CD Tesis

Perbaikan Kualitas Acacia Crassicarpa A.Cunn Ex.Benth Dengan Mencegah Serangan Shrubby Pada Lahan Gambut Menggunakan Bahan Tanam Cutting Dan Seedling Yang Diberi Zincobor Dan Dolomit

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The objective of this research are to analyze and investigate the effect of
applying zincobor fertilizer and combination of zincobor fertilizer and amelioran
dolomite to the potential reduction of shrubby symptoms on acacia plants (Acacia
crassicarpa) and to determine the most effective combination of zincobor fertilizer
and amelioran dolomite to increase the availability of micronutrienst Cu, Zn and B
on A.crassicarpa cultivated land and reduced the number of shrubby plants. The
observed parameters in this study were verticality, number of additional branches
(co-leaders) and plant height (height) and levels of zinc (Zn), Cuprum (Cu) and
Boron (B) micronutrients. The research method uses is randomized block design
experiment methode for plant material, namely cutting and seedling planting material
and a nested design for application of zincobor fertilizer and amelioran dolomite,
with five replications and four treatments, namely control, zincobor 20 g, zincobor 20
g + amelioran dolomite 250 g, and zincobor 30 g, analyzed and calculated in the
field and laboratory and experiments analysis of significant differences. Fertilizer
application was carried out 1 time and the parameter assessment period was carried
out on day 0, 131, 355 after the application of zincobor and amelioran fertilizer. Soil
quality test based on pH, peat soil has a low pH of 3.41 – 3.7. In addition, the content
of micro elements such as Zinc, Cu, and Boron is low. Soil tests were carried out on
days 0 and 355, where soil samples were taken at each location, at the location of
shrubby and normal plants to determine the nutrient content of Zn, Cu and B.
The results of research show that zincobor fertilizer at a dose of 20 g showed
the best results for all observed parameters, namely increasing stem straightness
(verticality), decreasing the number of additional branches (co leader), increasing
plant height and reducing the risk of shrubby plants reappearing in the field. Shrubb
an abnormal potential in acacia plants, shrubby plants show an abnormal growth
pattern, the plant resembles a bush plant. The normal growth of acacia should show
an increase in the diameter of the wood according to the age of the tree and grow
upright, with a normal increase in plant height and crown growth, in contrast to the
condition of shrubby plants, shrubby plants cause abnormal plant growth, namely in
a vine pattern, not growing upright and has many branches and resembles a bush
(shrub). This results in the potential for wood not being produced optimally, where
acacia is wood for pulp and paper production. Shrubby plants appear in the field,
due to a deficiency in the nutrients Zn, Cu and B, causing shrubby plants to be
strengthened by the type of soil suitable for cultivating acacia plants is peat, which is
a type of peat soil which has soil characteristics with high acidity, low fertility and
availability limited nutrients even poor soil types of nutrients. By applying zincobor
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and ameliorant dolomite fertilizer, it is increase the levels of Zn, Cu and B and
become available to plants and also increase the availability of Cu and Mg elements
from dolomite ameliorant a a soil conditioner. The levels of Zn, Cu and B nutrients
also increased according to the standard nutrient levels in the soil given after the
treatment was given to A. crassicarpa plants. The study used two different types of
planting materials, namely cutting and seedling plant materials. The two planting
materials are produced from different sources. Cutting planting material is produced
from a vegetative process, usually using modern agricultural techniques, namely
tissue culture, while seedling planting material is produced from generative
propagation through seeds. Parameter assessment of stem alignment (verticality),
number of additional branches (co leader) and plant height on A. crassicarpa was
carried out on day 1, 131 and 355, show replicates, treatments, and the period of
days after application showed significantly different variations. The application of
zincobor fertilizer 20 g gave the highest free effect value of 0.108 with the expected
straightness rate of 6.736. Fertilizer application also increases plant height in
shrubby plants with a standard deviation value of 4.9. This can be seen in the value of
the variation in days after application which has a significant height of 103,551.4,
with a propagation variation value of 94% and a standard deviation of 321.8, giving
a real effect on increasing the average plant height. Seedling and cutting planting
materials were not significantly different on verticality and plant height. Seedling
planting material gave good results compared to cuttings, but for the number of
additional branches (co leader), cuttings had a lower number of branches compared
to seedling at 355 days old. Shrubby plants from cuttings and seedling on day 0,
where the age of the plants was 2 to 2.5 months consecutively 23 stems and 27 stems
of plants identified as shrubby plants, after being treated with zincobor fertilizer and
ameliorant dolomite , the number of shrubby plants from cuttings and seedling to be
decrease, each 2 plant stems at the research site.
Key Words : Acacia crassicarpa, peatland, shrubby plants, zincobor, dolomites
verticality stem, number of branches (co leader), plant height, cutting,
seedling.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1810246762

Penerbit

Pekanbaru : Universitas Riau – FISIP – Ilmu Pertanian., 2022

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1810246762

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

ILMU PERTANIAN

Info Detail Spesifik

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Pernyataan Tanggungjawab

FATAH

Versi lain/terkait

Lampiran Berkas

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