Impact of green manure and straw on biogenic elements leaching in Luvisol
- 1 Lithuanian Research Centre for Agriculture and Forestry, Voke Branch, Lithuania
The paper presents summarized results of lysimetric experiments intended to determine the impact of green manure crops and straw on chemical elements leaching (N, K, Ca, Corg) and of atmospheric precipitation infiltration in sandy loam Luvisol. Lysimeter surface area is 1.75 m2, the test soil layer is 0.60 m. It was determined that under climatic conditions of Lithuania, cover crops for green manure reduce atmospheric precipitation infiltration in sandy loam soil during autumn, and the effects of nutrient leaching depend on the plant species. Fabaceae plants clover (Trifolium pratense L.) stimulate nitrogen leaching, while Poaceae orchard grass (Dactylis glomerata L.) and Brassicaceae fodder radish (Raphanus sativus L.) lessen it. Incorporation of green manure biomass does not alter potassium and calcium leaching, but substantially reduces the organic carbon leaching.
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