Why wait for the return to the office, when more information can be obtained directly in the field? Some of the programs described below work on the smartphone «independently», and some of them are in addition to a more complex system of several devices.
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Early varieties use mineral fertilizers less efficiently than later ones, which is associated with a shorter growing season. It is also important to remember that when watering, the need for fertilizers increases, as water contributes to the movement of minerals below the growth zone of potato roots.
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For the operation of this system, it was necessary to rethink the structure of all the main components of spraying, the operation of the pumps and the principle of mixing the herbicide. The main advantage of the Blue River is the introduction of plant protection products up to a centimeter accuracy. This is what allows to reduce the consumption of working fluid and money.
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On soils of light particle size, the permissible pH values are 5.6 - 5.8, but an increase in buffering properties is required, by the introduction of organic and phosphate fertilizers. Beets do not grow well in areas where the depth of groundwater is less than 60 cm. Excessive moisture inhibits the growth of root crops and is the cause of their decay.
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The vegetative period of flax is 70-80 days. The root system is poorly developed and not very actively extracts nutrients from the soil. For its cultivation, it is important that easily accessible forms of minerals are present in the soil and the N: P: K ratio is precisely observed, without an excess of nitrogen.
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Rapeseed takes more nutrients from the soil than cereals, especially phosphorus. It responds well to the aftereffect of organic fertilizers that have been applied under the precursor. A full dose of phosphate and potash fertilizers for rapeseed should be applied after harvesting the precursor for the main treatment.
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There are three stages in the rate of assimilation of nutrients. The first one - from germination to basket formation, when the rate of phosphorus assimilation is increased, moderate - nitrogen and potassium. The second is from the beginning of the formation of the basket to the beginning of flowering. Increased rate of absorption of all three minerals. The third - from the beginning of flowering to the beginning of ripening. Increased absorption of potassium and normal - nitrogen and phosphorus.
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The rice is very demanding to the quality of the soil, since it has an underdeveloped root system, which penetrates the soil by a maximum of 60 cm and a high transpiration coefficient of 400-800. It grows well on soils of heavy particle size distribution. The optimum pH for rice is 4-6.5.
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Like other grains, buckwheat needs some mandatory starter phosphorus application (20 kg/ha) before sowing, as this mineral is necessary for growth and root formation. Its deficiency also causes the death of part of the inflorescences.
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The absorption of minerals is uneven. 80% of the total potassium that the plant will need is absorbed from the soil during the first growing season, therefore, the farmer must ensure that it is present in the soil. The remaining elements will be predominantly acquired in the time interval from the ejection phase of the panicle to the milky ripeness of the grain.
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