Do you want higher yields and better nutrient utilisation? Would you like to improve phosphorus release by up to 20%? Would you like to supplement nitrogen, calcium and magnesium at the same time? Would you like to lime your soil? Would you like to improve the structure and water absorption of your soil?
If your answer is yes, then use Green Max.
Nitrogénművek has over 90 years of experience in manufacturing nitrogen fertilisers. We have developed a special fertiliser for soils with acidic PH, low in calcium and magnesium, and for calcium and magnesium-demanding crops. That is Green Max.
Why was it so urgent to develop Green Max?
More than half the arable land in Hungary is acidic (pH<6). It cannot stay that way. The release and utilisation of nutrients is already limited at a pH level lower than 6. In that event, only up to half of the phosphorus is utilised. Is it worth stopping soil acidification? There is no question about that. Soil acidification is a precursor to desertification. In Hungary, that is one of the most significant soil degradation factors, potentially affecting the largest area. Acidic soils not only limit nutrient uptake, the deteriorating soil structure causes cultivation and rooting difficulties, standing water, stagnant water, insufficiently aerated soil, root suffocation, inhibited root growth, reduced soil life, unhealthy soil, calcium deficiency and yield loss. Acidic soil can absorb and retain less water, exacerbating the adverse effects of an already increasingly extreme climate. Over the past 30 years we have gradually acidified our soils.
How did we get to this point?
The main reason is the ill-considered fertilisation concept of past decades that we can, and must, change. It takes only a decade or two, and not centuries, to destroy a good productive soil with acidifying fertilisers. With sustainable agricultural production in mind, we need to stop the acidification process that has been caused through the use of acidifying fertilisers and the failure to replace calcium. The real culprits are urea and ammonium nitrate fertilisers. Using them only makes the soil worse, acidic, and neither are they effective, because they are not right for our climate. Their use in drought is dangerous. Much of it evaporates, is blown away by the wind, and the nitrogen is simply lost.
Do you want to achieve a bigger crop? Better nutrient utilisation? Would you like to improve phosphorus release by up to 20%? Would you like to supplement nitrogen, calcium and magnesium at the same time? Would you like to lime your soil? Would you like to improve your soil structure and water absorption capacity?
The solution is the unique combination of nitrogen and soil conditioners in Green Max.
159 kg/ha nitrogen, 161 kg/ha calcium (CaO) and 116 kg/ha magnesium (MgO) per tonne of active substance. Finely ground dolomite powder and a huge reactive surface thanks to the 40µm particle size.
Fertilisers with an acidifying effect are often characterised by their lime index. Accordingly, the lime index of ammonium nitrate is 60 and that of urea is 80–100. In other words, the soil acidifying effect of 100 kg of ammonium nitrate or urea can be counteracted by the simultaneous application of 60 or 80–100 kg of CaCO3. The lime index of Green Max is -30. On acidic soils it is equivalent to 300 kg/ha lime fertiliser.
We have tested Green Max against urea and inhibitor urea in regard to winter wheat and maize. The results showed that, in winter wheat, Green Max increased yields by 970 kg/ha compared to urea and 520 kg /ha compared to inhibitor urea. Green Max performed better on calcareous soil, too. In that case, Green Max generated 2,150 kg/ha greater yield than urea and 1230 kg/ha greater yield than the inhibitor urea (Figure 1).
Figure 1: Yield advantage of GreenMax over urea in wheat (t/ha)
Our experiments in maize led to similar results. There, Green Max gave 750 kg/ha more compared to urea and 1350 kg/ha more compared to inhibitor urea. On calcareous soil, Green Max generated 1,570 kg/ha greater yield than urea and 1,000 kg/ha greater yield than the inhibitor urea (Figure 2).
All that proves that, on acidic soils, shifting chemistry closer to neutral, and on calcareous soils the better supply of calcium and magnesium, resulted in higher yields, which provided additional revenue per hectare of wheat of 31,200 – 129,000 HUF/ha and for maize of 38,250 – 80,070 HUF/ha, depending on the production site.
Figure 2: Yield advantage of GreenMax over urea in maize (t/ha)
Rapid utilisation. Perfectly spherical granulated fertiliser. Unique quality. Its calcium and magnesium content covers the needs of any crop, even the case of high yields. Immediate and durable effect.
The soil conditioner content comes from domestic mines. This is not industrial waste or a manufacturing by-product. Real Pannonian sediment. The active ingredient in Green Max soil conditioner is alkaline. Very suitable for acid soils to increase the pH of the soil, which is already visible in the first year of application. Other calcium-containing substances that are neutral (gypsum, anhydride, anhydrite) do not improve soil pH.
Don't risk the Earth that we have borrowed from our grandchildren!
Use Green Max!