scholarly journals Enhancing Chromium Phytostabilization Using Chelator (Agrobacterium sp. I26 and Manure) to Support Growth and Quality of Rice (Oryza sativa L.)

Author(s):  
Riani Dwi Utari ◽  
Mohammad Masykuri ◽  
Retno Rosariastuti

There are many of rice field which is located near the industrial area. The industrial waste contains heavy metals (chromium) which will cause contamination of rice if the waste isn’t treated properly. The used of chemical fertilizers can cause chromium contamination. It needs an effort to do remediation, such as using phytostabilization mechanism. This research aimed to determine the role of chelator in chromium phytostabilization and its influence on the growth and quality of rice. The study was conducted in Waru village, Karanganyar in May to October 2018.  This research was factorial design used completely randomized block design with two factors, namely chemical fertilizers and chelator (<em>Agrobacterium </em>sp. I<sub>26</sub>, and manure). The parameters observed are chromium content and uptake by plant tissues (roots, shoot and rice), plant height and a number of clumps. Research output was without chemical fertilizer-chelator <em>Agrobacterium </em>sp. I<sub>26</sub> that can increase the chromium uptake in roots as big as 95.38 %, increased up to 10 %  in the shoot and decreased up to 92.38 % in rice compared to control. Application of <em>Agrobacterium</em> sp. I<sub>26</sub> can be recommended to produce good quality and quantity of rice (good growth and free from harmful pollutants such as chromium metal).

Author(s):  
Totong Siwanto ◽  
Sugiyanta , ◽  
Maya Melati

ABSTRACT<br />Application of organic fertilizer into the soil is designated as a source of macro, micro nutrients and organic acids; it also acts as soil ameliorant that improve physical, chemical and biological properties of soil. Application of high rates organic fertilizer has a constraint namely the availability and ease of application. Therefore, it is necessary to learn the use of organic fertilizer with low rates to improve the efficiency of chemical fertilizers. This research was aimed to study the effect of organic and inorganic fertilizers on growth and yield of paddy rice, as well as the efficiency of N, P, K inorganic fertilizer. Field experiment was conducted at Sawah Baru Research Station, University Farm IPB, Bogor, West Java from September to December 2013. The experiment used Randomized Block Design consisted of two factors: rates of organic fertilizer (0, 250, 500, 750, and 1,000 kg ha-1), and rates of inorganic fertilizer (0, 100, 200, 300, and 400 kg ha-1). The results suggested that the application of 1,000 kg organic fertilizer ha-1 + 400 kg inorganic fertilizer ha-1 did not show significant interaction. Application of organic fertilizer alone up to 1,000 kg ha-1 resulted in low growth and yield. Increasing rates of  application up to 400 kg inorganic fertilizer ha-1 increased the growth and yield of paddy rice. The highest N efficiency was 89.19% at a rate of 500 kg organic fertilizer ha-1 + 200 kg inorganic fertilizer ha-1, whereas the highest efficiency of P and K, respectively were 69.55% and 92.52% at a rate of 750 kg organic fertilizer ha-1 + 300 kg inorganic fertilizer ha-1.<br />Keywords: NPK, organic fertilizer, paddy rice


2019 ◽  
Vol 3 (1) ◽  
pp. 29-37
Author(s):  
Istiqomah Istiqomah ◽  
Ana Amiroh ◽  
Dwi Choiriyah ◽  
Suharso Suharso

Rice is a rice-producing food crop which now plays an important role in economic life in Indonesia. Namely rice as a staple food is very difficult to replace by other staples. Among them are corn, tubers, sago and other carbohydrate sources. So that the existence of rice is now a top priority for the community in meeting the needs of carbohydrate intake that can be filling and is a source of primary carbohydrates that are easily replaced into an energy source. Rice as a staple food is consumed by approximately 90% of the total population in Indonesia for daily essential food (Saragih,2001). How to plant with the jajar legowo system has the advantage that the plants are on the edge so that optimal sunshine can cause plant productivity to be high, facilitate weed control and pests / diseases, use of fertilizer more effectively and the availability of empty space for regulating water channel circulation on land (Sirrapa, 2011). This research was conducted using Factorial Randomized Block Design (RBD) method, which consisted of two factors and each factor consisting of 3 levels repeated 3 times, namely: J1: Conventional,J2: Jajar Legowo 2: 1,J3: Jajar Legowo 4: 1. Factor II: Varieties with 3 levels, V1: Situ Bagendit, V2: Ciherang,V3: IR-64. Of the two factors 9 combinations of treatments were obtained and repeated 3 times. Data obtained from observations were calculated by analysis of variance with the Fisher test (-F test at the level of 5% and 1%), if there were significant differences, it would be followed by the Smallest Significant Difference test (LSD 5%). The treatment of the legowo 4: 1 row system and the ciherang variety (V2J3) produces a better value than other treatments.


2019 ◽  
Vol 1 (1) ◽  
pp. 20
Author(s):  
Elfi Anis Saati ◽  
Hilwa Heidir ◽  
Moch. Wachid ◽  
Sri Winarsih ◽  
Abd. Haris ◽  
...  

The study is to investigate the effectiveness of several anthocyanins on quality of papaya jam. It was conducted using a randomized block design, arranged with two factors. The first factor is the anthocyanin with different source with several levels that of control (without pigment), canna flower, grape and skins dragon fruit, factor II is sugar content which is 40%, 50%, and 60%. The results of the study, indicating that there is significant to increase quality products. The best treatment is papaya jam with canna flower anthocyanin pigment and 60% sugar.


2020 ◽  
Vol 5 (1) ◽  
pp. 898-904
Author(s):  
Lia Amalia ◽  
Raden Budiasih ◽  
Elly Roosma Ria ◽  
Raden Wahyono Widodo ◽  
Upit Kuswati

AbstractThe soil fertility and nutrient availability are limiting factors for growth and plant development. Fermented compost and nitrogen (N)-fertilizer are useful as sources of nutrients to support the growth of plant and microorganisms in soils. The combination of biological fertilizer and chemical fertilizer can support the concept of sustainable and integrated agriculture and minimize the adverse effects of chemical fertilizers. The research was conducted to get the recommended dose of fermented compost and N-fertilizer to increase the plant height and productivity of purple eggplant. The experiment was arranged as factorialized randomized block design and consisted of two factors and two replications, namely fermented compost dose (0, 5, 10, and 15 t ha−1) and N-fertilizer dose (0, 75, 150, and 225 kg ha−1). The observed responses were increase in plant height and productivity of purple eggplant. Compared to the control, the application of 15 t ha−1 fermented compost and 225 kg ha−1 N-fertilizer increased the plant height by 40.76% at 30 days after planting and 57.59% at 37 days after planting and increased the purple eggplant yield by 43.15%. BC ratio of the fermented compost (15 t ha−1) is 1.16 and BC ratio of the N-fertilizer (225 kg ha−1) is 1.09. Recommended dose to increase the plant height and productivity of purple eggplant in vertisol is 15 t ha−1 of fermented compost and 225 kg ha−1 of N-fertilizer.


2019 ◽  
Vol 2 (2) ◽  
pp. 59-71
Author(s):  
Muhammad Usman ◽  
Choirul Anam ◽  
Mariyatul Qibtiyah ◽  
Istiqomah Istiqomah

This research was conducted in Botoputih Village, Tikung District, Lamongan Regency. Altitude of ± 6 Masl. Research in February - April 2019. Using Factorial Randomized Block Design (RBD) method, which consists of two factors each factor consists of 3 levels which are repeated 3 times, i.e. : Jajar Legowo cropping factor (J) consists of 3 treatments, namely : Jajar Legowo 2:1 cropping pattern (J1), Jajar Legowo 3:1 cropping pattern (J2), Jajar Legowo 4:1 cropping pattern (J4). The fertilizer combination factor (P) consists of 3 treatments, namely : fertilizer combination of Petroganik 500 kg. ha-1 + PHONSKA 300 kg. ha-1 + Urea 200 kg. ha-1 (P1), fertilizer combination of Petroganik 500 kg. ha-1 + Urea 300 kg. ha-1 + SP-36 75 kg. ha-1 + KCl 50 kg. ha-1 (P2), fertilizer combination of Petroganik 500 kg. ha-1 + ZA 300 kg. ha-1 + SP-36 75 kg. ha-1 + KCl 50 kg. ha-1 (P3). The parameters observed included: tall plants, number of tillers, number of productive tillers, panicle length, number of grain per panicle, weight of wet grain per sample, weight of dry grain per sample, weight of dry grain per hectare and weight of 1000 seeds. Data from observations are calculated by analysis of variance followed by a 5% Least Significance Different (LSD) Test. This study aims to determine the effect of the treatment of legowo jajar cropping patterns and the best combination of fertilizers on rice growth and production. Treatments that provide high productivity are J1P3 (Jajar Legowo 2:1 cropping pattern and fertilizer combination of of Petroganik 500 kg ha-1 + ZA 300 kg. ha-1 + SP-36 75 kg. ha-1 + KCl 50 kg. ha-1)


2019 ◽  
Vol 6 (01) ◽  
pp. 17-23
Author(s):  
Dede Yudo Kurniawan ◽  
Ahmad Junaedi ◽  
Iskandar Lubis ◽  
Titi Candra Sunarti

Temperature is a primary factor that affects the rate of plant development and has great impacts on plant growth, metabolism, and yield. A study was conducted to analyze the effects of elevated temperature on rice morphological and the physiological growth. The research was arranged in a nested randomized block design consisting of two factors, temperatures and rice varieties. Elevated temperatures were provided through the uses of different materials of plastic roof and walls to have an average and maximum temperature of 27.6 °C and 41.6 °C (T1); 28.1°C and 43.8 °C (T2), and 29.5°C and 47.1 C (T3), respectively. The study used three varieties of rice, “Ciasem”, “Ciherang”, and “IR64”. All rice varieties showed signifi cant increases in tiller number per hill and shoot dry weight, but had a decrease in the stomatal conductance, transpiration rate, and SPAD values at grain fi lling stage with the increasing temperatures. The number of tiller per hill increased when temperature was elevated from 27.6 to 28.1 and 29.5°C by about 29.9 and 21.3%, respectively.


2020 ◽  
Vol 21 (2) ◽  
pp. 64
Author(s):  
Iman Sukirman ◽  
Eros Sukmawati ◽  
Siti Darojah Rasad ◽  
Nurcholidah Solihati

This study aimed to determine the influence of breed and type of extenders on frozen semen quality of cows at BIB Lembang. The experimental study was conducted in a Factorial Randomized Block Design (RBD) with two factors. The first factor was four cow breeds, i.e. Ongole Cross (PO), Brahman (BR), Simmental (SM) and Limousin (LM), and the second factor was two types of extender, i.e. Skim-Egg Yolk (SKT) and AndroMed® (AND), all repeated four times. The observed variables were percentage of spermatozoa motility and intact plasma membrane (IPM). All data obtained were analyzed using a general linear model (IBM SPSS ver. 23). The results demonstrated an interaction between breed and the type of diluent to motility. Breeds showed significantly different motility but non-significantly different intact plasma membrane (MPU) of semen. The type of diluent did not significantly affect motility and intact plasma membrane (MPU) of the frozen semen. The effect of the breed on BR motility was lower and significantly different from PO, LM and SM. The types of diluent did not significantly affect motility, MPU. The results showed that SKT was lower than AND, it was indicative effect of breed on intact plasma membrane (MPU) PO was lower than BR, LM and SM and the effect of the type of diluent on whole plasma membrane (MPU) AND is lower than SKT. It can be concluded that breed influences the motility of semen. The lowest motility reduction in frozen semen is Brahman cattle by using skim-egg yolk extender.


2021 ◽  
Vol 11 (1) ◽  
pp. 10
Author(s):  
I WAYAN RUMADA ◽  
I NYOMAN RAI ◽  
RINDANG DWIYANI

Fertilization outside the season of Siam Orange (Citrus microcarpa L.) with Induction of Flowering and Dormancy Breaking Substances. The Siam orange (Citrus microcarpa L.) produces seasonal fruit with the on-season harvest from July to August while the off-season harvest, i.e. from February to September there is hardly any fruit, or very limited supply. The purpose of this study was to examine the response of flowering induction and dormancy-breaking substances to produce off-season fruits of Siam orange. This research began in April to December 2016. The experiment was arranged factorially with two factors using a randomized block design (RBD), with nine combination treatments and six replications. Flowering induction factors consist of three levels, namely Ik = Control, IP = Paclobutrazol at a dose of 7.5 g/l, and Im = cutting the tip of dormant twigs. Dormancy-breaking substances factor consists of three levels, namely Dk = Control, Db = BAP 200 ppm, and Dn = KNO3 300 ppm. The results of the experiment showed that the highest fruit weight per tree at off-season production was obtained by induction with paklobutrazol (28.86 kg) and the lowest was in control (12.75 kg). Flowering induction treatments was not significantly different effect on fruit quality of Siam orange, represented by weight per fruits, fruit diemater, total soluble solid and vitamine C content was not siginificant different among levels of treatment. Dormancy-breaking substances treatment also not significantly effect on fruit quality of Siam orange. Based on this research it is recommended to induce flower for off-season produce of Siam orange by pruning the tips of dormant twigs or by using paklobutrzol.


2020 ◽  
Vol 7 (1) ◽  
pp. 33-49
Author(s):  
Pienyani Rosawanti ◽  
Nurul Hidayati ◽  
Fahruddin Arfianto ◽  
Djoko Eko Hadi Susilo

This research aims to know the effect interaction of application of types and different dosage of organic fertilizers on production and fruit quality of melons on peatlands, effect of application of types and different dosage of organic fertilizers on production and fruit quality of melons on peatlands, and the agronomic efficiency of the use of several types and different dosage of organic fertilizers on production of melons on peatlands. This research design was used as a Randomized Block Design (RBD) consists of two factors with 4 replication. The first factor consisted of types of organic fertilizer (P) i.e. chicken manure (PA), guano manure (PG), and cow manure (PS). The second factor consisted of fertilizer dosage (D) i.e. 0 tons ha-1 (without fertilization, called control), D1 = 15 tons ha-1, D2 = 30 tons ha-1 and D3 = 45 tons ha-1. The data obtained by analysis of variance (ANOVA) or F test at a = 5% and 1% levels to determine the effect of treatment was tested further by HSD (honestly significant difference) testat the level of 5%. The result shows that the interaction type of organic fertilizer and the dosage of organic fertilizer treatment significant effect on the weight of the melon. Chicken manure is the best organic fertilizer on the size and quality of the melon. Dosage of 45 tons ha-1 organic fertilizer gave the highest results but it was not significantly different with a dosage of 30 tons ha-1. The use of chicken manure fertilizer of 30 tons ha-1 is more efficient in agronomy in increasing melons yield on peatlands.


2020 ◽  
Vol 6 (3) ◽  
pp. 80
Author(s):  
MOCHAMMAD SHOLEH ◽  
ABDUL RACHMAN ◽  
MACHFUDZ MACHFUDZ

<p><strong>Effect of KS, AS, and urea Compositions and N-dosages on quality of Besuki cigar tobacco</strong></p><p>The experiment was conducted on loamy soil at Ajung, Jember from June 1999 to March 2000. The objective was to study the effect of Kalk Salpetcr (KS), ammonium sulphates (AS), and urea compositions and N-dosages on quality of Besuki cigar tobacco. The treatment consisted of two factors i.e. fertilizer composition and N dosages. The first factor was 5 levels of fertilizer composition, i.e. KS; KS(50%)+AS (50%); AS; KS(50%)+urea (50%) and uea. The second factor was 3 level of N-dosages, i.e. 60, 90 and 120 kg N/ha. The treatments were arranged in factorially randomized block design with 3 replications. Planting space was double row (100+70) cm x 40 cm wiUi a population of 168 plants per plot. Results showed thai AS or urea as side dressing fertilizer was not significantly different from KS fertilizer on the percentage of warpper (dekblad) and binder (omblad) quality, leaf thickness, and burning capacity. But especially on organolcptic AS or urea as side dressing fertilizer decreased organoleptic quality, i.e. the taste was bitter and irritating, less aromatic, bad smell, ash color changed from white to black, and decreased ash resistance. All of those characteristics were not desirable in cigar factory. Based on organolcptic quality we suggest the following : (I) AS and urea should be used as a starter only not as side dressing fertilizer, (2) KS fertilizer still perform Ihe best result (3) recommended N-dosage was 60 kg N/ha.</p>


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