Skip to main content
Monthly Archives

April 2018



By Biostimulants, FERTILIZER PRODUCTS One Comment

Barabara Novak is an agronomic engineer and consultant who participated in the European Biostimulant Industry Council (EBIC) that interfaced with the European Commission (EC) with the aim to promote the development of suitable regulatory frameworks for biostimulants and specialty fertilizers. Novak presented a paper at the FERTASA Biofertilizer Workshop held in November 2017 on the European perspective of the development of the biostimulant / biofertilizer concept and definition and its implications for product placement in EU regulatory frameworks. The use of biological products in agriculture and crop chemistry has gained considerable attention in the last ten years, and is now no longer considered as a “fad” of “fly by night” product segment and has evolved into a structural component of the crop chemicals market. They are considered as one of the most attractive investment segments in the crop chemicals industry with forecasted double digit growth for the next ten years. Novak explained that the group of biological plant nutrition products that are referred to as biofertilizers in South Africa  are referred to as biostimulants, metabolic enhancers, phytostimulators, plant elicitors, biogenic stimulators amongst other terms in other countries. The term biofertilizers used in South Africa refers to a specific group of products that are termed as biostimulants in Europe –  biofertilizers are referred to as biostimulants for the remainder of this article. The wide range of terminology and definitions used to describe these products is considered as one of the key barriers for growth of this segment of the industry and has created confusion in the market with negative implications for market development such as a lack of market information and product registries which influences  industry validation which in turn is influences end-user acceptance and creates mistrust.  Novak stressed that possibly the most important outcome is that a science based and industry accepted definition is a prerequisite for the development of a regulatory framework that can distinguish these products from existing legislative product categories. The Development of the European Biostimulant Definition Currently these is no regulatory or legally-accepted definition of biostimulants anywhere in the world including the European Union (EU). Literature reviews indicate that the term was first used in 1997 in a web journal for turf professionals where biostimulants were defined as “materials that in minute quantities promote plant growth”. The use of the words “minute quantities” distinguish biostimulants from fertilizers which also promote plant growth but in much larger quantities. In 2007 the term was first defined in scientific literature as “materials other than fertilizers, that promote plant growth”. The addition of the phrase “other than fertilizer” is significant as an early attempt to explicitly distinguish this class of compounds from traditional fertilizer products. In subsequent years the term has been used to define an even wider range of compounds and has been used as a versatile descriptor of virtually any substance beneficial to plants without being a fertilizer, Plant Protection Product (PPP) or soil improver. Clearly there was a necessity clarify the status of biostimulant products not just…

Read More


By Biostimulants, FERTILIZER PRODUCTS No Comments

For centuries man used rudimentary techniques in his endeavors to fertilize the soil and make crops grow, however it was only after Justus von Liebig  established conclusively that “green plants can be nourished by mineral salts in solution and specified that there are three essential elements for plant growth Nitrogen (N), Phosphorus (P) and Potassium (K)” that the industrial production of chemical fertilizers developed onwards from the 1880’s. By 1888 the French had passed the first laws governing the use of fertilizers which required in particular that the manufacturer indicate the percentage of the nutrients (N, P and K) and their origin which remained in place until the late 1970’s when the rapid development of agriculture and emergence of new products especially fertilizer mixtures made it’s revision necessary. Today there are complex laws governing the manufacture of fertilizers and their use through-out the world. Agricultural research and development has proven extremely successful over the past century increasing crop production ensuring food security for an ever-growing world population through improved genetics, crop protection, the efficient use of fertilizers and advanced understanding of plant and soil chemistry and nutrition. Numerous other factors that influence and benefit plant growth have been identified and used advantageously as “biostimulants” and “biofertilizers”. The benefits of leguminous crops on the soil had been recognized for centuries however in was only in 1901 that biological nitrogen fixation was first discovered and in the 1950’s that research started to make headway. The symbiotic effects of fungi with plant roots was first studied in the 1880’s and the term mycorrhiza was introduced in 1885. The discovery of Plant Growth Substances began with Darwin’s discovery of Auxins in 1880 followed by Ethylene in 1917, Gibberellins in 1926, Cytokinins in the 1950’s and Abscisic acid in 1963. Seaweeds have historically also been used as fertilizers but use declined with the advent of chemical fertilizers. In the 1970’s the beneficial effects of the brown seaweed Ecklonia maxima (kelp) were identified and extraction methods of the cellular content developed; in 1983 the first doctoral thesis on the beneficial properties of its extracts was published. Over the past two decades there has been tremendous worldwide growth and development of the Biofertilizers, Biostimulants and Biopesticides market which is now a fast growing  and lucrative segment of the crop chemicals industry. By definition these products are classified as fertilizers and are subject to  world-wide regulation just like conventional fertilizers. The registration of these products and international law governing their use are however far more complex as in many cases involve the use of living organisms and metabolites which may have environmental implications; they are regulated by Act 36 of 1947 as Group 3 fertilizers and at least 8 other Acts of legislation in South Africa. In February 2016 the Department of Agriculture, Forestry and Fisheries (DAFF) published their guidelines for the registration of Group 3 Fertilizers, these can be accessed on the following link: In November 2017 FERTASA hosted a Biofertilizer Workshop which was open to…

Read More