Italian Ryegrass (Lolium multiflorum Lam.) Fiber Fraction Content and Dry Matter Digestibility Following Biostimulant Application against the Background of Varied Nitrogen Regime

Abstract

An experiment was conducted to determine the effect of an application of biostimulants, against the background of varied nitrogen regime, on the share of neutral detergent fraction (NDF), acid detergent fraction (ADF), and acid detergent lignin (ADL) in the crude fiber fraction of Italian ryegrass as well as its digestibility. A field experiment was arranged as a randomized subblock design (split-plot) with three replicates at the Siedlce Experimental Unit of the University of Natural Sciences and Humanities in Poland in 2013. The following factors were examined: type of biostimulant: Algex, Tytanit, Asahi SL and a control; nitrogen application rate: 0 (control); 120 and 180 kg·ha−1. There were confirmed positive effects resulting from an application of biostimulants in Italian ryegrass cultivation. There was confirmed the assumed hypothesis that an application of both natural and synthetic biostimulants will make it possible to improve the feeding value of grasses by reducing the fiber fraction. Particular attention should be paid to the biostimulant Algex whose application in Italian ryegrass cultivation produced the most beneficial response in terms of the share of NDF, ADF, and ADL fractions, which resulted in the greatest increase in the plant dry matter digestibility. Increasing nitrogen rates significantly reduced the quantity of analyzed fiber fractions, and increased grass digestibility.

Plant Material as a Novel Tool in Designing and Formulating Modern Biostimulants—Analysis of Botanical Extract from Linum usitatissimum L.

“…In addition, their increased levels as an effect of exogenous application in plants indicate improved functioning of the defense system against biotic and abiotic stresses [87]. This is in agreement with the results reported by Godlewska et al [77,88], who noted that the application of plant extracts induced a change in the fatty acid profile in cabbage and celery root crops [79]. A study on the application of garlic extracts in pepper cultivation conducted by Hayat et al [28] demonstrated that the extracts mitigated lipid peroxidation and thus prevented the formation of oxidation products inhibiting the activity of membrane enzymes and transport proteins.…”

Time-Dependent Change of Plant Nutrients in Italian Grass (Lolium multiflorum) after Foliar Fertilization

“…Algex biostimulant to Italian ryegrass produced the most beneficial response in terms of the share of NDF, ADF, and ADL fractions in the plant dry matter. Increasing nitrogen rates significantly reduced the quantity of analyzed fiber fractions, and increased grass digestibility [11].…”

Biostimulants in the Production of Forage Grasses and Turfgrasses

“…Effective strategies are needed to prevent excess accumulation of mineral nitrogen (N) in soil [5]. There are reports suggesting that it is possible to replace, at least in part, the application of nitrogen fertilisation with the application of biostimulants to forage grasses [6]. The use of N fertilisers should also be reduced to cut nitrogen oxide emissions [7].…”