scholarly journals Pemberian Beberapa Jenis Biochar Terhadap C-Organik dan N-Total Pada Pertumbuhan Bibit Kelapa Sawit

2020 ◽  
Vol 22 (2) ◽  
pp. 79
Author(s):  
Ingrid Ovie Yosephine ◽  
Sakiah Sakiah ◽  
Erpands Abdi Lestari Siahaan

<p>Vegetative growth response of palm oil DxP Dumpy variety using biochar rice husks, oil palm shells, corncobs and coconut shells in the Main Nursery, aims to determine the effect of the administration of several types of biochar on increasing C-organic and N-total in ultisol in the main nursery of oil palm plants. This research has been carried out at the Agricultural Agribusiness College of Agriculture Practices (STIPAP) Medan and soil analysis was carried out at the Asian Agri Laboratory, starting in March-August 2019. The method used was Randomized Group Design (RBD) non factorial with 3 replications, while the treatment factors used were B0 (NPK Compound), B1 Biochar Rice Husk (50 g/polybag), B2 Biochar Palm Oil Shell (50 g/polybag), B3 Biochar Corn Cobs (50 g/polybag), B4 Coconut Shell Biochar (50 g/polybag). The parameters observed were plant height (cm), girth (cm), number of leaves (strands), root wet weight (gr), root dry weight (gr) and pH, C-organik, and N-total soil. The results showed that the biochar treatment of rice husks, palm shells, corncobs and coconut shells had no significant effect on the observed parameters such as plant height, girth, number of leaves (strand, wet weight of roots and root dry weight, pH and N-total soil, but have a very significant effect on the increase in C-organic soil.</p>

2018 ◽  
Vol 3 (1) ◽  
pp. 17
Author(s):  
Wagino Wagino ◽  
Sri Murti Tarigan ◽  
Eka Bobby Febrianto

<p>Global climate exchange especially rainfallspurs the growth of oil palm adapt to environmental conditions, so the development of oil palm plantations requires seeds that are able to adapt well in drought conditions.This study aims to determine whether water stress affects the growth of oil palm seedlings and sees the response of the level of resistance of oil palm seeds to drought stress.This research was carried out in the greenhouse garden experiment Medan STIPAP was conducted from January to June 2018. This study used Non-factorial Randomized Block Design (RBD), which consisted of 3 levels, 3 samples and 3 replications. Parameters to be observed were plant height, stem base diameter, leaf number, root wet weight, root dry weight, plant wet weight, plant dry weight, root volume, root length, stomatal density and number of stomata.The results showed that the difference in giving A1 water (100%) was significantly different from A2 (60%) and A3 (20%) on the parameters of oil palm seedling growth especially for the parameters of plant height, root wet weight, root dry weight, plant wet weight, plant dry weight, root volume, and root length while the base diameter of the stem, number of leaves, stomatal density and number of stomata give no significant effect. Drought stress effected to reduce the growth of stem diameter.</p>


2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Ghani Hendrika ◽  
Arifah Rahayu ◽  
Yanyan Mulyaningsih

This study was aimed at assessing the growth and production of celery plants grown with various compositions of N,P and K fertilizer and compost. The study was done at the Trial Farm of Faculty of Agriculture, Djuanda University, Bogor fiom September to November 2015. A completely randomized design with two factors was used. The factors consisted of compost rate and N,P and K fertilizer rate. Compost was given in four levels, namely no compost (0% R), 26.3% gcompost/plant (50% R), 52.5 g compost/plant (100% R), and 78.7 g compost/plant (150% R). N, P and K fertilizer was given in five levels, namely no fertilizer (0% R), 4 g Urea, 0.3 g SP-36, 0.2 g KCl (25% R), 0.9 g Urea, 0.6 g SP-36, 0.4 g KCI (50% R), 1.3 g Urea, 0.8 g SP-36, 0.6 g KCl (75% R), and 1.7 g Urea, 1.1 g SP-36, 0.8 g KCl (100% R). All fertilizers were administered gradually at the time of planting and 2 weeks after planting. Three replicates were allocated into each treatment making up 60 experimental units. Results showed that celery plants given synthetic fertilizer at 100% R had higher plant height, number of leaves, number of seedlings, harvest fresh weight (g), saleable fresh weight (g), root biomass (g), and root dry weight (g) than those treated with no fertilizer (0% R). Plants treated with 150% compost had higher plant height, number of leaves, harvest fresh weight (g), saleable fresh weight (g), root length (cm), and root dry weight (g) than those treated with no fertilizer (0% R). Thus the best celery growth and production in this study was obtained on plant 150% R compost   and 100% R synthetic fertilizer nourished.Key words: celery, compost, N, P, K fertilizer, harvest flesh weight


2021 ◽  
Vol 2 ◽  
pp. 234-239
Author(s):  
Nada Kholifah ◽  
Ardiana Kartika B ◽  
Teguh Pribadi

PGPR (Plant Growth Promoting Rhizobacteria) is a substance that helps plant growth with the help of rhizosphere microorganisms. PGPR propagation can be done with liquid media. This PGPR propagation needs to be done because this substance has many benefits for agricultural cultivation. The application of PGPR to the test plant, namely the pakcoy plant, proved that there was an effect of giving PGPR to the plant. Observations on the test plants were carried out by observing several observation variables such as plant height, root length, number of leaves, wet weight and dry weight. The results of these observations showed that the effect on the test plants was seen in the variables of root length, wet weight, and dry weight. Meanwhile, the variable plant height and number of leaves did not show a visible difference. 


2021 ◽  
Vol 883 (1) ◽  
pp. 012015
Author(s):  
C I Wahyudin ◽  
A S Mahulette ◽  
V L Tanasale ◽  
D A Marasabessy ◽  
N Goo ◽  
...  

Abstract The objective of this study was to determine the effect of drip irrigation and biological organic fertilizer treatment on oil palm growth. This study used a randomized complete block design with 3 replications. This research consisted of three experiments, namely drip irrigation, planting media composition, and cow urine dose on the growth of oil palm seedlings. There are three levels of drip irrigation, namely 30 minutes, 60 minutes and 90 minutes. Experiments on the type of planting media composition consisted of two types, namely M1 (ultisol soil + husk charcoal + fern fertilizer) and M2 (ultisol soil + empty bunches + goat manure). The cow urine experiment consisted of three levels, namely 100 ml, 150 ml, 300 ml. The results showed that giving water for 30 minutes gave the best results on stem circumference, plant height increase, plant dry weight increase, plant wet weight increase in oil palm seedlings. M1 media (ultisol soil + husk charcoal + fern fertilizer) had a significant effect on the increase in plant height, wet weight and dry weight of oil palm seedlings. Treatment of 150 ml cow urine liquid fertilizer is sufficient for the needs of oil palm seedlings with a response that is not different from 200 ml of cow urine.


Author(s):  
Suswati Suswati ◽  
Asmah Indrawaty ◽  
Rizal Aziz ◽  
Eka Prasaditya Ramadhani

Growth of FHIA-17 Banana Seedlings with the Application of Hijauan Paitan Fertilizer (Titonia Diversifolia) and Cow Manure. The aim of this study was to obtain data on the growth of FHIA-17 banana seedlings after application of T.diversifolia forage and cow manure. Using a factorial Randomized Block Design (CRD) with two treatment factors. The first factor is the forage dose of T. diversifolia (P) with 5 levels, P0=Control; P1=12.5 g kg-1 planting medium (equivalent to 5 tons ha-1); P2=25 g kg-1 planting medium (equivalent to 10 tons ha-1); P3=37.5 g / kg of planting media (equivalent to 15 tons ha-1); P4=50 g kg-1 of growing media (equivalent to 20 tons ha-1). The second factor is the dose of cow manure (K) with 5 treatment levels namely, K0=Control; P1=12.5 g kg-1 of growing media (equivalent to 5 tons ha-1); K2=25 g kg-1 of growing media (equivalent to 10 tons ha-1); K3= 37.5 g kg-1 of growing media (equivalent to 15 tons ha-1); K4=50 g kg-1 planting medium (equivalent to 20 tons ha-1 and repeated 2 (two) times. Observed parameters were plant height (cm), number of leaves, stem circumference (mm), plant wet weight (g), plant dry weight (g). The results of this study indicate that the application of forage T. diversifolia significantly affected plant height and number of leaves. It’s not real with respect to all observational parameters.


Author(s):  
Dwi Astutik ◽  
Ratih Rahhutami ◽  
Aline Sisi Handini ◽  
Ahmad Sutopo

<em>A planting medium that rich in nutrients is needed for oil palm, especially in the nursery phase. This study aimed to determine the effect of various doses of EM4 and to get the best dose of EM4 on the growth of oil palm seedlings in the pre-nursery. The research method used was a non-factorial completely randomized design with 4 treatments, namely 0 ml EM4 (A1), 4 ml EM4 (A2), 8 ml EM4 (A3), and 12 ml EM4 (A4). Each treatment was repeated 6 times so that there were 24 experimental units. The data obtained were analyzed for variance at the 5% level, if the effect was real, it was followed by the least significant difference (LSD) test. Based on the results of the study, it could be concluded that application of various EM4 doses had a significant effect on plant height (4-12 MST), the number of leaves (4-8 MST), trunk girth (4-12 MST), and shoot wet weight but did not significantly affect the number of leaves (12 MST), the volume of roots, length of roots, root wet weight and shoot dry weight, dry weight root, the best dose was shown at a dose of 12 ml EM4.</em>


2021 ◽  
Vol 2 (6) ◽  
pp. 2053-2060
Author(s):  
Gusti Ayu Kade Sutariati ◽  
Muhidin ◽  
Nini Mila Rahni ◽  
Gusti Ngurah Adi Wibawa ◽  
La Mudi

Areca nut is widely used as industrial raw material, both for health and cosmetics and as a source of renewable energy. This study aimed to examine the combination of seed bombatriconditioning and LEISA fertilization treatments that were effective in increasing the growth of areca nut seedlings. The research was carried out in the Wua-Wua Kendari Village, from March to July 2021. The study used a split-plot design with a completely randomized design (CRD). The main plot is seed biomatriconditioning treatment which consists of 3 treatments. While the subplots were fertilized with the LEISA technique which consisted of 6 treatments so that 18 treatment combinations were obtained with 3 replications. Observations were made on plant height, number of leaves, stem diameter, number of roots, wet weight and dry weight of shoot. Observational data were analyzed using analysis of variance, followed by the DMRT α0.05 if there was a significant effect. The results showed that seed biomatriconditioning treatment with rhizobacteria integrated with the LEISA technique was able to increase the growth of areca nut seedlings. The integration between L1R biomatriconditioning and the application of organic plus fertilizer + 100% inorganic fertilizer showed a better growth performance of areca nut on plant height, number of leaves, stem diameter, number of roots, wet weight and dry weight of betel nut which were significantly different with control and application 100% inorganic fertilizer, but not significantly different from organic plus fertilizer, organic plus fertilizer + 50% inorganic fertilizer and organic plus fertilizer + 25% inorganic fertilizer. As a conclusion, pre-planting seed treatment with L1R biomatriconditioning is very important to increase areca nut seed germination. To increase the growth of areca nut seedlings, further fertilization needs to be done with organic plus fertilizer or a combination of organic plus fertilizer + 25% inorganic fertilizer.


2017 ◽  
Vol 13 (2) ◽  
pp. 94-102
Author(s):  
Dessy A Ralahalu ◽  
Rhony E Ririhena ◽  
Abdul K Kilkoda

This study aims to examine the effect of concentration of liquid organic fertilizer supermes on various spacing to the growth and yield of onion. The experiment was conducted in Dusun Telaga Kodok, Hitu Lama Village, Leihitu Barat District, Central Maluku District, from March to April 2017. The experiment used was a Randomized Block Design with three replications. The concentration of liquid organic fertilizer supermes consists of: 0, 2, 4, 6 mL/L water. Plant ing distance consists of: 10 × 15 cm, 15 × 15 cm and 20 × 15 cm. Varieties used were varieties of Bima Brebes. Parameters measured were plant height, number of leaves, number of tubers, root length, wet weight and dry weight of tubers. During the experiment, rainfall and rainy days were quite high at the research location. This condition causes the crop to be harvested at 41 HST because it is attacked by ground caterpillar, mosaic disease and purple spots. The application of liquid organic fertilizer has not shown any significant effect to the growth and yield parameters of shallot crop. Planting distance of 15 × 15 cm shows the effect on plant height and number of leaves at 35 HST, tuber weight and tuber dry weight and there is a significant interaction on the leaf number at 35 HST with concentration of 4 mL/L water and Planting Distance 15 × 15 cm. Keywords: liquid organic fertilizer, planting distance, red onion   ABSTRAK Penelitian ini bertujuan untuk menguji pengaruh konsentrasi pupuk organik cair supermes pada berbagai jarak tanam terhadap pertumbuhan dan hasil bawang merah. Penelitian dilaksanakan di Dusun Telaga Kodok, Desa Hitu Lama Kecamatan Leihitu Barat, Kabupaten Maluku Tengah, dari bulan Maret sampai dengan April 2017. Percobaan menggunakan Rancangan Acak Kelompok dengan tiga ulangan. Konsentrasi pupuk organik cair Supermes terdiri dari 0, 2, 4, 6 mL/L air. Jarak tanam terdiri dari 10 ×15 cm, 15 × 15 cm, dan 20 × 15 cm. Varietas yang digunakan adalah varietas Bima Brebes. Paramater yang diukur adalah tinggi tanaman, jumlah daun, jumlah umbi, panjang akar, bobot basah dan bobot kering umbi. Selama percobaan berlangsung curah hujan dan hari hujan cukup tinggi terjadi di lokasi penelitian. Kondisi ini menyebabkan tanaman dipanen pada umur 41 HST karena diserang oleh hama ulat tanah, penyakit mozaik dan bercak ungu. Pemberian pupuk organik cair belum memberikan pengaruh yang nyata terhadap parameter pertumbuhan dan hasil tanaman bawang merah. Jarak tanaman 15 × 15 cm berpengaruh terhadap tinggi tanaman dan jumlah daun pada 35 HST, bobot basah umbi dan bobot kering umbi serta adanya interaksi perlakuan yang nyata terhadap jumlah daun pada umur 35 HST dengan konsentrasi 4 mL/L air dan jarak tanam 15 × 15 cm. Kata kunci: bawang merah, jarak tanam, pupuk organik cair


Author(s):  
Imron Rosyadi ◽  
Karmanah Karmanah ◽  
Sugiarto Sargo

Abstrak Pupuk organik bentuk cair berbahan urin dari ternak adalah salah satu alternatif pupuk ramah lingkungan yang dapat meningkatkan produksi dan pertumbuhan pakcoy. Berdasarkan hal tersebut, peneliti terdorong melaksanakan kajian dengan tujuan mengetahui dampak pemberian pupuk organik cair berbahan urin ternak terhadap perkembangan tumbuhan pakcoy (Brassica rapa L.). Percobaan lima perlakuan memakai Rancangan Acak Lengkap (RAL) yang merupakan pemberian tipe pupuk organik cair hasil ternak urin kambing, urin sapi dan urin kelinci, pupuk kimia AB Mix sebagai pembanding dan tanpa pemupukan (kontrol). Pengamatan dilakukan terhadap tinggi tanaman, kuantitas daun, berat kering dan berat basah panen. Data  dianalisis menggunakan software SPSS serta diuji  Duncan Multiple Range Test (DMRT). Hasil kajian yaitu pada semua pupuk organik cair terjadi peningkatan kandungan unsur P, penurunan unsur K dan pH setelah difermentasi pH berkisar 6,85–8,45 dan sesuai dengan peraturan Menteri Pertanian No. 70/Permentan/SR.140/10/2011 tentang pupuk organik, pupuk hayati, dan pembenah tanah. Pupuk organik cair berbahan urin ternak mampu meningkatkan jumlah daun dan tinggi tanaman pakcoy yang secara sig nifikan berbeda dibandingkan pupuk kimia.  Aplikasi pupuk organik cair urin kambing menghasilkan berat kering dan berat basah panen pakcoy yang serupa dengan pupuk kimia.  AbstractLiquid organic fertilizer made from urine from livestock is an alternative to environmentally friendly fertilizers that can increase pakcoy production and growth. Based on this, researchers are interested in conducting research to determine the effect of liquid organic fertilizer made from livestock urine on the growth of pakcoy (Brassica rapa L.). The experiment was carried out with five treatments using a completely randomized design (CRD), namely the application of liquid organic fertilizer from goat urine, cow urine and rabbit urine, chemical fertilizer AB Mix as a comparison, and without fertilization (control). Observations were made on plant height, a number of leaves, dry weight and wet weight of harvest. Data were analyzed using SPSS software and further tested with Duncan Multiple Range Test (DMRT). The results of the study were that in all liquid organic fertilizers there was an increase in the content of P elements, a decrease in K elements, and pH after fermentation. 70/Permentan/SR.140/10/2011 concerning organic fertilizers, biological fertilizers, and soil enhancers. Liquid organic fertilizer made from livestock urine is able to increase the number of leaves and plant height of pakcoy which is significantly different from chemical fertilizers. The application of goat urine liquid organic fertilizer resulted in the same dry weight and wet weight of pakcoy harvest as chemical fertilizers.  


Author(s):  
O. S. Olubode ◽  
D. O. Ayoola

Phytotoxicity of wild plants is sometimes utilized in the control of weeds. Their effects on crops are however not extensively documented. Effects of aqueous extracts of Olax subscorpioidea Oliv. were thus examined on seeds and seedlings of maize. Two experiments were laid out in complete randomized designs (CRD) and replicated five times. Ten seeds of maize were initially placed in separate petri-dishes and moistened daily with two (2) ml water extracts of different parts of Olax sp. while 2 ml of distilled water served as control. Secondly, maize seedlings growing on top soil in experimental pots were treated with 100 ml of extracts at seven days intervals for eight weeks. Data were collected on number of germinated seeds daily, and lengths of five randomly selected plumules and radicles at 7 days after sowing (DAS). Number of leaves, plant height, root dry weight and shoot dry weight of seedling were measured using standard methods. Analysis of variance and Duncan’s Multiple Range Test were conducted to statistically determine significant means at P=0.05. Mean germination of (0.71±0.00) was observed at 2 DAS and 2.81±0.10 at 7 DAS. Leaf extracts significantly reduced germinability, but significantly increased number of leaves, plant height (26±1.28), root dry weight (10.30±3.24) and shoot dry weight (14.99±2.13). The results showed that Olax subscorpioidea has alloallelopathic (phytotoxic) effects on maize seeds, but stimulated growth of maize seedlings. Its use as a bio-herbicide or growth stimulant in should be well-timed.


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