Nutrient content of Atriplex canescens (Pursh Nutt) as a function of soil electrical conductivity
DOI:
https://doi.org/10.59741/agraria.v12i3.513Keywords:
arid environment, in situ digestibility, crude proteinAbstract
The objective of this study was to determine the association between the electrical conductivity (EC) of soil with the nutrient content of Atri plex canescens in northern Zacatecas. Foliage samples of A. canescens were collected from 20 plots of 3 x 3 m in November. Soil samples at the base of this shrub were collected at a depth of 30 cm. Nutrient content of A. canescens was determined, as well as CE of soil. Non lineal regression analyses were performed to depict the association between chemical characteristics and digestibility of the dry matter of A. canescens and degree of soil salinity. Average crude protein of A. canescens was 9.97%, neutral detergent fiber was 51.09% and in situ dry matter degradability ranged between 56.6 a 68.92%. The soil was slightly saline with a CE of 0.4 a 4 Mmhos/cm. It was found that CE influenced little mineral accumulation in A. canescens (r2= 0.22). CE only explained 17% the variability in crude protein content in A. ca nescens. A sligh but significant Ca increment (P<0.01) was observed with the increase of CE (r2=0.41). K levels in A. canescens decreased with the increase of CE. It was concluded that in this particular environment, CE of soil has a marginal influence on nutrient content of A. canescens.
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