Forage maize nutritional quality according to organic and inorganic

Abstract

The research was conducted on a commercial land plot from the ejido Granada, municipality of Matamoros, Coahuila, situated inside the Comarca Lagunera, from April to August 2015, in order to establish the effect of two fertilization sources -organic and inorganic, upon the nutritional quality of forage maize during the spring-summer cycle with a randomized block experimental design. T1= Acadian soil +Acadian foliage (marine algae extracts) and T2= Regional control, with 16 replications. The evaluated variables were the nutritional quality of forage maize and the milk production (L•t -1 dry matter and L•ha -1 ). Due to the effect of the evaluated treatments, statistical differences were registered, both for, nutritional values of forage maize, such as: neutral and acid detergent fiber, non-fiber carbohydrates, total digestible nutrients, total net energy for lactation and for milk production, in favor of organic fertilization. Therefore, it can be concluded that fertilizers of marine origin applied to forage maize increased both nutritional quality of forage maize and milk yield per ton of dry matter and per hectare of this forage.

Forage Yield and Quality Indices of Silage-Corn Following Organic and Inorganic Phosphorus Amendments in Podzol Soil under Boreal Climate

“…According to literature, protein contents in silage-corn vary between 5.2-7.5% [30], whereas, in good quality forage, CP should be more than 7% [62]. AP and CP contents in the present study were >10% in A4177G3-RIB (Figure 4a,b) and were 9% in Yukon-R among five genotypes, which were 36% higher than reported in the literature [27,61,62], and therefore, can be considered as high quality forage genotypes [62]. However, it appears a trade-off between AP, CP and forage production in silage corn genotypes [15,63]; therefore, a strong negative correlation between forage production and AP (r = −0.9), and CP (r = −0.9) was noted (Figure 1c,d), which might be due to N dilution effects [64,65].…”

“…In the present study, we observed significantly higher available protein (AP) and crude protein (CP) with inorganic P compared to organic P amendment (Figure 4a,b). Conversely, Moreno-Resendez et al [27] reported increased protein in forage treated with organic source compared to inorganic fertilizer. According to literature, protein contents in silage-corn vary between 5.2-7.5% [30], whereas, in good quality forage, CP should be more than 7% [62].…”

“…This can further enhance the efficient utilization of abundantly available DMP as a mineral and carbon source, while simultaneously reducing the dependency on synthetic fertilizers, particularly non-renewable inorganic P [23,24]. Moreover, DMP application may enhance mineral uptake and forage yield [26], acid detergent fiber (ADF), neutral detergent fiber (NDF), and total digestible nutrients (TDN) compared to inorganic nutrient sources [27].…”

“…Thereafter, sieved samples (50 g) obtained from each experimental plot were packed in small paper bags and sent to Actlabs or Activation Laboratories Ltd. (Ancaster ON, Canada), a member laboratory of Dairy One Feed and Forage Analyses Laboratory (Ithaca, New York, USA) for quality analyses. Forage quality parameters used in this study were divided into measured (minerals, proteins, fibers), and calculated values (non-fibrous carbohydrates, TDN, NFC, NEL, NEM, NEG, calculated milk production) following analysis by near-infrared reflectance spectroscopy (NIRS, FOSS XDS System, Model 6500 Win ISI II v1.5) [27,[40][41][42]. For measured parameters, briefly minerals in the forage samples (500 mg) were pre-digested for 10 min with 8 mL HNO 3 and 2 mL HCL followed by an additional 10 min with 1 mL (30%) H 2 O 2 using a microwave digestor (CEM System, MARS-6, Matthews, NC, USA).…”

Características productivas de cultivos forrajeros en sistemas de producción de leche, Nariño, Colombia

“…El cultivo de maíz Ica V 305 presentó los valores más altos de FDN y FDA en las L1 y L2 (Cuadro 2 y 3), siendo superiores a los reportados por Reta et al (2010) para primavera y verano (48,8 %; 29,1 % y 56,1 %; 34,6 %, respectivamente). De igual forma, superior a los encontrados por Moreno et al (2017) para FDN y FDA con fertilización orgánica e inorgánica de 53,5 %; 35,9 % y 42,6 %; 27,2 %, respectivamente, cosechado a los 112 días, en comparación con los 235 días en promedio para este estudio, lo que pudo generar los mayores contenidos de fibra. Esta diferencia en el ciclo productivo se relaciona principalmente a la altura sobre el nivel del mar (Moreno et al, 2017), ya que las tres localidades presentaron una altura promedio de 2950 msnm y en la del estudio anteriormente nombrado, fue de 1100 msnm.…”