The main plant mineral nutrition balance on using ecological fertilizers

Abstract

The experiments were performed in stationary cylindrical lysimeters, which were filled with soil typical of the Eastern Lithuanian region: sandy loam and loamy sand soil (Haplic Luvisol). In the experiment, the main aim was to investigate the balance of nitrogen (N), phosphorus (P) and potassium (K) in the sandy loam and loamy sand Haplic Luvisol and to evaluate their effectiveness and suitability for the light texture soil and agricultural crop harvest in organic agriculture. It was found that, in general, during the three years of the experiment, the balance of N in the sandy loam and loamy sand soil was negative, but fertilization with organic sapropel showed the positive results: less N leaching losses content, compared to other organic-organic fertilizers. Fertilization with cattle manure did not ensure the P positive element balance, in both types of soils, due to a small amount of P in the fertilizer and a high accumulation in the yield. The amount of potassium added each year with NPK fertilizer ensured a positive element balance only in the sandy loam soil.

Influence of the storage duration on the health promoting tyrosine, tryptophan, and total phenolics in potato tubers

“…After planting, the potato rows are loosened twice every 7 days with rotary hoes. In the case of organic farming, 60 kg•ha -1 of nitrogen (Provita, Germany), 60 kg•ha -1 of phosphorus (phosphorite powder), and 90 kg•ha -1 of potassium (Patentkali -potassium and magnesium) were inserted at planting time (Burakova et al 2020). Potatoes were twice harrowed after being earthed up.…”