Author: AGUSTIN DAMIAN NAVA
The study was conducted in the village of Filo de Caballos, municipality of Leonardo Bravo, Guerrero, Mexico, from November 2011 to October 2012, in an orchard of Hass avocado, 5 years old. The objective was to evaluate the treatment of chemical and organic nutrition of avocado trees; fertilizers used were: 50 kg tree of cattle dung (manure); 200-100-200 kg ha-1 of N-P-K (edaphic) and 30-10-15.30 kg ha-1 of Ca-Mg-B (foliar). We found that in buds, treatment manure + edaphic + foliar (41 shoots/branch) was better than treatments manure + edaphic (19 shoots/branch), leaf (9 shoots/branch) and the control (21 shoots/branch). And with 17 fruits, manure + treatment + foliar edaphic significantly exceeded the edaphic + foliar treatments (6 fruits), leaf (1 fruit) and the control (3 fruits). The manure + foliar treatment had the highest length (16 cm) of the main shoot, beating the treatment of manure + edaphic (7 cm) and leaf (9 cm). The edaphic + foliar treatment (75 cm2 ) had higher leaf area than control (65 cm2 ) and had the highest fruit weight 2.62 kg with 10 fruits, which was significantly higher than the control (1.51 kg 10 fruits).
Objective: To determine optimum and suboptimal areas for the establishment of plantations of Agave angustifolia Haw,
in Guerrero, Mexico. Design/methodology/approach: A collection of 139 specimens of A. angustifolia was carried out, obtaining for each specimen phenotypic, agroclimatic and agroecological data. The information of 30 specimens of herbarium was consulted. Interviews were conducted with the representatives of the state council of mezcal in Guerrero, the company Sanzekan Tinemi and Mezcalli del Sur, to complement the information of the areas. A database was created where the information of each copy was included, as well as the information obtained from the interviews. Criteria for selecting potential areas of A. angustifolia were defined, after which a Geographic Information Systems (GIS) was constructed, generating mapping areas with agroclimatic and agro potential, wherein the optimal suboptimal and marginal areas for the establishment of A.