Augļu dārzu agroķīmisko rādītāju raksturojums
2022
RulleRulle, Skaidrīte, Skaidrite
In order for plants to grow and develop well, soil must be present with optimal soil response (for various crops it can be different for species), sufficient organic matter content of substances and at least medium usable for plants provision of phosphorus and potassium. Also important is soil provision with secondary and microelements, however, these are of primary importance for four agrochemical indicators, because if any of will be inappropriate for them, then problems may arise also with the others — in case of inappropriate reaction absorption of nutrients may be impaired, while the organic parts of the soil in composts are concentrated soil nitrogen and sulfur reserves, as well as a large number of other elements that are released by decay by mineralizing, so rotting matter also serves as the reserve of plant nutrients in the soil. In agroclimatic, soil and farming conditions of Latvia, soil agrochemical research should optimally be carried out every five years, but when farming intensively, especially in vegetable crops farms, it is recommended to do it more often. State Plant Protection Service in the period from 2016 to 2020 according to customers demand agrochemical research of soils has carried out in 2,070 farms with a total area of 171,971 ha, including 1481 ha in orchards. Since 2018, research has been carried out every year in a representative manner in a sample group of farms in an area of 5000 ha.
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