Forage yield of African star grass (Cynodon nlemfuensis Vanderyst) at different cut heights

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Miguel A. Sánchez-Hernández https://orcid.org/0000-0003-3201-0898
Gladis Morales-Terán https://orcid.org/0000-0001-9066-4596
Marco A. Rivas-Jacobo https://orcid.org/0000-0003-3356-1499
Sergio I. Mendoza-Pedroza https://orcid.org/0000-0002-8925-3535
César Sánchez-Hernández https://orcid.org/0000-0003-4305-428X
Silvia Fraire-Cordero https://orcid.org/0000-0001-5744-1067

Keywords

Cynodon nlemfuensis, African Star grass, dry matter, forage yield.

Resumen

Objective: To determine the effect of cutting height, season, and year on the forage yield of African Star grass (Cynodon nlemfuensis Vanderyst) in Loma Bonita, Oaxaca, México.


Design/Methodology/Approach: A randomized block design was used in plots divided using a factorial arrangement and three replications. The treatments consisted of the combination of cutting heights, seasons, and years of evaluation with four repetitions. The following variables were taken into consideration: fresh and dry forage yield (kg ha-1), leaf weight (kg FM ha-1), stem weight (kg FM ha-1), dead material (kg ha-1), leaf-steam ratio, and total yield per hectare (kg ha-1). An analysis of variance was carried out and the means were compared using Tukey's test.


Results: The cutting heights did not have an effect on the DM yield. The uniformity cut can be made between 7 and 10 cm. DM performance for the 6 characters evaluated was better in 2018 than in 2016.


Study limitations/Implications: Applying dolomite calcium to increase soil pH, N, P, and K levels under irrigated conditions could improve growth rates and DM production.


Findings/Conclusions: Cutting heights did not have an impact on forage yield. The uniformity cut could be made at a 7-10 cm height. The rainy season had a higher dry matter yield (3,310 kg ha-1) than the dry season (1,902 kg DM ha-1) and the cold front season (1,914 kg DM ha-1).

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