Producción de forraje orgánico de dos especies promisorias Arrhenatherum elatius y Stipa plumeris en la provincia de Tungurahua

Abstract

In Tungurahua province, Ambato canton, Pilahuin Parish, LLangahua community, Which is located at 3300 meters above sea level,the, adaptation and persistence of the Arthenatherum elatius and Stipa plumeris were evaluated in plost with purpose of producing organic forage, under descriptive statistics based on different experimental measurements. The most relevant results in the first cut were: Arrhenatherum elatius, 45 days, plant height of 65,42 27.10 cm; stems/ plant: 90 +0,89; leaf / stem: 3,92: baseline coverage: 14,14 %; aerial coverage: 24,18 %. In the Stipa plumeris, 45 days after the recorded heights were: 61.67+5,94; stems/plant: 91,121,47leaf / stem: 3,58; basal cover: 15,07%; aerial coverage: 19,30%. In the second cut in the Arrhenatherum elatius, these heights were reported: 78 + 6,54; stems/ plant : 89,78 + 1,39; leaf/stem: 4.08 ; baseline coverage: 12,67% ; aerial coverage: 23,78 Production of green fodder in Arrhenatherum elatius 1,28 + 0,36 t/ha / cut; in MS 0,30 + 0,09 Tn/ha/cut ; Stipa plumeris reported a green fodder production of 2,49 + 1,51 Tn/ha/cut; in MS 0,57 +0,35 Tn/ha/cut. Pesticide Residues Organochlorine: pp-DDD of 6.8x10 -4 mg / kg, pp -DDE of 4.7*10-4 mg/kg. Organophosphate pesticides: Acephate, Chlorpyrifos, Diazinon, Dimethoate, Ethyl Parathion, Malathion Methamidophos , Monocrotophos , Profenofos , Trichlorphon in quantities <2x10-4 mg/kg, which are considered minimal. it is concludede that Arrhenatherum

elatius easily adapted to the environmental conditions of the Llangahua area, while Stipa plumeris not survive alone or in association and it is evidenced its low power competitive with weeds because of its slow growth.