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Growth, Nitrogen Uptake, and Nutritional Value of a Diverse Panel of Shrub Willow (Salix spp.) Genotypes in Response to Nitrogen Fertilization.
- Source :
-
Agronomy . Nov2022, Vol. 12 Issue 11, p2678. 17p. - Publication Year :
- 2022
-
Abstract
- Riparian buffers are a practical strategy to reduce N runoff. Shrub willows (Salix spp.) are a well-suited natural means to manage water quality due to dense aboveground biomass growth, diffuse root systems at a shallow depth, and low water- and nutrient-use efficiencies that will maximize uptake. Perennial forage crops in the margins of agricultural lands could provide biomass for fodder. The response of fifty genotypes to a single N level of fertilizer under standard conditions at a very high nutrient loading level (500 ppm N, delivered weekly) was compared with water-only controls. Irrigation with excess N caused greater aboveground growth measured as biomass, stem length, and diameter, as well as morphological properties that varied significantly by genotype, indicating a potential for selection in a breeding program. SPAD was a reliable indicator of the effect of fertilizer on foliar crude protein and showed different effects of fertilizer on N uptake and nutritional value among genotypes. We identified genotypes that display high N uptake and good relative feed value. This intentional design for environmental benefits could have a dual purpose should this potentially nutrient-dense biomass by used as fodder for small ruminants. [ABSTRACT FROM AUTHOR]
- Subjects :
- *NUTRITIONAL value
*WILLOWS
*GENOTYPES
*SHRUBS
*CROPS
*FORAGE plants
*PERENNIALS
Subjects
Details
- Language :
- English
- ISSN :
- 20734395
- Volume :
- 12
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Agronomy
- Publication Type :
- Academic Journal
- Accession number :
- 160137294
- Full Text :
- https://doi.org/10.3390/agronomy12112678