Gestion de la maintenance industrielle ESA-OFPPT-PDF
Data
The
container
The
container in addition to used in the creation of plants to date, is the
polyethylene bag and to a lesser extent the clod.
Although it
has a number of drawbacks, the sachet has made it possible to carry out
thousands of hectares of reforestation.
If certain
precautions are taken; these disadvantages can be minimized; and this
specialist to replace it with a rigid-walled container which seems to be the
most suitable for producing quality plants.
Watering
The watering
is intended to maintain lastingness, in the standard prospected space the root
system, the quality of water necessary for the plant.
Paradoxically,
watering is one of the focuses that must be relentlessly controlled. There is
often a heterogeneity in the dissemination of water at the level of the
breeding grounds, with overly irrigated areas and other deficits. The use of
sprinklers (sprinkler) does not provide nursery managers with changeless
control
Thus the
daily water supply is carried out in several times so as not to exceed the
water retention capacity of the culture substrate and not to cause the
permeation of the nutrients.
Watering
should be done outside the hottest hours of the day to avoid leaf burns.
Watering
frequencies should be high during the sowing period, the seeds should always
have enough moisture to trigger the germination process. Often the desiccation
of the seeds, standard insufficient watering during this period can lead to low
rates of emergence, which are often due, wrongly moreover, to the quality seeds
(germinative capacity).
From May,
for softwoods, and from September for hardwoods, watering can be reduced
gradually for:
- limit the
aerial growth of plants;
- allow the
seedling of the plants (lignification of the stem and twigs)
- favor the
accumulation of carbohydrate reserves in the roots (better repeat rate with
manor).
Bioclimates:
ideal semi-arid in warm and temperate winter; overflows into the subhumid floor
and into the arid coast.
Soils:
species indifferent to the nature of the soil; is absent from hydromorphic
media.
Biology:
rejects strain.
Use: red
wood with grain blade, used for cabinetmaking and marquetry. Creation of
sandaraque gum.
3.Ceratonia
siliqua L.
Carob tree,
Kharroub.
Family:
Legumes, Césaalpinioïdées
Botanical
depiction: evergreen tree up to 15 m tall. Gray bark cracking in irregular grid
pattern with age. Very small, pubescent light gray buds. Compound paripinnate
leaves comprising 4 to 10 broadly oval leaflets, with full margins, often
indented at the top, green glabrous above, in addition to clear, sometimes
brownish, below. Species in addition to often monoecious. the flowers are
grouped in axillary clusters, null corolla, 5 tiny sepals, very noticeable
nectariferous disc. Male flower 5 stamens, female flowers a short, curved
pistil. Flowering: August-October. Organic product; pod elongated and
flattened, pulpy, 12-20cm long, containing 12-16 brown, shiny seeds. Fruit:
July-August of the year following flowering.
Bioclimates:
superior arid to superior semi-arid, hot to temperate variety.
Soils: often
superficial, red soils, encrusting.
Use: the
gusses (carobs) have a great fodder value (1 kg = 1U.F) and are used in the
manufacture of feed.
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