Publication Date
1993
Description
Growth pattern, yield and forage productivity of irrigated Setaria sphacelata var. splendida under mediterranean conditions were studied under 3 cutting frequencies, 14, 28 and 56 days, and without cutting. Increases in cutting frequency had a detrimental effect on yield and forage productivity. Higher total biomass production (1.6S8 kg DM/m2), crop growth rate (21.S g/m2/day), LAI (4,8) and radiation use efficiency (1.1 g DM/MJ) were observed at S6 days cutting interval. The highest biomass production (3,295 kg DM/m2) was found with uninterrupted growth. Biomass production at 56 days interval was similar to that found with maize and sorghum but forage productivity (0.979 kg DDM/m2, 0.175 kg CP/m2 and 13.934 MJ MB/m2) was higher. A reduced cutting frequency is suggested to maximise forage productivity.
Citation
Tenreiro, P C., "Evaluation of Setaria sphacelata var. splendida in Mediterranean Irrigated Conditions. II. Effect of Cutting Frequency on Growth Pattern and Yield" (2024). IGC Proceedings (1993-2023). 5.
https://uknowledge.uky.edu/igc/1993/session10/5
Included in
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Evaluation of Setaria sphacelata var. splendida in Mediterranean Irrigated Conditions. II. Effect of Cutting Frequency on Growth Pattern and Yield
Growth pattern, yield and forage productivity of irrigated Setaria sphacelata var. splendida under mediterranean conditions were studied under 3 cutting frequencies, 14, 28 and 56 days, and without cutting. Increases in cutting frequency had a detrimental effect on yield and forage productivity. Higher total biomass production (1.6S8 kg DM/m2), crop growth rate (21.S g/m2/day), LAI (4,8) and radiation use efficiency (1.1 g DM/MJ) were observed at S6 days cutting interval. The highest biomass production (3,295 kg DM/m2) was found with uninterrupted growth. Biomass production at 56 days interval was similar to that found with maize and sorghum but forage productivity (0.979 kg DDM/m2, 0.175 kg CP/m2 and 13.934 MJ MB/m2) was higher. A reduced cutting frequency is suggested to maximise forage productivity.
