Management Rubber Plantation (Chairil Anwar)
Land Clearing Land to grow rubber trees must be cleaned from the Remains of plants, cut down the results of logging, land clearing so That Should the schedule be adjusted with the planting schedule.
This includes land clearing activities
(A) pruning shrubs, (b) cutting of trees, (c) and perecanaan
pruning, (d) Clearing the root wood, (e) stacking and cleaning.
The clearing of land settlement was carried out in blocks, the arrangement of the garden walk, and the arrangement of drainage channels in the plantation.Arrangement of the blocks. Garden land rossed by the smallest units and Arranged into blocks of size 10 -20 ha, Every Few blocks together into one stretch of Which will from have relatively the Same Age.
The road network Should be organized and conducted on new plant construction time (year 0) and was associated with the settlement of land into blokblok plants. Construction of roads in the area Should have a maximum carry distance as far as 200 m. If possible make the entire network heaped / connected, so That the overall pattern is an effective road network.
Drainage Channel Setup
After land clearing and road arrangements are carried out, then the creation and the restructuring of the drainage channel (drain field) is carried out. Adjusted cross-sectional area with rainfall at a particular time unit, and consider factors infiltration and evaporation. The entire field of drain the excess water is flowed on to the next shelter and poured down the drainage into.
With the goal of cost efficiency, processing of land for rubber cultivation Can be carried out with minimum tillage systems, namely by making the bolt Between the rows of one meter wide by 20 cm to hoe.
In the area of land That has a slope of more than 50 required terracing / contour plots of the system and into the slope about 150. This is intended to Prevent the possibility of erosion by rain water. Terrace width is ranged from 1:25 to 1:50 cm, depending on the degree of slope. Each of 60-10 for trees (depending on the degree of slope of 11 land) must be built the fort in order to Prevent erosion on-the surface of the map.
a) In the area of land That is relatively flat slope (the slope Between 00-80) Is spacing 7 mx 3 m (= 476 holes / ha) form straight lines follow the direction East - West Is 7 m and the direction North - South is 3 m.
b) Hilly On bumpy or land area (slopes of 8% - 15%) spacing of eight mx 2, 5 m (= 500 holes / ha) on the terrace Which is set to be continued Every 1:25 m (contour planting) . Marker materials Can use thin bamboo strips with a size of 20 cm - 30 cm. Each point at a place marker represents erection digging holes for plants.
Preparing place for rubber seed
Hole size for the seed is made from 60 cm x 60 cm in the upper part, and 40 cm x 40 cm, bottom depth 60 cm. At the time of a hollow, the upper soil (top soil) is placed on the left and bottom soil (sub soil) placed on the right).
Plant holes left for a month before the rubber seedlings Crops.
Planting Soil Cover beans (legume cover crops = LCC)
Ground cover planting beans this is done before the start of rubber seedlings Crops in order to avoid the possibility of erosion, improve soil physical and chemical structure, reducing pengupan water, and to restrict weed growth.
LCC Composition for Each hectare of land is 4 pounds. Pueraria javanica, 6 kg Colopogonium mucunoides, and 4 kg of Centrosema pubescens, Which Is mixed into the 5 kg of rock phosphate (PR) as a medium. Also it is advisable to insert Colopogonium caerulem resistant shade (shade Resistance) seed ex or ex Steck noted noted noted in small polybags of 1000 seedlings / hectare. Bean plants Maintained by weeding, fertilizing with 200 kg per hectare and RP, spread way Above average crop beans.
Recommended: high yielding, responsive to the stimulation results, resistance against pest and disease attacks the leaves and That bark, and good recovery of skin wounds. Conditions must be met Trust seedlings ready for planting acres Among Others:
- Seedlings in polybags rubber Which has an umbrella in half.
- Eye grafting really well and has started to germinate
- Roots grow well and have steep lateral roots
- Free from fungal root disease (White Root fungus)
With spacing of 7 x 3 m (for sloping ground), rubber plants seeds needed for planting as many as 476 seeds, and reserve for stitching as many as 47th (10%) so for Every hectare garden That is needed as much as 523 rubber seedling stems.
In general rubber planting in the field that is carried out in the rainy season Between September to December rainfall is sufficient. At planting, the soil covering the hole using top soil mixed with fertilizer RP 100 grams per hole, in Addition to 50 grams of fertilization with urea and SP - 36 of 100 grams as basal fertilizer.