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High phosphorus level impedes manganese uptake - Plant nutrition courier August 2011
Crops growing on soils with a relatively high phosphorus level have an increased risk of manganese deficiency. Danish scientists have found this phosphorus-manganese antagonism in hydroponics and pot experiments with barley as model plant. The researchers expect that this hitherto unknown antagonism may be true for other crops, since it involves a general mechanism in plants. The Plant nutrition courier reports about this phenomenon in the August 2011 issue.
Click here to read the free Plant nutrition courier February 2011 issue.
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Phosphorus fertilisation recommendations under review - Plant nutrition courier August 2011
Dutch and German plant nutritionists question the accuracy of current phosphorus fertilisation recommendations. They agree that the recommendations may be too high, but take different lines to make them more precisely. In this feature, the August 2011 issue of the Plant nutrition courier presents state-of-the-art information and comments of experts.
Click here to read the free Plant nutrition courier February 2011 issue.
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Plant nutrition courier gets unique patent column - Plant nutrition courier February 2011
Three patents filed by SKW Piesteritz, a patent application covering a novel process for the preparation of Fe(III)-HBED and its derivatives, and two patent applications related to a slow release fertiliser from Swedish origin: this is the yield of a quick patent scan for the first months of 2011, published in the February 2011 issue of the Plant nutrition courier.
The quick patent scan is a regular feature in the face-lifted Plant nutrition courier. Further the Plant nutrition courier and Beneficial nutrients news are integrated and have more short news items.
Click here to read the free Plant nutrition courier February 2011 issue.
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Potassium sulphate improves lily flower colour - Plant nutrition courier June 2010
Pre-harvest foliar application of a low dose of potassium sulphate and/or sucrose improves the colour quality of Asiatic hybrid lily cultivars and LA hybrid lily cultivars that have high red components in the flowers. Spraying potassium sulphate before the harvest also improves flower size and longevity and reduces flower abortion, Italian research horticulturists say. Read about this research in the June issue of the Plant nutrition courier supplement.
Click here to order the Beneficial nutrients news + Plant nutrition courier February 2010 issue.
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Nano-sized biosensor makes nitrogen fertiliser crop-specific - Beneficial nutrients news April 2010
Root exudates communicate a crops’ nitrogen status. Canadian researchers use this decades-old knowledge to develop intelligent nitrogen fertilisers that release this nutrient on demand. The coated fertiliser products will be fitted with crop-specific nano¬sized biosensors, Beneficial nutrients news reports. This issue too has a quick patent scan covering nanotechnology in plant nutrition.
Click here to order the Beneficial nutrients news April 2010 issue.
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Novel nitrification inhibitors in the making - Plant nutrition courier February 2010
Nitrification and urease inhibitors are available for decades. Inventors however demonstrate that improvements of these products are still possible, the Plant nutrition courier supplement of Beneficial nutrients news reports. Read about novel nitrification inhibitory substances, combinations of urease inhibitors, novel NBPT formulations, a face-lift for nitrapyrin and a remarkable carrier.
Click here to order the Beneficial nutrients news + Plant nutrition courier February 2010 issue.
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Cobalt inhibits ethylene production - Beneficial nutrients news February 2010
Cobalt inhibits the production of ethylene. So cobalt alleviates abiotic stress and extends the vase life of cut flowers. This feature in Beneficial nutrients news gives background information and many hyperlinks to relevant references.
Click here to order the Beneficial nutrients news February 2010 issue.
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Nanotech on farmers' fields - Beneficial nutrients news December 2009
The coming four issues Beneficial nutrients news reports about developments in the sphere of nanotech and submicron fertilisers - a field where silicion products are well represented. This particle size series starts with a delayed lustrum issue with facts and views concerning nanotechnology in agriculture and consumer products (see front page). The next issues are devoted to research and development covering nanotech fertilisers, farming with ultrafine rocks and last but not least grinding techniques to prepare nano and submicron particles.
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Silicon-fed potato less prone to green peach aphid - Beneficial nutrients news August 2009
Silicon-fed potato plants are more resistant to green peach aphid than silicon-deprived potatoes. Silicon nutrition therefore has potential as strategy for integrated aphid control, Brazilian researchers conclude from greenhouse experiments with foliar or soil treated potato plants, Beneficial nutrients news reports.
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Silicious fertilisers increasingly patented - Beneficial nutrients news April 2009
Silicon nutrition attracts increasing attention. The many patent publications from the last decade reflect the growing interest in this beneficial nutrient. For a few years China has most of the patent publications covering the preparation of novel silicon-containing fertiliser compositions, so it appears from a patent scan conducted by Beneficial nutrients news.
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Selenium improves potato performance - Beneficial nutrients news February 2009
Selenium can improve potato tuber yield, size and processing quality. Application of this beneficial nutrient also stimulates starch accumulation. Last but not least researchers have found indications for enhanced photooxidative stress tolerance. But selenium enrichment of potato requires carefulness. This issue of Beneficial nutrients news is devoted to selenium effects in potato. Dozens of hyperlinks to relevant publications offer an extensive review of the state of the art.
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New: Supplement about plant nutrition research - Beneficial nutrients news February 2009
A new diagnostic tool to measure the manganese state of plants, novel nano-fertilisers, and the underrated role of stomata in the uptake of foliar fertilisers. The April issue of the Plant nutrition courier reports about these innovations. The Plant nutrition courier is a new supplement to Beneficial nutrients news. This special interest supplement only costs an additional subscription rate of € 30.00 ex VAT. The Plant nutrition courier supplies with the best bits of plant nutrition research.
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Silicon alleviates soil salinity effects - Beneficial nutrients news December 2008
All over the world the area of saline soils increases. The causes of this salinization may differ per region, but everywhere it adversely affects crop yield and quality. Beneficial nutrients news reports how silicon can alleviate the detrimental effects of salinity.
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Zinnia performs better with silicon supplementation - Beneficial nutrients news December 2008
Zinnia benefits from silicon supplementation. The addition of this beneficial nutrient results in better performing plants, with a strongly enhanced resistance to powdery mildew. Silicon nutrition too improves the resistance of zinnia and other ornamentals to harmful insects.
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Silicon is beneficial to nursery crops - Beneficial nutrients news November 2008
Silicon protects nursery crops against powdery mildew, drought, salinity and other forms of stress. Researchers regularly report about the benefits of this nutrient to plant species varying from the small perennial Aster to the large deciduous tree Quercus robur. Beneficial nutrients news opens up a lot of these half-forgotten experiments in its November issue. The good two pages with hyperlinks make the literature on this subject more accessible.
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Conference on the ‘interest’ of plants in silicon - Beneficial nutrients news October 2008
Cereals accumulate silicon. At a recently held conference on silicon in agriculture, scientists presented new insights into the genetically controlled processes of uptake and transport in rice, maize, barley and other silicon accululators. Conference presentations on ‘new’ crops like banana and potato and on the use of silicon isotopes as research tool reflect the constantly broadening scope of silicon research. Beneficial nutrients news reports about this conference in its October issue.
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The pros and cons of iodine in plant nutrition - Beneficial nutrients news August 2008
A low dose of iodine can stimulate the growth of plants. Small doses too may enhance the antoxidant content – a favourable effect for both crops and consumers. The growing interest in iodine nutrition however has another reason: food biofortification to control iodine deficiency. Iodine is the feature of the August issue of Beneficial nutrients news. A patent scan and good two pages with hyperlinks to relevant publications offer an extensive review of the state of the art.
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Potato profits from silicon supply - Beneficial nutrients news June 2008
Silicon nutrition protects potato against bacterial diseases. Soil applied silicon suppresses blackleg and soft rot incidence and induces resistance and tolerance to bacterial wilt. Silicon amendments may also improve crop growth under harsh circumstances, researchers conclude from greenhouse experiments with this silicon non-accumulator plant. The June issue of Beneficial nutrients news is devoted to silicon effects in potato and its relative tomato. Two pages with hyperlinks to relevant publications offer an extensive review of the state of the art.
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American researchers examine silicon in ornamentals - Beneficial nutrients news March 2008
It was 1998. In the autumn of that year, an American plant physiologist presented his first results of experiments with silicon in foliage plants at a then held meeting for soil scientists and other agronomists. A decade after this presentation, at least six research programmes and projects covering silicon in ornamentals are ongoing at American universities and research institutes. The March issue of Beneficial nutrients news has an overview of these programmes and projects, supplemented with relevant contact information.
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Mycorrhizae channel silicon to plants - Beneficial nutrients news December 2007
Plants with mycorrhized roots often contain more silicon than non-mycorrhizal ones. Possible effects of the improved silicon status on crop health however are hardly ever investigated. The feature in the free December issue of Beneficial nutrients news gives background information and many hyperlinks to relevant references.
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China is a gold mine of applied silicon research - Beneficial nutrients news December 2007
Unknown, unloved. Only few know the way to the Chinese mine of silicon information. In this way the yield of applied and basic research on silicon in arable and horticultural crops in China remains unnoticed. The free December issue of Beneficial nutrients news has a quick scan of silicon research that has been published the last year in Chinese-language papers.
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Plants utilize nano-sized silicon oxide - Beneficial nutrients news November 2007
Sodium silicate and nano-sized silicon oxide protect Chinese cantaloupe against postharvest rot. Probable both silicon forms have a different mode of action, the November issue of Beneficial nutrients news reports.
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Silicon patent scan - Beneficial nutrients news November 2007
Every year inventors apply for dozens of patents covering silicon in plant nutrition and crop protection. Since the latest update (December 2006), once again a good few patent documents have been published. For a handful examples of these patent publications, click here. The full patent scan has been published in the November issue of Beneficial nutrients news.
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Hormesis – beneficial effects of adverse elements - Beneficial nutrients news September 2007
Low doses of adverse elements can stimulate the growth of plants. Researchers report such so-called hormetic effects from nickel, titanium, uranium and rare earth elements. Unaware of the possible hormetic mode of action, farmers in the Far East utilize the benefits of rare earth elements on a large scale. Hormesis is the feature in the September issue of Beneficial nutrients news; this article gives background information and hyperlinks to relevant references.
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Zirconium improves wheat growth - Beneficial nutrients news September 2007
Hungarian scientists have found that hydroponically grown wheat seedlings profit from a low dose of zirconium chelate. High zirconium doses however are harmful, the September issue of Beneficial nutrients news reports.
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Sodium silicate reduces postharvest fruit decay - Beneficial nutrients news June 2007
Sodium silicate inhibits the growth of pathogens in fruit wounds. Chinese scientists think that combining of sodium silicate with biocontrol agents or food additives will give good fruit disease control. In the June issue of Beneficial nutrients news they inform about planned investigations and finished experiments with sweet cherry, jujube fruit and Hami melons.
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Patent applications cover new uses for titanium - Beneficial nutrients news June 2007
Titanium oxides and other metal oxides protect crops against sunburn damage. The oxides absorb UV radiation and can also reflect this radiation, say German researchers in recently filed patent applications in which they disclose the production and use of titanium oxide powders. The June issue of Beneficial nutrients news also reports about other patent applications that cover new uses for titanium, including a quick patent scan that covers recently disclosed applications of titanium in fertilisers and other agrochemicals.
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Silicon benefits annual ornamentals - Beneficial nutrients news April 2007
The anual flower Zinnia elegans is a silicon accumulator. American researchers conclude this from analyses with several analytical techniques. The silicon-fed zinnia plants contained about 1.2% silicon in the leaves, whereas the nutrient was not detectable in leaves of the non-treated plants. Also some bedding plants accumulate this nutrient, says the April issue of Beneficial nutrients news. Cultivars may differ strongly in silicon uptake. So far the researchers have looked at 23 plant types and species.
Zinnia profits from silicon nutrition. Silicon application to zinnia plants results in a strong reduction of the powdery mildew attack. Silicon-fed plants are also more resistant to harmful insects, so it appears from preliminary experimental data.
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Silicon research profits from new tracing methods - Beneficial nutrients news February 2007
Advanced tracing methods stimulate new silicon research. Recently scientists for instance have adopted new stable silicon isotope measuring techniques. As an alternative to stable isotopes, plant nutrition researchers also suggest a radioactive germanium isotope as a silicon tracer. The February issue of Beneficial nutrients news describes this new development and gives hyperlinks to related literature.
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Silicon alleviates acidification effects - Beneficial nutrients news December 2006
Acidified forests benefit from calcium silicate application. Scientists attributed these effects to calcium. Recent findings however provide new insights into the beneficial role of silicon in forest management. In conifers for instance this nutrient alleviates aluminium toxicity. The feature in the December issue of Beneficial nutrients news gives background information and many hyperlinks to relevant references.
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Selenium enriched food keeps the doctor away - Beneficial nutrients news November 2006
Selenium has health-promoting effects. Selenium fortified foods therefore attract more and more interest from growers and researchers. The boost in selenium related patent publications also reflects the increasing interest in this essential nutrient. Selenium biofortification is the theme of the November issue of Beneficial nutrients news. This issue reports about ongoing projects and efforts that have already been made in order to reach enhanced selenium levels in food crops. The newsletter counts two pages extra with dozens of hyperlinks to recently published literature on selenium research.
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Silicates for carbon dioxide sequestration - Beneficial nutrients news September 2006
Soil liming with silicates is a good way to control the carbon dioxide levels of the atmosphere. A Dutch geochemist concludes this in analogy to a process by which industrial waste acids are neutralized by reaction with the silicate rock material olivine. In the September issue of Beneficial nutrients news, some background information about this process of enhanced weathering has been published.
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Dual purpose silicate fertiliser - Beneficial nutrients news August 2006
Beneficial nutrients news has found the recipe of an unknown, but interesting manganese silicate formulation. The inexpensive fertiliser may be of interest for manganese and silicate nutrition as well. In pot experiments with oat on a manganese-deficient calcareous soil, the experimental formulation performed better than manganese sulphate, Mn-EDTA and Mn-DTPA. The inventor recommends the fertiliser for use on hydroponics. He attributes the efficacy of this manganese silicate formulation to the high stability of the compound, but also silicon may have had a favourable effect on the utilisation of manganese by the plant. Further a more efficient distribution of the nutrient within the plant may have contributed to the superiority of the compound, he supposes. In the August issue of Beneficial nutrients news the prospects of the specific manganese formulation for foliar fertilisation are discussed.
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