Hubungan Karakteristik Biologis Gambut dengan Penyakit Busuk Batang yang Disebabkan Ganoderma pada Kelapa Sawit

The relationship of biological properties of peat with oil palm basal stem rot (BSR) caused by Ganoderma.  Indonesia as the largest palm oil producer in the world, has the large percentage of oil palm on peatland. The serious problems of cultivating oil palm on peatland is the presence of BSR disease caused by Ganoderma. There are no effective methods to control the spread of this disease. Biological control is an environmentally friendly alternative method focus, but on peatland, the development of this method is constrained by lack of information about the effect of biological environmental factors. This study aims to determine the effect of the biological propertiess  of peat on the intensity of Ganoderma attacks on oil palm. The relationship between the intensity of Ganoderma attacks and biological properties of peat was carried out by correlation test. The correlation analysis showed that the biological properties  of peat has not correlated with the Ganoderma attacks, except Summed Dominant Ratio of vegetation which tends to positively correlate to the number of Ganoderma antagonists. These results indicate that peatland vegetation management by maintaining the diversity of vegetation around oil palm can help reduce Ganoderma attacks.

DAMPAK KONVERSI HUTAN MENJADI LAHAN PERTANIAN TERHHADAP PEMBANGUNAN DESA STUDI KASUS DI HUTAN LINDUNG PINANG LUAR – KABUPATEN KUBU RAYA

Forest conversion activities into non forestry purposes impacts on decreasing of forestfunction as a main role sustainable development, especially as water regulators and as carbon storage. Therefore, deforestation not only causes a direct loss of forest habitat but also leads to indirect impacts as ecosystem services deteriorate or fail. Forests provide ecosystem services that include the regulation of weather and climate at local, regional and even global levels. Existence of protected forest Pinang Luar ± 3.228 acres take an important part and people living in the area has a high dependency on the forest. Farming activities become a treat to the forest and their indications show that cropland and palm estate already in the forest area. Land cover changes in protected forest Pinang luar at 2003 – 2012 impacts on villages at ring 1 area hierarchy decrease cause by population growth are not followed by the additional of infrastructures in economy, health and education. It is also caused by landconversion that occurred in the protected forest Pinang Luar. In the period 2003 - 2012, the villages directly affected (ring 1) have a level area hierarchy is much worse compared to villages that are not directly affected (Ring 2). And it affected to the development of the villages in the ring 2 which is better than the village at ring 1. These conditions happen because at the village in ring 1 change only on land not on the impact on the level of development that could affect the region hierarchy. This is in contrast with the ring 2 villages where the changes occur not only on land but also on its impact on the development so as to enhance the region hierarchy in ring 2 villages

PENGARUH PENGOLAHAN TANAH TERHADAP JUMLAH SIMPANAN BIJI GULMA DI DALAM TANAH PADA TANAH ALLUVIAL

This study aims to determine the effect of tillage on the amount of deposits of weed seeds in the soil on alluvial soil. Research conducted at the Faculty of Agriculture experimental field Tanjungpura in August to December 2014. Identification and data processing carried out at the Laboratory of Plant Pests Tanjungpura University . Research using observation method with weeds growing vegetation analysis after tillage. Observations were made after 1 times tillage , 2 times , 3 times and 4 times. Results of this study indicate that there are five species of weeds that have the highest amount of seed bank with a value of SDR above 10 % and is considered an important weed that is, Borreria alata, Cyrtococcum sp, Ageratum conyzoides, Ludwigia parennis and Phyllantus debilis. Based on the results of this study concluded that as many as 1 times tillage can reduce the weed seed bank  in the soil deposits if done before the weeds produce seeds.

Identifikasi Perubahan Luas Lahan Perkebunan Kelapa Di Kecamatan Sungai Kakap Kabupaten Kubu Raya

Identification of Coconut Plantation Area Changes In Sungai Kakap Sub-District Kubu Raya Regency, Land cover turnover and land use cannot be averted. Growth of the city and change in needs of facilities have caused the agricultural and plantation lands to undergo change in their functions. This reasearch aims to identify the change of coconut plantation land area in Sungai Kakap sub-district, Kubu Raya regency. The methods used in this research were surveys and landsat imagery interpretation of 2002 and 2017. The result shows that there were an increasement of coconut plantation area amounted to 6452,19 ha or about 403 ha per year from 2002 to 2017. The increasement of plantation area is due to the improvement of coconuts' selling price, thus encouraging farmers to manage and to expand the plantation area of coconut

STUDI KARAKTERISTIK SUB DAERAH ALIRAN SUNGAI DEDAI PADA DAERAH ALIRAN SUNGAI MELAWI KABUPATEN SINTANG

Dedai Sub watershed condition at this time has many changes of form and fuction caused by the opening of land activities, illegal gold mining and household garbage. This research aims to study the characteristic and profile of each characteristic Dedai Sub Watershed. In this study, only limited to the characteristic of the Sub Watershed, where 1 outlet observations consist of 2-point sampling. Dedai Sub Watershed has an area about ± 14.454,70 ha located in the subdistrict of West Kalimantan Regency Sintang Dedai. This study consists of two phases: first, field research of Dedai Sub Watershed conducted for 6 days consecutive on 1 outlet observations with a 2-point sampling. Point sampling performed on downstream and upstream Dedai Sub Watershed. Then samples of water counducted analysis of Laboratory Quality and Total Suspended Solid (TSS) health farm Faculty of Agriculture University of Tanjungpura Pontianak. Result of the study showed that the form and pattern of Sub DAS Dedai is a form of bird feathers and dendritic pattern, while the transverse parabolic profile. The order consists of 5 classes, with the value of IKD is 0,0087 km/km2 and belongs to the category of low discharge values of the flow upstreaman average of 0,6787 m3/sec downstream and 4,1976 m3/sec, the correlation coefficient discharge curve (r) of upstream 0,995 and downsream 0,985, with a coefficient of determination (R2) upstream 0,990 and downstream 0,969. Water quality on Sub DAS Dedai has an average pH of upstream 6,78 and downstream 6,46 is still good and the average temperature of the upstream 29,580C and downstream 29,70C still under normal circumstances in nature, whereas the average brightness level of the upstream 1,05 m and downstream 1,13 m. Total Suspended Solid (TSS) values averaged of upstream 5,2 mg/liter and downstream 8,7 mg/liter, while the average value of the upstream sediment discharge of 0,3135 ton/day and downstream 3,2611 ton/day and the correlation coefficient arch sediment (r) of upstream 0,933 and downsream 0,910, with a coefficient of determination  (R2) upstream 0,870 and downstream 0,827..

RESPON PERTUMBUHAN BIBIT KELAPA SAWIT DI MAIN NURSERY AKIBAT KOMBINASI PUPUK KOTORAN AYAM DAN NPK PADA TANAH PMK

Seedlings of oil palm in the main nursery take place from the age of 4 to 12 months of seedlings, in that period the oil palm seedlings already need additional nutrients in the growing media. Utilization of PMK soil as a growing medium is faced with low soil fertility, low levels of organic matter availability, and lack of nutrient content. The limited carrying capacity of PMK soil needs to be overcome by adding organic matter and nutrients to improve soil fertility of PMK as a growing medium for nurseries in the main oil palm nursery. This study aims to determine the effect and dose of the best combination of chicken manure and NPK fertilizer on PMK soil for the growth of oil palm seedlings at the main nursery stage. The study was conducted in Ngabang, West Kalimantan on January 17, 2022 to May 17, 2022. This study used a field experiment method with a completely randomized design (CRD) one factor, namely a combination of chicken manure and NPK fertilizer. The combinations in question are A= Chicken manure 0 % + 100 % NPK, B= Chicken manure 20 % + 80 % NPK, C= Chicken manure 40 % + 60 % NPK, D= Chicken manure 60 % + 40 % NPK, E= Chicken manure 80 % + 20 % NPK, F= Chicken manure 100 % + 0 % NPK. The variables observed in this study were plant dry weight (g), root volume (cm3), plant height (cm), stem diameter (cm), and number of leaves (strands). The growth response of oil palm seedlings in the main nursery on the 100 % NPK treatment was better than the 100 % chicken manure treatment on the variables of plant height, stem diameter and equally good on the variables of plant dry weight, root volume and number of leaves. Treatment of 100 % NPK resulted in the highest average plant dry weight, root volume, plant height, stem diameter and number of leaves compared to other treatments

KEPUASAN PETANI PLASMA TERHADAP PELAYANAN KEMITRAAN DI PTPN XIII PIR V NGABANG

Palm oil is one of the commodities that is seeded in Indonesia. It can be seen from the vast oil palm plantations has increased and the production of crude palm oil (CPO) is also increasing, to meet the demand for food and non-food industries. At home, in a span of 14 years from 1990 to 2003 the consumption of palm oil has increased every year, in 1990 the new consumption of 1.2 million tons, in 2003 increased to 3.2 million. The purpose of this study was to determine the Plasma Farmers Satisfaction of Service Partnership in PTPN XIII PIR V Ngabang. The method used daam this study is a survey method of research that is conducted to obtain the factors of the symptoms and seek information from a group or area. The questionnaire uses primary data with respondents numbering 50 people, the variables studied were Smallholders Satisfaction, Reliability (reliability), Tangible (Embodiment / physical evidence), Responsiveness (Seize Power), Assurance (Assurance), Empathy (Empathy). The results of the study are presented in tabular form and are described in the narrative, the result obtained is of 50 respondents regarding the services and materials in the guidance states Unsatisfied 27 respondents (54%), the quality of the means of production is satisfied by 32 respondents (64%), the service factory in TBS less able to accommodate as many as 25 respondents (50%), the core enterprise assistance in tackling pests and diseases of oil palm plantations is satisfied by 25 respondents (50%). Regarding the company's core discipline in obeying the agreement is satisfied by 28 respondents (56%), the core of the company's attitude towards the welfare of farmers not satisfied by 23 respondents (43.40%). Suggestions in this study to provide satisfaction to farmers is expected to the company must provide it in accordance with the wishes of farmers such as providing roads for village farmers routinely provide fertilizer to farmers to increase the production of oil palm fruits

STUDI ERODIBILITAS TANAH PADA LAHAN BEKAS PENAMBANGAN TANAH (GALIAN C) DI KELURAHAN SEDAU KECAMATAN SINGKAWANG SELATAN KOTA SINGKAWANG

This study aimed to assess and compare the soil erodibility (K) in the former mining land (quarry C) with different degree of slope on the hills in the Village area Sedau. Analysis of the data used deskriktif analysis. Ie using paired T test, soil sampling was carried out with a free grid method in soil samples taken in the form of intact or undisturbed and disturbed soil samples. Observation point includes 3 levels of the slope of the former mining land (quarry C), the slope of the land 250, 300 land slope, and the slope of the land 450. where in each class a different slope samples taken 5 points of observation with a depth of 0-10 cm layer. The measurement includes the observation variables, (a) texture, (b) permeability, (c) organic materials, (d) size of the soil structure. The average value of soil erodibility obtained classified into low soil erodibility class, with range values ranged erodibility (0.11 to 0.20) which erodibility values contained in the slope class 250 value 0,18 and in the slope class 300 have the value of 0.15 , while the slope for class 450 with a value of 0.15

Studi Keragaan Kebun Kelapa Sawit Swadaya di Kabutapen Kubu Raya

Performance Study of Independent Small Holder Oil Palm Plantation at Kubu Raya Regency. Independent small holder oil palm plantations are small holder oil palm plantations that are not affiliated with any institution. Farmers sell their own produce to local mills directly or through traders. Independent oil palm smallholders are faced with various problems, including limited access to information technology sources, financing, and markets. Independent small holder oil palm plantations in Kubu Raya Regency are facing a bigger problem because most of the plantations are on peatlands, therefore efforts are needed to help these farmers. Efforts that need to be made at this time are the provision of a database of independent small holder oil palm plantations, which so far do not exist. This study aims to obtain data on the performance of independent small holder oil palm plantations in Kubu Raya Regency. Collecting data using the interview method with a questionnaire. The results showed that most of the independent small holder oil palm farmers in Kubu Raya Regency running their business only as a side job so that the management is not optimal. Another obstacle is the difficulty in accessing the market so they are forced to sell their fruit through middlemen. The problem of transportation, namely transportation and inadequate roads, is also one of the causes of the difficulty in marketing the fresh fruit bunch

KEEFEKTIFAN HERBISIDA IPA-GLIFOSAT (480 g/l) DALAM MENGENDALIKAN GULMA PADA BUDIDAYA KELAPA SAWIT TBM

The objective of this study was to evaluate the herbicide effectiveness of IPA-Glyphosate (480 g/l) in control the common weeds on immature oil palm plantation. This study was performed in oil palm plantation at Rasau Jaya, Kubu Raya Regency, Kalimantan Barat Province. Vegetation analysis was conducted by using the square methods. Herbicide application carried out by a spraying method. Experiment arranged by randomized block design with 6 treatments and 4 replications. The results showed at 12 weeks after application the average density of weeds covering is 2,4-40%. The IPA- Glyphosate herbicide (480 g/l) with dose 5 l/ha effective suppressed the growth kinds of weeds up to 12 weeks after application and didn’t cause phytotoxicity in oil palm plantation