8 research outputs found
KANDUNGAN KALIUM TANAH DI BAWAH TEGAKAN JATI (Tectona grandis), MAHONI (Swietenia macrophylla), DAN LEGARAN (Alstonia spectabilis R.Br) DI DALAM PETAK UKUR PERMANEN (Studi Kasus di Hutan Pendidikan Wanagama I, Gunungkidul, Yogyakarta)
Wanagama I Forest was built as a pilot from rehabilitation of critical land pattern, and also used as an educational land even research for lecturer and students at the forestry faculty of UGM as well as by other institutions. So, at the Educational Forest of Wanagama I need to be made permanent sample plots (PSPs) to know about the increment of plant grow. PSPs is made on site and on different stands in order to represent the condition of the Educational Forest of Wanagama I. one that can be studied in PSPs is potassium content of soil. Potassium is the third most important element after N and P for plant. This study aims to determine potassium levels of soil from the stands of Teak, Legaran, and the Mahogany at educational Forest of Wanagama I.
In research, data retrieval was doing at the field and laboratory, while the data retrieval from the field likes height, diameter, and sample of soil for analyzed in laboratory. In the laboratory analyzed potassium content of soil under the stands of teak, legaran, and mahogany with Atomic Absorption Spectrophotometer instrument and data were analyzed descriptively.
From observation to potassium levels of soil under the stands of teak, legaran, and mahogany in the educational forest of wanagama I, it included in the criteria is very low at <0.1 me/100gr. Nutrient levels of potassium in each stand is on Teak 0.003 to 0.020 me / 100gr, on mahogany 0,005-0,013 me/100gr, and on legaran 0,020-0,038 me/100gr. This shows the soil at educational forest of wanagama I in the stand of teak, mahogany, and legaran was very lack of nutrient potassium, and also at educational forest of wanagama I needed treatment of potassium fertilization for plants to grow well
KANDUNGAN KARBON DAN BAHAN ORGANIK DALAM TANAH PADA TEGAKAN KI PUTRI (Podocarpus neriifolius), JATI (Tectona grandis), LEGARAN (Alstonia spectabillis R.Br) DI HUTAN PENDIDIKAN WANAGAMA I
Forest education as a means of learning Wanagama I then need to do
research on available nutrients in forest soils Wanagama I. Plants require essential
nutrients. Not all types of plants in Wanagama I was able to grow fast and lush,
this is due to the influence of soil fertility as well as the suitability of the type of
crop grown. One characteristic of fertile soil contains a lot of organic matter.
Carbon is a constituent of most organic material so that the availability of carbon
is strongly influenced by the amount of organic matter. The availability of organic
matter in the soil also means the availability of carbon and energy source for soil
microorganisms which are very dominant role in the reform process of organic
materials. So the need for research on the content of soil Wanagama I to
determine the content of organic matter and soil carbon.
Samples were taken from 3 kinds of stands in the forest I Wanagama
education whose land has not been processed. Vegetation type used is Legaran,
Teak, and Ki daughter and soil depth (0-10, 10-20, 20-30, 30-50). The indicator
used is the carbon content of organic matter in the soil and forest education
Wanagama I. In the assay of organic matter and carbon elements used method of
Walkey & Black (volumetric method), 77% were correct value, calculated
expressed in Denntedt method (combustion method) which value is 100% truth.
The analysis called quantitative volumetric analysis axisimetris.
The results showed that the content of carbon in the land element
unprocessed Wanagama I have high criteria at depths of 0-10 and 10-20, was at a
depth of 20-30, 30-50 low on depth. Legaran: low, Teak (plot 7): very high, Teak
(plot 6): high,Podocarpus : high
KANDUNGAN C-ORGANIK DAN N TOTAL SERESAH DAN TANAH PADA BERBAGAI UMUR TEGAKAN CEMARA UDANG HASIL REHABILITASI LAHAN PASIR PANTAI
Coastal land areas such as Samas, Kuwaru, and Goa Cemara are degraded
land with soil texture dominated by sand fraction and the low amount of nutrient
availability. To rehabilitate the coastal land, C. equisetifolia was planted in 1996,
2000, and 2004, respectively. This research aimed to determine C-organic and N
total content of litter and soil in different ages of C. equisetifolia stand on
rehabilitated coastal sandy area.
The study was conducted in Goa Cemara, Kuwaru, and Samas with C.
equisetifolia stand aged 8, 12, 16 years. respectively. Litter samples were taken
from 1m x 1m quadratic wire and soil samples were taken with soil auger at depth
of 0-10 cm, 10-20 cm, and 20-30 cm at each location with 3 replications. The
litter was separated into fresh and fragmented litter and dried until reach a
constant dry weight. Both values of N total and C-Organic of litter and soil
samples were analyzed by Kjeldahl and Walkley and Black methods respectively.
The result showed that the older of C. equisetifolia stand, the higher Corganic
content of soil, while the N total content of litter, soil N total, and Corganik
of litter were not increase. The deeper the soil layer, the lower of the soil
C-organic and N total content. The significant decrease of soil C-organic contents
in Kuwaru occured at depth of 0-10 cm, 10-20 cm, and 20-30 cm, which were
0.34%, 0.07%, and 0.05%. The significant decrease of soil N total contents
occured at depth of 0-10 cm, 10-20 cm, and 20-30 cm, which were 0.04%, 0.02%,
and 0.01%. C. equisetifolia stands were able to increase the soil C-organic and N
total content of coastal sandy area. Eventhough the soil C-organic and N total
content are classified as very low
PENGARUH KOMPOSISI KOTORAN JANGKRIK, AYAM DAN KAMBING DENGAN TANAH REGOSOL TERHADAP PERTUMBUHAN SEMAI SENGON LAUT
Seedling growth media requirements require physical-chemical properties of
good. Physically, media should have high porosity so that the growth of seedling
roots will not have problems. One of the good media, the organic materials that
has decomposed completely because it can increase the porosity of media. While
chemically media must be able to provide the nutrients necessary for the growth
and development of the seedling. Currently increasing number of farmers cricket,
chicken and goat feces throwing away waste. These impurities could be expected
to improve soil physical and chemical properties that can be used as a media
mixing of plant in order to get a good quality seedling. This research was aims to
determine the mixing of ratio cricket dirt with regosol soils, chicken dirt with
regosol soils and goat dirt with regosol soils on the growth of Seedling sengon sea
until the age of three months.
The method used, that is with measurement of growth parameters including
height, diameter and rate of survival at Seedling sengon sea. This research use
CRD design (Compelety Randomize Design) by treatment with three types of dirt,
that is dirt cricket, chicken and goat mixed with regosol soils comparison, that is
1:1, 1:2, 1: 3 and control (without dirt).
The results showed the survival rate sea sengon seedling highest on the
composition of goat and soil mixing of regosol with a ratio of 1:3, of 100%. For
high mean of sea sengon seedling was highest in the composition of goat and soil
mixing of regosol with a ratio of 1:1, that is 1,23 cm. For diameter mean of sea
sengon seedling was highest in the composition of goat and soil mixing of regosol
with a ratio of 1:2, that is 0,012 cm
PENGARUH KOMPOSISI KOTORAN JANGKRIK DAN 3 JENIS TANAH YANG BERBEDA TERHADAP PERTUMBUHAN SEMAI SENGON LAUT SAMPAI UMUR 3 BULAN
One of the successful key of planting on field is the quality of seedling that
going to plant. To produce a qualited seedling it needs perfect composition of media
that has great porosity, aeration, and drainage. That�s why some materials to mix
media that use is needed to find.
This research made to find the impact of composition of crickets dirt and
regosol soil, rendzina soil, and latosol soil for the growth of seedling sengonlaut(P.
falcataria). This research use CRD (Completely Randomized Design) with 3 kind of
soil and 1 organic material and control. Every treatment use 4 seedling and repeated 3
times. Characters that counts is the height, diametre, and percentage of life.
The result of the research shows that dirt crickets given 3 different kind of
soils doesn�t show any real impact to the seedling growth of sengonlaut, but seedling
that plant on an mixture of dirt crickets media can survive till the end of observation.
Control life percentage 100% and the height growth of seedling is 8,7 cm in regosol
soil, 8,3 cm for rendzina soil, and 7,8 for latosol soil
PENGARUH KOTORAN JANGKRIK TERHADAP PERTUMBUHAN TIGA JENIS TANAMAN FAST GROWING
Every plant in the growth and development need nutrients, both macro and
micro, therefore if the plant has a limited nutrition, it will make stunted growth. The
stunted growth can be overcome by the fertilization. The importance of fertilizer
makes the most of the public need a lot of fertilizer and it is needed to their plant.
Lately, there are business lands that take advantage of crickets especially in big
cities such as Bekasi. Utilization of manure waste into organic fertilizer crickets
into potential along with the need for fertilizers is increasing. This research aims
to determine the effect of impurities crickets on the growth of seedlings Sengon
laut (Paraserianthes falcataria), Sengon buto (Enterolobium cyclocarpum), and
Lamtoro (Leucaena leucocephala) and also knowing the chemical content of
nutrients in the stool of crickets.
This research was conducted in the Laboratory of Intensive Silviculture
Faculty of Forestry, Klebengan, Sleman, Yogyakarta. The method used the
measurement of growth parameters include the height, diameter, and survival rate
at 3 different types of fast growing seedlings in Sengon laut, Sengon buto, and
Lamtoro. Measurements were taken once a week during 10 weeks, from October
2013 to January 2014. This research uses a series of CRD with three fertilizer
treatments, by comparison of the dirt ground cricket
KAJIAN NILAI BULK DENSITY TANAH PADA AREAL TANAMAN JATI (Tectona grandis), MAHONI (Swietenia mahagoni), dan LEGARAN (Alstonia spectabilis R.Br), PADA LOKASI PETAK UKUR PERMANEN (PUP) HUTAN WANAGAMA I
Forest of Wanagama I is a forest that have many functions in ecology, socialeconomy,
education, and others. In education field, forest of Wanagama I is become
an education forest that have big role in forestry field. Then need existence of
innovations into development and management, one of those that can be used within
aid development of Wanagama I forest Gunungkidul is by make permanent
measurement partition (PUP) in every partition in the forest of Wanagama I. PUP is
make on the different tracks and stands so that can represent reality condition of
Wanagama I. One of thing that can be researched on the PUP concern to one of
physic land character that is bulk density. This research is aims to know and collect
early data relationship of bulk density value on the hardwood plants (Tectona
grandis. L.f) partition 6 and 7, Mahogany (Swietenia mahagony jacg) partition 16,
and Legaran (Alstonia spectabilis) partition 15 at forest of Wanagama I.
Research method that is used is 2 those are in the field and in the laboratory. 1)
Field research is high and diameter measurement of three types of stands above and
2) laboratory research is done by drying sample in temperature 105o C until reaching
constant weight and then calculated using formula BD=(W2-W3)/Volume (gr/m3) to
get bulk density value on the land sample 4 locations above.
From the result research is known that high and diameter of the four stands
are about 0,5-4 m to the high and diameter is about 0,5 � 4,5 cm. it shows plants are
still pale so those are very potential to be use as PUP area because the growth can be
observed continually every year. Average value of bulk density in the whole location
shows high values those are for hardwood plant (partition 7 and 6), Mahagony and
Legaran in orderly 1,54 gr/cm3, 1,61 gr/cm3, 1,50 gr/cm3, and 1,62 gr/cm3. The matter
shows high land density thus on the research location need to be done land
management by mechanic instrument and add organic material to fix land density so
that plant�s growth will be better