Course code LauZ6115

Credit points 5

Soil and Plant Analysis

Total Hours in Course200

Number of hours for lectures24

Number of hours for seminars and practical classes56

Independent study hours120

Date of course confirmation22.03.2011

Responsible UnitInstitute of Soil and Plant Science

Course developer

author Augsnes un augu zinātņu institūts

Aldis Kārkliņš

Dr. habil. agr.

Prior knowledge

LauZ3139, Soil Fertility and Fertilizers

Course abstract

Concept and objectives of soil testing and plant analysis, data use. Field sampling and sample preparation. Digestion / extraction technique. Determination of elemental composition in aliquots. Gravimetric and volumetric analysis. Optical methods of analysis. Atomic absorption / emission analysis. Potentiometric methodologies. Ion exchange chromatography. Instrumentation used for analysis. Errors in quantitative analysis, error handling. Laboratory organization, layout and equipment. Standardization, accreditation and interlaboratory calibration. Safety in laboratories.

Learning outcomes and their assessment

Students will get an extended knowledge about analytical methods used in soil and plant analysis and obtain skills for planning and interpretation analytical results. As result students will be competent independently work in the sphere of soil investigations and also as advisors for planning analytical activities in agriculture, to make interpretations, to prepare professional and scientific publications.

Course Content(Calendar)

1. Introduction. Objectives of soil and plant analysis. Main parameters used for agricultural applications.
2. Sampling and sample preparation.
3. Aliquots – objectives, methods of preparation.
4. Methods of analytical determinations. Principles for selection.
5. Seminar – Introduction of Laboratory for Agronomy Research (LLU).
6. Optical methods of analysis.
7. Calibration technique, objectives and practical implementation.
8. Emission methods of analysis. CNS analysers.
9. Methods of soil physical parameters.
10. Seminar – nitrogen in soil and plants, determination methods of different groups. Data interpretation.
11. Electrochemical methods of analysis.
12. Errors and inaccuracies in the analytical work. Statistical methods of probability. Data processing.
13. Seminar – soil agrochemical methods, principles for selection, analytical alternatives, data processing and interpretation.
14. Laboratories – organization, equipment, accreditation, quality control.
15. Seminar – interpretation of analytical data, methods, principles, implementation. Data bases.

16. Workshop – presentation of individual studies. Examination – practicals.

Requirements for awarding credit points

During semester – home work, seminar, tests. Individual work and presentation. Cumulative grade (tests, seminar, individual work, presentation, activity score).

Description of the organization and tasks of students’ independent work

Home work
1. Interpretation of analytical data. Preparation of analytical report. Compilation of analytical database.
2. To do the individual presentation for selected topic – seminar with discussion part.

Individual studies, preparation of written report, oral presentation.

Criteria for Evaluating Learning Outcomes

Cumulative exam, includes assessment of three tests, seminar, individual studies with oral presentation and activity score.

Compulsory reading

1. Riņķis G. (1995). Augsnes un augu ķīmiskā analīze. Jelgava: LLU. 48 lpp.
2. Kārkliņš A. (2012). Zeme, augsne, mēslojums: Terminu skaidrojošā vārdnīca. Jelgava: LLU. 477 lpp.
3. Alksnis U., Kļaviņš Z., Kūka P., Ruplis A. (1990). Fizikālā un koloidālā ķīmija. Rīga: Zvaigzne. 425 lpp.
4. Jansons E. (2006). Analītiskās ķīmijas teorētiskie pamati. Rīga: LU Akadēmiskais apgāds. 307 lpp.
5. Jansons E., Meija J. (2002). Kļūdas kvantitatīvajās noteikšanās. Rīga. 155 lpp.
6. Miller J. C., Miller J. N. (1992) Statistics for analytical chemistry. New York, London, Toronto, ....: Ellis Horwood. 227 p.
7. Van Reeuwijk L. P. (2002) Procedures for Soil Analysis, 6th edition. FAO, ISRIC, Wageningen. 105 p.
8. Ринькис Г.Я., Рамане Х.К., Паэгле Т.В., Куницкая Т.А. (1989). Система оптимизации и методы диагностики минерального питания растений. Рига: Зинатне. 196 с.
9. Практикум по агрохимии (1989). Под. ред. В.Г. Минеева. Москва: Изд.-во Московского университета. 304 с.
10. Практикум по агрохимии (1987). Под. ред. Б.А. Ягодина. Москва: Агропроиздат. 512 с.

11. Ринькис Г.Я., и др. (1987). Методы анализа почв и растений. Рига: Зинатне. 174 с.

Further reading

1. Agroķīmiķa rokasgrāmata (1972). Sast. A. Pāvule. Rīga: Liesma. 339 lpp.
2. Tan K.H. (2005). Soil Sampling, Preparation, and Analysis, 2nd ed. Boca Raton, London, New York, Singapore: Taylor & Francis. 623 p.
3. Soil Testing and Plant Analysis (1990). Ed. by R. L. Westerman. Madison: SSSA. 784 p.
4. Methods of Soils Analysis (1996). Part 3. Chemical methods. Ed. by J. M. Bigham. Madison: SSSA. 1390 p.

5. Разумов В.А. (1986). Справочник лаборанта – химика по анализу кормов. Москва: Россельхозиздат. 304 с.

Periodicals and other sources

1. Atbilstoša profila zinātnisko rakstu krājumi un žurnāli.
2. Tematiskās planšetes.
3. Informācija katedras vitrīnās.
4. Materiāli E-studiju vietnē.

5. Zinātniskās publikācijas, INTERNET resursi.

Notes

Restricted elective (Part B) Master study program, specialization – Field crops and Horticulture.