Multicomponent mineral fertilizers vs. soil abundance after sugar beet cultivation

When choosing a multicomponent fertilizer, apart from chemical composition and mutual proportions between components, agrotechnical factors should be taken into account. When using multicomponent fertilizers, the fertilizer best suited to the nutritional needs of plants and existing soil conditions should be selected from the entire range of available products. Analysis of economic effectiveness of fertilization is also important. The aim of the research was to analyze the impact on changes in the content of macronutrients in the soil after cultivation of sugar beet, resulting from applying the mineral multicomponent fertilizers of Polish and foreign producers. The effect of different doses of applied fertilizers of Belarusian, Russian and Polish production was also analyzed. The experiment was carried out in 2014-2017 in Lipnik. The experimental plant was sugar beet of NATURA KWS cv. Studies compared two factors: 1st factor - 3 multicomponent mineral fertilizers: Belarusian (A), Russian (B) and Polish, this is Polifoska (C); 2nd factor - 3 doses of fertilization (minimum, optimum, maximum, amounting respectively to 2.0 4.0 and 6.0 dt per hectare). Fertilization with multicomponent fertilizers produced by Belarusian, Russian and Polish manufacturers did not change the pH of soil from experiment. In the experiment carried out, there was no diversified effect of multicomponent fertilizers of Belarusian, Russian and Polish origin regarding changes in the content of available phosphorus and available potassium in the soil as well as exchangeable magnesium. The use of different doses of multicomponent fertilizers resulted in a significant increase in the content of available phosphorus and potassium in the soil

Residual impact of two-component mineral fertilizers on the fertility of soil previously cropped to sugar beets

Zróżnicowanie jakości, oferowanych na rynku nawozów dwuskładnikowych różnych producentów polskich i zagranicznych uzasadnia prowadzenie badań dotyczących ich oddziaływania na rośliny i glebę. Celem badań była ocena wpływu rodzaju i dawki mineralnych nawozów dwuskładnikowych na zawartość makroskładników w glebie po uprawie buraka cukrowego. Doświadczenie prowadzono w latach 2014–2017 w miejscowości Lipnik. Rośliną doświadczalną był burak cukrowy odmiany Natura KWS. Dwuczynnikowe doświadczenie polowe przeprowadzono w układzie losowanych bloków. I czynnikiem było pochodzenie dwuskładnikowego nawozu mineralnego (N – 18%, P2O5 – 46%): produkcji rosyjskiej, litewskiej i polskiej (POLIDAP®). II czynnikiem była dawka nawożenia fosforem oraz azotem: minimalna, optymalna, maksymalna – odpowiednio 1,0, 2,0 i 3,0 dt nawozu dwuskładnikowego na hektar. Zastosowano nawożenie potasowe w ilości odpowiednio: 1,25, 2,50 i 3,75 dt na hektar w postaci chlorku potasu. W kolejnych latach (2015, 2016 i 2017 r.) realizacji doświadczenia podczas uprawy buraka cukrowego wykonano te same zabiegi agrotechniczne. Nawożenie nawozami dwuskładnikowymi produkcji rosyjskiej i litewskiej nie spowodowało zmiany odczynu gleby. Zastosowanie POLIDAPU® spowodowało istotny spadek pH gleby. Po zastosowaniu nawozu rosyjskiego zasobność gleby w fosfor pozostała na poziomie średnim. W obiektach z nawozami produkcji litewskiej i polskiej zawartość fosforu przyswajalnego w glebie oceniono jako wysoką. Kolejne dawki nawozów powodowały wzrost zawartości fosforu przyswajalnego w glebie, o 12,9, 15,5 i 20,5%, i nie był on proporcjonalny. W doświadczeniu nie stwierdzono zróżnicowanego działania nawozów dwuskładnikowych produkcji: rosyjskiej, litewskiej i polskiej na zawartość w glebie wymiennego magnezu.The diversity in the quality of the two-component fertilizers manufactured by various Polish and foreign producers and present on the market, justifies research into their impact on plants and quality changes in the soil. The aim of the research was of analyze the impact of mineral two-component fertilizers produced by: Russian, Lithuanian and Polish manufacturers on changes in the content of macroelements, in soil after sugar beet cultivation. The effect of doses of the fertilizers used was also analyzed. The experiment was carried out in the years 2014–2017 in the Lipnik. The experimental plant was sugar beet variety Natura KWS. Two factors were compared in the studies: I factor – 3 two-component mineral fertilizers, Russian, Lithuanian and Polish POLIDAP®. II factor – 3 doses of two-component fertilization (minimal, optimal, maximum), which were 1.0, 2.0 and 3.0 dt per hectare respectively). Potassium fertilization was applied at rates of 1.25, 2.50 and 3.75 dt per hectare as potassium chloride. Fertilization with two-component fertilizers produced in Russia and Lithuania did not change the pH of the soil. The use of POLIDAP® caused a substantial soil acidification. After applying the Russian fertilizer, the soil’s phosphorus fertility remained at the medium level. The introduction of Lithuanian and Polish fertilizers into the soil changed the values of the content of phosphorus available in soil from low to high. Increasing the dose of fertilizers by 50% caused an increase in the content of phosphorus available in the soil, but it was not proportional to fertilizer rate. There were no discernible differences of the two-component fertilizers produced in Russia, Lithuania or Poland in terms of the content of removable magnesium in the soil

Multicomponent mineral fertilizers vs. soil fertility after winter rape cultivation

The subject of the study was an analysis of the impact of multicomponent mineral fertilizers manufactured in Poland and abroad, on changes in the content of available phosphorus and potassium as well as exchangeable magnesium in the soil. The study also looked at the effect of varying doses of multi-component fertilizers produced in Belarus, Russia and Poland. The experiments were carried out in 2015–2017 in Poland. The experimental plant was winter oilseed rape. The use of compound fertilizers of Belarusian, Russian, and Polish production did not have a significant impact on changes in soil pH during rapeseed cultivation. No differences in the effect of multicomponent fertil-izers on changes in the content of available potassium and ex-changeable magnesium were found. In the soils of both experi-ments, increasing the doses of tested multicomponent fertilizers had significant influence on the increase in the amount of avail-able potassium and did not cause any changes in the abundance of exchangeable magnesium in the soil. Generally similar effects of multicomponent fertilizers Belarusian, Russian and Polish origin on investigated soil properties were noticed