| dc.description.abstract | The conversion of rain-fed and irrigated rice into oil palm plantations are a
circumstance that occurs in Indonesia, North Sumatra, especially in the Deli
Serdang and North Labuhanbatu Districts. This is difficult to be blocked although
the government has announced regulations with various regulations. The
application of available land on immature- and mature-oil palm has often been
conducted by farmers to cultivate rice as intercropping. However, cultivation
technology and yields of rice are still lower. The productive track to controlling
this trouble is developing of cultivation techniques for rice in the smallholder and
plantation of oil palm area.
The research consists of four stages. The first stage was aimed to analyze
the influence of artificial shade on the agronomic, physiological and yield
characters of rice varieties. The first stage was used the split-plot design with the
main-plot is shade-treated (0%, 25%, 50%), the sub-plot is varieties such as new
superior varieties (Inpara 2, Suluttan Unsrat 2, Inpari Mugibat, Inpari Sidenuk,
Mekongga, Ciherang, Cibogo, Inpari 10, Inpari 3, Inpari 4, Inpari 30) and local
rice varieties (Kuku Balam, Ramos, and Sigodang) in the irrigated rice land,
Experimental Field of Balai Pengkajian Teknologi Pertanian (BPTP) Pasar
Miring, Pasar Miring Village, Pagar Merbau Sub-district, Deli Serdang District,
North Sumatra Province. The research variables such as the vegetative
components (plant height, number of tillers.clumps-1, and leaf area), the
physiological components (chlorophyll content, percentage of grain moisture
content, fresh weight of rice stover.clump-1, and dry weight of rice stover.clump-
1), and the yield component (number of productive tillers, panicle length, number
of grain.panicle-1, percentage of filled grain, percentage of empty grain, 1000
grains weight, yield grain.plot-1, yield.ha-1, and shade stress index).
The second stage was aimed to obtain the effect of irrigated rice with
smallholder-oil palm immature-1 by plant spacing on the number of oil palm to
the agronomic, physiological and yield components of rice varieties. The second
stage was used the split-split plot design with the main-plot is number of oil palm
(P1: 100% = 143 plants.ha-1, P2: 75% = 107 plants.ha-1, P3: 50% = 72 plants.ha-1),
the sub-plot is row planting systems (Legowo 2:1, Legowo 4:1, Tegal 20 x 20 and
Tegal 25 x 25), and the sub-sub plot is rice varieties (Kuku Balam, Ramos, Inpari
10, Inpari Sidenuk) were conducted in rain-fed rice which was converted to
immature-1 of oil palm (4 years) in the Tiga-Tiga Sub-village, Sungai Sentang
Village, Kualuh Hilir Subdistrict, North Labuhanbatu District. The research
variables such as the vegetative components (plant height, number of
tillers.clumps-1, and leaf area), the physiological components (chlorophyll content,
harvest index, fresh weight of rice stover.clump-1, and dry weight of rice
stover.clump-1), and the yield components (number of productive tillers, panicle
length, number of grain.panicle-1, percentage of filled grain, percentage of empty
grain, 1000 grains weight, yield grain.plot-1, and yield.ha | en_US |
