Artículos preliminares

URI permanente para esta colecciónhttps://repositorio.inia.gob.pe/handle/20.500.12955/9

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Rye production under acid soils and drought conditions: an alternative for the sustainability of high Andean livestock farming in Peru
(MDPI, 2023-07-05) Carrasco Chilón, William Leoncio; Alvarez García, Wuesley Yusmein; Cervantes Peralta, Marieta Eliana; Quilcate Pairazamán, Carlos Enrique; Vásquez Pérez, Héctor Vladimir
The rye (Secale cereale L.) crop shows a high potential to contribute to the sustainability of high Andean livestock because it supports the agroclimatic conditions and acid soils in the Peruvian Andes. The production of green forage, hay, and grain from the rye crop in acid soils was studied with the use of different levels of phosphorus and potassium fertilization in four local rye ecotypes (CBI-001, CSM-001, CJS-001, and CCE-001). The green forage yield (GFY) ranged from 32.35 to 53.62 t ha−1, dry matter from 6.05 to 8.56 t ha−1, and hay from 7.0 to 10.36 t ha−1; nutritional levels ranged from 9.02% to 13.56% protein and 6.50% to 7.75% ash levels, mainly with differences between ecotypes (p < 0.05). No differences existed between fertilization levels for the number of stems per plant, spikes per plant, and grains per ear (p > 0.05). Also, CBI-001 and CCE-001 were superior with 1868.4 and 1797.8 kg ha−1 of grain, respectively (p = 0.0072); the use of 60 kg ha of nitrogen, 120 kg ha−1 of P2O5, and 80 kg ha−1 of K2O gave higher grain and residue yields. The high nutritional value and yield of the rye ecotypes studied in acid soil conditions and without irrigation can be an alternative for livestock feeding and grain production in the rainy season in the Andes as a dual-purpose crop.
Sustainability of Kikuyu Grass (Pennisetum clandestinum) for the Development of Highland Livestock Farming in the Northern Macro-Region of Peru
(Preprints.org, 2024-10-10) Alvarez García, Wuesley Yusmein; Diaz, Arturo; Becerra, Yessica; Vallejos Fernández, Luis A.; Florián, Roy; Carrasco Chilón, William Leoncio; Cervantes Peralta, Marieta Eliana; Quilcate Pairazaman, Carlos; Muñoz Vilchez, Yudith
The productive sustainability of Pennisetum clandestinum in the Peruvian highlands was evaluated through productivity, growth and chemical composition. The effect of the nitrogen (N2) dose applied to the soil, the use of organic matter and the frequency of cutting or phenological age on the productive yields, chemical composition, plant height and growth rate of Kikuyu were determined. Experimentation was carried out under a randomised block design in divided plots. A multivariate analysis of variance (MANOVA) was used to determine the associated differences in each study factor. It was determined that applying 120 kg of N2 increases the annual protein production to 3 454.53 kg ha-¹. yr-¹, and a crude protein (CP) level of 23.54%, the distance of the live fences influences the biomass production to 19 176.23 kg DM ha-¹ at an interval of 8.5 to 11.5 meters from the base of the cypress tree (Cupressus lusitanica). Organic matter favours the biomass yield of Kikuyu. Although there is no difference in dry matter production between 30 and 60 days of cutting, CP production is higher at 30 (p<0.05). The highest DM production per day is obtained at 45 days, generating a higher biomass accumulation of 21 186.9 kg DM ha-¹. yr-¹. The consideration of Pennisetum clandestinum for dairy cattle is viable, taking into account that the possibility of implementing a plant improvement programme on this species is open, aimed at increasing the composition of the diet in high-production cows due to its high yield and good chemical composition in highland conditions.

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Examinando Artículos preliminares por Autor "Alvarez García, Wuesley Yusmein"