Not only does the slow release nature of the Guano Gold product work well over the entire season, it also contains zinc for the crop as well as the other nutrients. The problem with that is that you can have instances where it ends up tying up zinc in the soil so you run into problems with zinc deficiencies. He said the majority of synthetic P products have large rates of water soluble P. Mount Gambier, SA For the broadacre croppers, Guano Gold works really well in paddocks where they have had issues with nutrient tie-up. Agronomically, it’s a good product in any setting, not just for organic producers. These figures compare very favourably with something like a single superphosphate product. A product like Guano Gold has 12pc P, whereas Guano Sulphur Gold has 10.5pc P, obviously with additional sulphur. Ord River WA irrigator David Menzel-Barradale The problem with many organic fertilisers is that they have very low rates of nutrients, meaning you need to put out high rates.
Supercal calcium silicate fertilizer skin#
WHAT OUR CUSTOMERS SAY Being so far away from our markets, durability is critical and the Silica is really good in terms of hardening up the skin and making the melons better to transport. So to conclude in simple terms, silica and calcium used together, such as is available in seabird Guano Gold®, increase the plants silica structure and increases tolerance to biotic and abiotic stresses but doesn’t effect available calcium, however enhances the flow and movement of calcium at critical times such as seed or fruit set. JIAN FENG MA and EIICHI TAKAHASHI commented that “This might mainly result from a decreased transpiration rate caused by increased Si.” Secondly it was shown that “Silica uptake was not affected when the Ca levels were increased” this indicates that by having adequate levels of both silica and calcium will result in increased silica structure in the plant and more available calcium in the plant. It logically follows that increased available silica reduces the distance calcium needs to move in the plant (long flow) and also silica due to its placement and structure reduces evapotranspiration (drought tolerance). If transpiration is affected by excessive evapotranspiration (elevated temperature and water stress) then less calcium is available to increase both yield and fruit or seed quality. Calcium is required by the plant in fruit and grain set. The movement of calcium in the plant is relative to transpiration rate, increase transpiration (movement of water) slows down calcium movement. It could be drawn from this that the addition of the silica with the calcium leaves more calcium available for metabolic functions in the plant as the silica forms silica bodies in the leaf blades. It concluded that increased silica resulted in reduced calcium in the shoots and developing leaves. The results showed that even if calcium levels where applied in field trails at 6.5 times the level of silica, silica was still significantly present in the flag leaves of cereals. The theory behind the testing was to show that the plant would use silica as a preference in physical structural development instead of calcium. JIAN FENG MA and EIICHI TAKAHASHI from the Kyoto University in Japan used soft X-ray irradiation for detection of Silica bodies, they tested shoot and leaf from plants treated with high calcium and low silica, low calcium high silica and then equal amounts of calcium and silica. So, what are the benefits of calcium and silica? Rather than look at each element, let’s look at how they interact. Generally, if the silica level is low then the phosphorus available, in terms of citric verses non-citric soluble, will be low. Adding the calcium percentage to the silica percentage is a good test of how well the Guano Gold® you are going to buy is going to perform. However, when looking at Seabird guanos we need to look beyond the P % and focus a little on the calcium and the silica and how these elements work together and interact.īy weight, calcium and silica in a good quality Guano Gold® make up over 50% of the product.
Then the second question of how available is it and, what form is this phosphorus? With seabird guanos the phosphorus has a higher citric soluble phosphorus rate than non-seabird guanos that are higher in non-citric soluble phosphorus. When farmers think of guano products, they focus tends to be on guano as a phosphorus source.
© Copyright in this work is owned by Guano Australia Pty Ltd. Discover the importance of combining silica and calcium.
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