1. - Which is the best way to begin with jatropha, from seeds or of long wait?
We considered that from long wait, due to the greater percentage of success of such. And because the germination will depend much on the conditions of storage of the seeds, like also its degree of freshness, because low much its percentage of germination due to these causes.
2. - It grows in any ground?
If, it does not require a type of special ground. The Jatropha grows almost anywhere, even in poor, sandy earth and saline, it can grow in pedregosas earth, inclusively can grow in the stone cracks. It is developed normally in barren and semi-arid grounds. It responds well to grounds with nonneutral Ph. The only thing that the Jatropha does not resist is the water stagnation. The water in excess kills the plant. Reason why with good drainage, nonsingle it grows in any ground, but that fertilizes the ground of around, being very good to seed another culture between furrows.
3. - It grows in salitrosos grounds?
The degree depends on salinity of the same one.
4. - It grows in contaminated grounds?
If. In addition it has the capacity to regenerate and to recover the ground.
5. - What type of climate is the advisee?
Climatically, the Jatropha Curcas L. is in the tropical and subtropics, but the man to in charge to take it to other types of climates and geographies, becomeing aclimated itself to but varied places. Therefore, the heat resists normally although also it supports to losses temperatures and it can resist until slight frosts. Its water requirement is extremely low and can support long periods of dryness.
6. - At what times Sowing or Plant?
All the year. (Preferably in nondry stations) Having available the long wait and being in appropriate conditions, one migrates to the field in the season of rains.
7. - What time must have the long wait to be transplanted?
The long wait must be 2 days old with 30 to 40 cm of stop (the plant has developed its aroma to repelente for the potential predators). But experiences made with long waits of 15 cm of stop, have demonstrated that it already has the sufficient properties developed for his transplant.
8. - What density of long waits is the advisee?
We suggested to seed in picture form, to a spacing of 2 meters between furrow and 2 meters between plant (2x2). It gives a total of 2500 plantas/ha, if the harvesting is going to be manual, but for mechanized harvesting this density by plant varies sustentablemente.
9. - When is obtained the first fruition?
To the 8 months normally first fruition. Normally the flowering is in November and January and the fruition in November and April.
10. - What life utility has the plant?
It is a perennial plant, producing seeds by 50 years of average.
11. - When and how much it produces by hectare?
To the 8 months in the first harvest 200-250 is obtained kg/ha. Soon to the year and means two annual harvests take place. Developed the plant, annually it is obtained around 10 kg. of fruits by plant, of which, 4 kg. they correspond to the seed. The yield is of 25 t of fruits by hectare and 10 t of seed (with a population of 2,500 plants by it has) Esta production improves with rain regime adapted in the year.
12. - It admits the pruning?
If, the plant admits the pruning and is advisable for its correct formation. The pruning takes place during the first year when the branches reach a length of 40 - 60 cm and during the second and third year to assure that the tree grows in the form and the appropriate size that it is required.
13. - One is due to desmalezar?
If, all type of weeds by the methods must be eliminated that the producer wishes. This task must be carried out the first year twice and soon to control his nonpropagation.
14. - Which are the Main plagues and diseases?
Plagues: Ant thermite (it eats away the base of the trunk), spiders and pulgones. Diseases: Marchite of the fruit (caused by acaruses), dry pudrición of the branches (caused by the fungus fusarium) and clorosis to foliar (total lack of nutrients).
15. - Expeller is poisonous?
If, but that can be annulled with the same process the soybean. However he is preferable to seed species apt for the consumption animal, directly.
16. - They sell Seeds?
At the moment no, when being a new culture, if we sold seeds and the same ones do not grow, it would be very difficult to determine if the seed were good or the agriculturist did not know to seed it correctly. The border among them is very thin. It is for that reason that we recommended to do it through long wait, whose percentage of success is the guessed right one.
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