Bygga klösträd sisal
Rep till klösträd
Sisal Agave sisalana Perrine is a monocotyledonous crop from which leaf fibers are extracted without retting. It is a naturally occurring pentaploid hybrid. Sisal originated in central America and Mexico where it occurs as a wild plant, as well as in cultivation. Sisal requires warm weather and full sunlight.
Sisal Plant – Cultivation, Processing and Uses
It is grown in areas with an annual rainfall of mm. Excessive rainfall is harmful and the plants can not tolerate waterlogging. Sisal is grown from sea level up to m. Heavy clay soils are not suitable, but it can be grown on clayey soils provided that deep drains are made to drain out the excess water from the field. The root system is adventitious, each bearer root arising from a leaf scar at the base of the bole.
The rosette of leaves is sessile, linear-lanceolate, attaining a length of 1.
Klöspelare extra sisalrep (50 meter)
A sisal plant, on average, produces about leaves during its lifetime; after which it sends up a flowering axis or pole nearly 9m tall, branching in the top 1. Each bulbil is a plantlet consisting of a meristem, reduced leaves, and rudimentary adventitious roots. A pole may produce as many as bulbils. Suckets grow from rhizomes, which are produced from the buds in the axils of leaves below ground level.
Bygga eget klösträd
Sucker production begins about a year after planting and one plant can produce as many as 20 suckers during its life span. Suckers were formerly frequently used as planting materials but the modern practice is to use bulbils for propagation. The bulbils are first raised in nurseries for about months before they are planted out in the field. Before transplanting, all the transplants are graded according to size in order to obtain a uniform stand of plants.
Planting is done at a spacing of 2. The planting depth should be Double row planting makes mechanized cultural practices and harvesting easy. It is important to weed during the first years by hand hoeing, mechanically, or with herbicides. Atrazine can be applied as a banded spray after planting; dalapon, diuron, and fluometuron have been found effective. Only the leaves of economic value, which are mostly on the perimeter of the bole are cut, leaving those which are still near the meristem.
After harvest, the terminal spines are cut off and the leaves are tied into bundles for transport to the factory. The fibrous strands are dried by placing them on racks in the sun or by centrifuging the supersaturated fibers, followed by artificial dehydration in driers. Drying should be done as quickly as possible in order to preserve the natural white color of the fibers.
The process also combs out the shorter fibers. The long or fine fibers are then sorted, graded, and packed.
The fibers are used mainly in the manufacture of twines and cordage ropes for ships. Sisal yarn is woven into open-mesh materials for carpet backing, bags, industrial fabrics, and matting. Bole rot caused by Aspergillus Niger is the most serious disease of sisal. It causes a wet bole rot and may result in the collapse and death of the plant.
Mexican sisal weevils Schyphophorus interstitials are the only major insect pests of sisal in Africa. Planting before or early in the rainy season and the application of insecticides in the soil around the young plants give some control. Benefits of Minerals to Pigs and their Deficiency symptoms. Poultry Management — Disease Prevention and Control.