Crop Guides - Carrot
Fertilizer Recommendations for Carrot
Lono – Yield
Lono is our flagship nitrogen fertilizer. Farmers use Lono to greatly improve their yield, establish better root growth and more uniform size distribution. Lono supplies Stabilized Amine Nitrogen to carrots which, unlike conventional fertilizers, focusses growth on the carrot vegetable rather than top leaf growth.
Albina Granule – Quality
Albina is our innovative calcium fertilizer which improves quality, shelf life and firmness of carrots, and also protects against disease and physiological disorders. Conventional calcium fertilizers give erratic results as the carrot is only able to absorb calcium when it is small. Albina supplies calcium in a new way which makes it is easily absorbed by the carrot all season long.
Damu – Bulking
Damu is our specialist boron fertilizer which improves and bulking and yield of carrots, while also safeguarding quality. Damu works by helping the carrot crop to use its energy to bulk up the vegetable rather than force late season leaf growth.
How Our Recommended Fertilizers Work on Carrot
Use Lono To Increase Carrot Yield.
In this section we will look at how Lono can be used to focus growth on the carrot we harvest rather than leafy top growth we discard.
Carrots can take up Nitrogen in three forms: amine (NH2), ammonium (NH4) or nitrate (NO3). The amount of nitrogen taken up by the carrot dictates how quickly the whole crop grows, however, it is the ‘form’ of nitrogen which dictates where the crop allocates this growth.
Nitrate (NO3) makes the crop produce more of the growth hormone ‘auxin’, which are made in the top leaves. Increased auxin production stimulates the carrot to accelerate leaf top growth at the expense of the carrot root. While this does result in slightly higher yields, there is a large amount of growth energy wasted on excessive top growth which could be utilized to increase yield much further.
Conventional amine nitrogen seems like the ideal solution, if the carrot takes up this form of nitrogen, it will produce the growth hormone cytokinin, which favours carrot root growth rather than leafy top growth. However, this is not effective either. When amine nitrogen is used on carrot, small bacteria compete for, and use up the available amine nitrogen and convert it into nitrate. This all happens before the carrot is able to take up even a small amount and results in the crop taking up nitrate anyway. This, like before, results in excessive leafy top growth at the expense of carrot root growth, meaning the farmer does not reach the full potential yield for their crop.
To make the crop favour carrot root growth rather than leafy top growth, we need the crop to take up amine nitrogen. Unfortunately, this is not possible with conventional nitrogen fertilizers.
How do we supply nitrogen in a way which favours carrot root growth?
Levity have developed fertilizer Lono which uses ‘LimiN’ technology. Lono supplies carrot with ‘Stabilized Amine Nitrogen’. This is a unique form of amine nitrogen which is unrecognisable to the bacteria which would usually convert amine into nitrate. This means that nitrogen is taken up by the crop in amine form rather than in nitrate. By helping the carrot to take up amine nitrogen we help it to produce more of the growth hormone cytokinin which favours harvestable carrot root development rather than top leafy growth. This process (known as growth partitioning) helps us to minimise the amount of wasted energy and maximize farmers yields by helping the crop grow in the right place.