Plant care largely depends on their number. If a pair of sunflowers grows on your bed, then caring for them will not be difficult. Timely watering in sufficient quantities, regular weeding is, in fact, and all that you need sunflower to bring a good crop. But when it comes to a large scale of growing this plant, then without fertilizer, using special chemicals, it will be very problematic to do.
If, for example, to consider a large agriculture, the main profit of which are sunflowers, then the absence of the listed methods of care can lead to serious losses. Therefore, in order to get the desired result, it is necessary to patient and conscientiously “feed” sunflower with special minerals and organic fertilizers.
Features of the destruction of weeds with herbicides
Of great importance in achieving high productivity is weed struggle. In order for the sunflower to grow tall, powerful and fertile, it is necessary to regularly destroy weeds around it. As you know, this plant has a fairly slow growth rate at the initial stage of its development.
In this regard, weeds have ideal conditions in order to “feed” with minerals, water and the sun, which were originally intended for sunflower. Such competition leads to the fact that another young plant cannot gain enough strength to grow up with a full -fledged sunflower, so it is depleted and weakens. Do not forget that weeds are a source of pests and many diseases.
The most active weed fight should start in the first month after you sowed seeds. During this period, the sunflower forms an important hindling basket, so the plant simply needs to get enough water and nutrients in sufficient quantities. Note that weeds can seriously harm both during the flowering of seeds and their pouring. Only after the fifth sheet is formed, the sunflower acquires competitiveness to weeds.
It is recommended to use herbicides before sowing and during this process. They must also be brought under harrowing and out. This will be much more effective than mechanical processing, which is accompanied by a serious soil seal, a decrease in moisture content in it, etc. D. The most optimal soil herbicides that are used to prevent the occurrence of weeds are Singent Herbicides. With perennial weeds, it is worth fighting the drug Hurricane Forte.
Features of the fertilizer of sunflower
It is worth paying special attention to top dressing, as there are a number of features that are worth paying attention to. You can achieve high yield results with proper use of fertilizer in the corresponding phases of sunflower development:
The initial phase of development requires a large amount of nitrogen. It is thanks to this element that the future sunflower will have large fleshy leaves and large volumes of seeds. But pay attention to the fact that an excess of nitrogen can lead to a delay in the ripening of seeds. It is recommended to make fertilizer of this species in the form. So it will decompose more slowly and effectively.
You can’t do sunflower and without potassium. The absence of this element will cause a poor condition of the leaves: bends, chlorosis and much more.
The need for phosphorus fertilizers in this plant is low. But it is recommended to introduce it during all stages of growth of sunflower. Phosphorus helps more productively develop the root system, organs of the reproductive system. Also, using this fertilizer will help increase drought resistance.
If you do not want to allow the deformation of baskets, sterility of flowers or completely their absence, then do not forget about the boron. The presence of cracks on the stalking surface, the poor condition of the edges of the leaves may indicate the insufficient presence of a boron.
The most successful moment for making the fertilizer described above is the period. If you use the local-lental method in the spring, the result will be less attractive. This is due to a long period of decomposition of organic fertilizers. With pre -sowing cultivation, it is recommended to make nitrogen fertilizers for sunflower.