Description and Uses
Derris elliptica (Derris tuber root) is a
tropical
plant from
Malaysia & Indonesia . It is mainly grown for its
poison herbicide crops
, which have a
short shelf life. The crop is harvested by
grubbing. It starts flowering after
1 -
2 years. The yield will be
1500, but in its top season there will be a yield of
3000 kg/ha. Other crop types include;
ornamental, poison herbicide, medicinal, repellent pesticide, . The
{missing data} is used as
inedible . The
root is used as "
anti-microbial, " with
{missing data} ({missing data} -
{missing data}) as its significant
phytochemical. There is
{missing data} extracted by
{missing data} from the
plant's
{missing data} yielding
{missing data} -
{missing data} oil. The
plant's wood is called
{missing data} and has a density of
0 -
0 kg/m³. Regarding firewood production the
plant's growing speed is
{missing data}, it's energetic value is
0 ckal/kg and the wood's drying speed is
slow. After
3 years the
plant can be totally removed as it reached its commercial and ecological goal.
Derris elliptica has a lifespan of
20 years.
Environmental limitations
The plant is
16 meters tall with a crown of
1 meters wide. The
plant prefers a planting distance of
300 cm and a row distance of
300 cm. It is
very slow growing and
partial shade tolerant.
Derris elliptica has a
deep root-system and it has symbiotic associations with the
fungi
(endo-mycorrhiza). It is
able to fix nitrogen moderately with
"Microbacteriaceae bacteria. The name(s) or string of bacteria include(s)
"not applicable ". The
plant's flower-morphology is
{missing data} and is pollinated by
{missing data}.
Derris elliptica is
evergreen and
{missing data} and has
no thorns.
Derris elliptica thrives in an altitude of
1000 to
2000 meters above sea-level
(tropical). The minimum temperature is
2°C; optimally between
16 -
25°C. The optimal rainfall is
1350
mm/year. Without irrigation the annual rainfall should be between
600 -
1500mm (L/m²). The optimal soil-pH is between
6.0 -
7.0 in a soil texture of
clay. To salt it is
intolerant to wind
a bit tolerant and to fire
intolerant.
Pests and Diseases
Derris elliptica is susceptible to the following pests:
. And it's susceptible to the following diseases:
(missing data) ,
,
.
Seed Propagation
Seeds are
orthodox and can be stored for
5 months. There are approximative
0
seeds/kg. The seeds can be propagated as followed:
- (1) Store harvested seeds dry at room temperature
- (2) Soak the seeds overnight in warm water before sowing.
- (3) press the seeds twice its size in the soil soil.
