The research was conducted in the area of influence, "Tezcutzingo-Metecatl" in the town of Texcoco, State of Mexico with Ammi majus species that exists in this area (^{Pulido-Salas and Koch, 1988}). It belongs to the Apiaceae family (alt. Umbelliferae) and is known by the common names of lace and foam sea. It is native to Eurasia and introduced in America.

It grows from about 20 cm to a little over a meter; flowers from May to July (^{CONABIO, 2009}), but with good soil conditions, flowering can be extended to early winter.

Although it has ornamental potential, current research has focused on its medicinal properties, due to a significant source of coumarins and furanocoumarins, known for its healing effect on various skin conditions in humans and their fungicidal and bactericidal effect on plants (^{Ojala et al., 2000}; ^{Królicka et al., 2006}). Most studies were performed in vitro cultures (^{Królicka et al., 2001}; ^{Deepshikha et al., 2002}; ^{Staniszewska et al., 2003}), and some aerial plant parts (^{Hamerski et al., 1990}; ^{Nasser, 1998}).

The investigations include ways to induce biological synthesis and various methods to increase its extraction into in vitro grown plants (^{Staniszewska et al., 2003}). We studied it with tissue sprouts Ruta graveolens, also important as a source of natural coumarins (^{Sidwa-Gorycka et al., 2003}). Investigations include ways to regulate the biosynthesis of coumarins with natural catalysts (^{Hamerski et al., 1990}; ^{Vidal-Castro, 2012}).

Furthermore, although the function of residues in substrates is mainly supplied, plant nutrients and improve the physical and microbiological conditions (^{Ruiz-Bello, 2012}), other important aspects are decreasing: the accumulation of waste in the environment, the use of industrial fertilizers and the exploitation of natural peat deposits (peatmoss).

The disadvantages of waste as a potential source of toxic substances associated with diseases or pathogens, can reduce or eliminate through composting the process (^{Kuter et al., 1988}; ^{Schwarz et al., 2009}); however, limits its use in the production of nursery plants and potted. The benefits of using the waste is not as obvious to the general public, as shown by ^{Yue et al. (2011)} who show that it is more important to the public that, the plants are produced in their locality and with with organic inputs. We have investigated the response to compost a wide variety of ornamental, with positive results; although in some species the compost does not provide all the nutrients needed (^{Rodríguez-Muñiz, 1998}; ^{Papafotiou et al., 2004}; ^{Ruiz-Bello, 2012}) or have negative effects (^{Erdogan et al., 2011}; ^{Ruiz-Bello and Martínez-Villegas, 2011}).

The residues can be used in solid or liquid form, collecting leachate or developing solutions based compost (^{Ahmed et al., 2011}). Tagetes patula substrates formulated with compost and perlite, showed no significant differences in the period of emergence 3, 7, and 9 days. However, the maximum cotyledon expansion size differences (p< 0.01) positive effect of compost. The differences became more evident as the culture growth (^{Valenzuela et al., 2003}). These authors found that Antirrhinum majus and Viola xwittrockiana had good germination and emergence in substrates with 25% combined with 75% compost, peat and substrates combined with 33% compost with peat and perlite (33% of each ) while the germination and emergence of Calendula officinalis was better substrates with higher percentages of vermicompost, 50 and 75%.

^{Muñiz-Rodríguez (1998)} found in Impatiens and Spathyphillum that solid waste from sugar cane, but they supplied enough nutrients and induced the production of branches, its application did not produce plants more developed compared with other commercial fertilizers. In Camellia japonica L. It was possible to reduce significantly the amount of plant growth regulators by mixing compost of pine bark substrates (^{Larcer et al., 2011}). ^{Schwarz et al. (2009)} used garden waste, sewage sludge and wood ash and evaluated their use as substrates in Petunia sp. and Tagetes sp. Peat improved some physical and chemical properties of the substrates. However, the composting yard waste was the most suitable for these species.

^{Vendrame et al. (2005)} had no response on Angelonia angustifolia , Coreopsis grandiflorum and Scutellaria costaricana by the application of compost, peat, garden waste and algae, while Pseuderanthemum laxiflorum dry matter increased with the application of bio -solids and waste garden and decreased with treatment containing algae.

^{Papafotiou et al. (2004)} investigated industrial olive oil solid waste composted, in order to replace the peat substrate poinsettia production. They observed that as the compost was increased and decreased the peat substrate, plant height and number of bracts decreased. Substitution at 50 and 75% caused delayed pigmentation of the bracts, which did not happen with 25% substitution. The root dry weight decreased significantly with only 75% substitution of peat for compost.

In Hibiscus sabdariffa L. mixtures were grown in sandy soil with compost, better results were obtained in various features of vegetative growth, as well as foliar sprays were made with leachate (^{Ahmed et al., 2011}).

Under the assumption that, the compost increases dry matter production and affects the absorption of micronutrients in Ammi majus, the objective of the study was to determine these two parameters, in order to study the species under controlled conditions to establish it in the botanical garden "Metecatl", educational purposes and its use as an ornamental species.

We used compost produced from mixed grasses; mainly with cattle manure in an approximate ratio of 3:1. The treatments included consisted of a mixture soil: compost 1: 1, compared with soil without compost; two proportions of "perlite" (20 and 30%) and a dose of 20-20-20 commercial fertilizer (Table 1).

The plants were obtained by seed. At two months of age were transplanted into pots containing treatments. Three months after transplantation were cut close to the very ground, dried at 71 °C, weighed and ground for analysis of Fe, Cu, Mn and Zn micronutrients. PH, electrical conductivity (EC), organic matter (OM) and cation exchange capacity (CEC) of the substrates were analysed in each treatment to see if the compost was inducing changes.

The results (Table 2) show that, the dry weight ranged from 11.17 to 17.29 g, with the lowest and statistically equal to those obtained in treatments with pure soil and mix soil: compost. The highest yield was achieved with 20% added with "perlite" statistically equal to 30% treatments "perlite" and fertilizer (Table 3) mixture.

Statistical analysis (Table 3) shows that the compost had no effect on dry matter production, but in the pH, EC and CEC of the substrate. The treatments in the pH rose and fell CE, both significantly, due to the compost, were those that produced the highest yields. This finding verifies the assumptions that the compost induces changes in the substrate and the plant responds to not only the supply of nutrients, but also the conditions of the substrate induced by the addition of compost (^{Ruiz-Bello et al., 2012}).

Differences in CIC, although significant, showed no relation to the dry matter yield. There were no significant differences in the content of organic matter.

There is no reference of the content of these micronutrients in this species with deficiencies manifested, although no visible signs of any of them were presented at all; this indicates that the substrate supplied enough of the four elements.

The only one who showed significant differences (α= 0.05) between treatments was Mn, whose absorption seems to be favoured by the presence of compost in treatment 2, and pH decrease induced by fertilizer treatment 5 (Table 4).

The hypothesis that the addition of compost increases the yield of Ammi majus, since differences between the dry matter produced in soil with and without compost are significantly different, being higher that obtained with soil supplemented with compost. It is noteworthy that, the effect was not directly on the plant, as it was observed in this experiment, the effect on the ground is due to the changes induced by the compost into the soil and not necessarily on the traditional nutrients.