěd, V., J. Balík, J. Černý, M. Kulhánek, and M. Balíková. "The changes of soil nitrogen and carbon contents in a long-term field experiment under different systems of nitrogen fertilization." Plant, Soil and Environment 54, No. 11 (2008): 463–70. http://dx.doi.org/10.17221/435-pse.

Full text

Abstract:

Content of N and C in soil were investigated in a long-term field experiment under different systems of N fertilization. Chernozem and Cambisol were extracted using hot water (N<sub>hws</sub>, C<sub>hws</sub>) and 0.01M CaCl<sub>2</sub> (N<sub>CaCl2</sub>, C<sub>DOC</sub>). The C<sub>t</sub>/N<sub>t</sub> ratio in Chernozem was 9.6:1 and in Cambisol 6.1:1. The lowest C<sub>t</sub>/N<sub>t</sub> ratio in both experiments was found in the control treatment. Results showed that C and N comp

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!