Optimization of Plant Nutrition

1. Front Matter

   Pages I-XVI

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2. Plant analysis methods and reference values for plant material

   1. Front Matter

      Pages 1-1

      PDF

   2. A rapid wet digestion method for plant analysis

      • A. Pequerul, C. Pérez, P. Madero, J. Val, E. Monge

      Pages 3-6

   3. Comparison of techniques for nitrogen analysis in potato crops

      • M. W. Young, H. V. Davies, D. K. L. MacKerron

      Pages 7-11

   4. Evaluation of inorganic elements in agricultural products from Italian farms by instrumental neutron activation analysis

      • A. Moauro, L. Triolo, P. Avino, L. Ferrandi

      Pages 13-17

   5. Determination of lead in white lupin by anodic stripping voltammetry

      • Maria M. P. M. Neto, Amarilis De Varennes

      Pages 19-23

   6. Determination of copper in different chloroplast preparations

      • J. B. Arellano, M. Baron, A. Chueca, M. Lachica

      Pages 25-29

   7. Four new CII reference materials for the chemical analysis of plants: Pine needles, oak leaves, barley-straw and apple-fruit

      • R. Ch. Daniel, P. Lischer, G. Theiller

      Pages 31-35

   8. Determination of leaf standards for apple trees and grapevines in northern Italy

      • O. Failla, G. Stringari, D. Porro, A. Scienza

      Pages 37-41

   9. Interpretative indices for leaf analysis in vineyards of the Portuguese region of Bairrada

      • Cecilia Pachecho, Fatima Calouro, Anabela Andrade

      Pages 43-47

   10. Relationship between aboveground dry weight and N, P and K concentrations in grassland species: A guide for the diagnosis of plant nutrient status

       • A. Peeters, V. Van Bol

       Pages 49-54

3. Nutritional characteristics and management of growth media

   1. Front Matter

      Pages 55-55

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   2. Potassium supplying capacity of northeastern Portuguese soils

      • Ester A. C. Portela

      Pages 57-64

   3. Nutritional disorders between potassium, magnesium, calcium, and phosphorus in soil

      • S. T. Jakobsen

      Pages 65-72

   4. The influence of the soil phosphate capacity factor on soil and plant phosphorus critical levels of different vegetables

      • Roberto F. Novais, Julio C. L. Neves, Nairam F. Barros, Vincente W. D. Casali, Antonio S. Fabres

      Pages 73-76

   5. The use as fertilizer of combined primary/secondary pulp-mill sludge

      • F. Cabral, E. Vasconcelos

      Pages 77-81

   6. The use of industrial wastes as manures: A case study with effluent mud from an olive oil processing plant

      • D. Anaç, H. Hakerlerler, M. E. Īrget

      Pages 83-86

   7. Influence of container size and substrate mineral composition on transplant growth and yield of broccoli cv. Green Duke

      • Ana Maria Simões, Fátima Calouro, Eduardo Abrantes, Edmundo Sousa

      Pages 87-92

   8. Mulch and topdressed nitrogen effects on bell pepper

      • P. D. Castellane, R. K. Fujimura, J. A. C. de Araujo, M. E. Ferreira

      Pages 93-96

   9. Long-term effects of gypsiferous coal combustion ash applied at disposal levels on soil chemical properties

      • R. F. Korcak, W. Doral Kemper

      Pages 97-100

The world-wide shortage of plant production menacing the survival of many people demands for more and better research, particularly on how to increase food and where it is most needed. Major problems of international concern for the scientific community are the availability in soil media of macro and micro nutrients and the efficiency of nutrient uptake by plant roots, the interactions between nutrients and other factors, the distribution of nutrients in different plant species, biochemical functions of nutrient elements, and their contribution to plant growth, yield and product quality. Feasibility and profit are also permanent concerns about plant nutrition in crop management, to which new require­ ments are now imposed by the need to decrease pollution hazards, a problem of prime importance to preserve the environment of the future. is A deeper insight into basic knowledge further required as well as into practical problems in the domains of agriculture, horticulture, and forestry. Such has been the concern of the International Association for the Optimization of Plant Nutrition (IAOPN) since 1964, promoting International Colloquia every four years as an opportunity for scientists concerned with plant nutrition to report new findings and to exchange ideas, experiences, and techniques. The Eighth International Colloquium for the Optimization of Plant Nutrition was hosted by Portugal and held in Lisbon from 31 August to 8 September 1992, with 280 delegates from 34 countries.

• Plant nutrition
• agriculture
• development
• environment
• environmental pollution
• environmental stress
• growth
• nutrition
• plant
• plants
• pollution
• quality

• National Institute for Agrarian Research (INIA), National Agronomy Research Station, Oeiras, Portugal

  M. A. C. Fragoso

• Department of Soil Science and Plant Nutrition, Wageningen Agricultural University, Wageningen, The Netherlands

  M. L. Beusichem

• Department of Microbiology, Wageningen Agricultural University, Wageningen, The Netherlands

  A. Houwers

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