Corpus ID: 930469

An evaluation of the influence of biodynamic practices including foliar-applied silica spray on nutrient quality of organic and conventionally fertilised lettuce (Lactuca sativa L.).

  title={An evaluation of the influence of biodynamic practices including foliar-applied silica spray on nutrient quality of organic and conventionally fertilised lettuce (Lactuca sativa L.).},
  author={G. L. Bacchus},
Evidence for the role of silica in plants is reviewed with respect to the application of silicate based sprays in biodynamic agriculture. There is research indicating improved resistance to pests, disease, drought and other stresses on plants from application of silica fertilisers and sprays. There is also evidence of improved nutrient uptake. Experiments with field grown lettuce were undertaken to evaluate the effects of the biodynamic field-spray preparations and organic composts on lettuce… Expand

Figures and Tables from this paper

Effect of biodynamic preparations on the soil biological and agrochemical properties and coloured potato tubers quality
The research revealed that significantly the highest concentrations of available phosphorus, available potassium, nitrogen and mineral nitrogen in the soil throughout the growing season were identified on the 14th day after soil application of BD preparation 500 (before potato planting). Expand
The effect of biodynamic preparations on growth and fruit quality of giant pumpkin (Cucurbita maxima D.)
Food quality of agricultural crops depends on environmental conditions, production system and cultivation method. A plant-based nutrition with food rich in vitamins, minerals and secondary plantExpand
Influence of nutrient and light management on postharvest quality of lettuce (Lactuca sativa L.) in soilless production systems.
Light quality manipulation effect on some post-harvest attributes of lettuce was observed indicating the ability to produce desired crop quality attributes in a hydroponic system. Expand
Influences of Biodynamic and Conventional Farming Systems on Quality of Potato (Solanum Tuberosum L.) Crops: Results from Multivariate Analyses of Two Long-Term Field Trials in Sweden
Grown after barley the potato crop exhibited better quality traits compared to when grown after ley in both the conventional and the biodynamic farming system. Expand
Growth stimulants have the ability to stimulate growth of roots, shoots and leaves consequently enhanced yield components of various vegetable crops. Therefore, two field experiments were conductedExpand
Effect of biodynamic preparations on the content of some mineral elements and starch in tubers of three coloured potato cultivars
It was found that the quality indicators of potato tubers depended on the genetic characteristics of a cultivar, and BD preparations 500 and 501 had no significant effect on the content of dry matter and mineral element in coloured potato tuber in any of the experimental variants. Expand
The effect of horn-manure preparation on enzymes activity and nutrient contents in soil as well as great pumpkin yield
Abstract This investigation was inspired by an increasing global issue on how to improve soil quality while using alternative preparations instead of synthetic fertilizers. The main aim of aExpand
Biochar Remediation Improves the Leaf Mineral Composition of Telfairia occidentalis Grown on Gas Flared Soil
The results show that biochar treatment can increase leaf mineral concentrations and that this effect is dependent on the amount of biochar application. Expand
Effect of different stages and times of silicon foliar spray on yield and yield components of bean
Sometimes in agriculture, simple and inexpensive operation can cause significant augmentation in plant yield. Studies have shown that foliar spray of silicon in number of plants can lead toExpand
The effect of choline-stabilized orthosilicic acid application under Mn excessive nutrition on yielding of hydroponically grown lettuce (Lactuca sativa L.)Wpływ stosowania stabilizowanego choliną kwasu ortokrzemowego w warunkach nadmiernego żywienia manganem na plonowanie uprawianej hydroponicznie s
Investigation of different concentrations of silicon effect and high levels of manganese in the nutrient medium on the yielding and nutrient status of hydroponically grown lettuce cv. Expand


Response of photosynthesis and superoxide dismutase to silica applied to creeping bentgrass grown under two fertility levels
Abstract Responses of photosynthesis, Superoxide dismutase activity, and disease tolerance of creeping bentgrass (Agrostis palustris Huds. A.) to soluble potassium silicate (20.8% SiO2) treatmentsExpand
Effects of Silicon on Transpiration and Leaf Conductance in Rice Plants(Oryza sativa L.)
It is suggested that silicon is one of the main factors responsible for regulation of gc, but that its effect was not due to an increase in the WG. Expand
Effects of silicon nutrition on metabolism and translocation of nutrients in rice plants
Silicon is a benefical nutrient for paddy rice (Oryza sativa L.). Amino acids composition and concentrations of sucrose were examined in phloem sap and leaf extracts of rice plants grown in nutrientExpand
Aluminium/silicon interactions in higher plants
Aluminium and silicon are usually abundant in soil mineral matter, but their availability for plant uptake is limited by low solubility and, in the case of AI, high soil pH causes precipitation ofExpand
Mineral Nutrition of Higher Plants
This chapter discusses the relationship between Mineral Nutrition and Plant Diseases and Pests, and the Soil-Root Interface (Rhizosphere) in Relation to Mineral Nutrition. Expand
Plant nutrition : food security and sustainability of agro-ecosystems through basic and applied research
Local Organising Committee. Symposium Conveners. Sponsors. International Council on Plant Nutrition. Preface. Plenary papers. 1. Genetics and molecular biology of plant nutrition. 2. NutrientExpand
A Comparison of Organically and Conventionally Grown Foods—Results of a Review of the Relevant Literature
This review is concerned with the summary and evaluation of the results from more than 150 investigations comparing the quality of conventionally and organically produced food or of foods producedExpand
Evaluation of a rapid method for plant sap nitrate analysis
Abstract A rapid method of analysis of nitrate in plant sap using Merck test strips was evaluated. Accuracy and precision of the strips was found to be acceptable in a test in which aqueous samplesExpand
Silicon and plant disease resistance against pathogenic fungi.
Silicon possesses unique biochemical properties that may explain its bioactivity as a regulator of plant defense mechanisms, and may interact with several key components of plant stress signaling systems leading to induced resistance. Expand
Quality of plant products grown with manure fertilization
The meeting discussed results of food quality obtained by different long-term trials in Switzerland (DOC trial), Germany (Darmstadt) and Sweden (K trial etc.). Based on the results, the parametersExpand