scholarly journals Pengaruh Teknik Penggenangan Tanaman Padi Terhadap Beberapa Sifat Kimia Tanah

2018 ◽  
Vol 3 (3) ◽  
pp. 1-10
Author(s):  
Aris Munandar ◽  
Nazir Nazir ◽  
Zuraida Zuraida

Abstrak. Penggenangan tanah  sawah akan menyebabkan serangkaian perubahan beberapa sifat kimia tanah. Penelitian ini bertujuan untuk mengetahui pengaruh teknik penggenangan tanaman padi terhadap beberapa sifat kimia tanah. Penelitian ini dilaksanakan di Kebun Percobaan Fakultas Pertanian Universitas Syiah Kuala Darussalam Banda Aceh yang dimulai sejak Juni sampai November 2017. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) pola Non Faktorial. Perlakuan yang dicobakan adalah Teknik Penggenangan Tanaman Padi (P) yang terdiri atas 4 taraf dengan 4 kali Ulangan, sehingga percobaan ini mempunyai 16 satuan percobaan. Parameter yang di amati antara lain, pH tanah, P-tersedia, N-total, Fe, dan DHL. Hasil penelitian ini menunjukkan bahwa teknik penggenangan pada tanaman padi berpengaruh sangat nyata terhadap Fe dan DHL tetapi tidak  berpengaruh  nyata terhadap pH tanah, P tersedia dan N total.Effect Of Environmental Rice Planting Techniques Against Some Properties Of Land ChemicalsAbstract. Flooding of paddy fields will lead to a series of changes in some soil chemical properties. This study aims to determine the effect of rice cropping techniques on some soil chemical properties. This research was conducted in Experimental Garden of Agriculture Faculty of Syiah Kuala University of Darussalam Banda Aceh which started from June to November 2017. The design used in this research is Completely Randomized Design (CRD) Non Factorial pattern. The experimental treatment is Rice Flotation Technique (F) consisting of 4 levels with 4 times Deuteronomy, so this experiment has 16 unit experiment. Parameters observed include, soil pH, P-available, N-total, Fe, and DHL. The results of this study indicate that flooding techniques in rice plants have a very significant effect on Fe and DHL but no significant effect on soil pH, P-available and N total.

Author(s):  
C. H. Ravali ◽  
K. Jeevan Rao ◽  
T. Anjaiah ◽  
K. Suresh

A pot study was conducted during kharif, 2018-19 in College of Agriculture, Rajendranagar, PJTSAU, Hyderabad, with the aim to evaluate the response of maize to different levels of zeolite and nitrogen and to know the influence of zeolite on selected soil properties. The treatments consists of combinations of 3 levels of nitrogen (100, 150, 200 kg ha-1) and 4 levels of zeolite (0, 2.5, 5, 7.5 t ha-1) along with a control in which only P and K were applied and they were replicated thrice in a factorial completely randomized design. Results indicated that application of zeolite (7.5 t ha-1) and nitrogen (200 kg ha-1) individually had significant effect on N, P, K contents in maize at 30, 60, 90 DAS and at harvest. N and P contents in maize was significantly higher in N200Z7.5 (Nitrogen @ 200 kg ha-1 + Zeolite @ 7.5 t ha-1) however, there was no significant interaction with respect to K content. At harvest, the available P and K were significantly higher in the treatment receiving N100Z7.5.


Jurnal Solum ◽  
2011 ◽  
Vol 8 (2) ◽  
pp. 58
Author(s):  
Gusnidar Gusnidar ◽  
Yulnafatmawita Yulnafatmawita ◽  
Rosa Nofianti

This research had been conducted in the greenhouse and the Soil Laboratory of the Faculty of Agriculture, Andalas University, Padang, West Sumatera. The study was done from March until October 2011.  The aims of this research were to get the effect of compost from jengkol shell on chemical properties of paddy soil and rice yield.  The experiments were conducted in a greenhouse and the experimental units were arranged based on completely randomized design (CRD).  The treatments were application of compost K0 = 0 tons/ha (0 g/pot), K1 = 5 tons/ha (20 g/pot), K2 = 10 tons/ha (40 g/pot), K3 = 20 tons/ha (80 g/pot), K4 = 40 tons/ha (160 g/pot).  The data were compared to the criteria of soil chemical properties and plant data were statistically analysed for the variance.  If the F calculated > F table, the analyses were continued   by using DNMRT at 0.05 level of significance.  The results showed that application of 160 g compost/pot increased soil pH by 21.78%, N-total by 123.07%, organic-C by 65.84%, available P by 93.55%, K exch. by 238.35%, Ca exch. by 133.33%, Mg exch. by 90.00%, CEC by 238.90%, Cu exch. by 54,10%, as well as the yield by 12,68% compared to the treatment without compost application.Keywords : jengkol, nutrients, paddy soil, production 


2021 ◽  
Vol 19 (1) ◽  
pp. 155-163
Author(s):  
S Sapkota ◽  
D Kc ◽  
H Giri ◽  
M Saud ◽  
M Basnet ◽  
...  

The present research was conducted on two factor Completely Randomized Design (CRD) with eight treatments and three replications. A set of experiments were carried out to evaluate the effect of postharvest ethephon treatment and packaging on ripening of mango cv. Maldah. The treatments consisted of ripening agent i.e., ethephon and control treatment under different packaging condition i.e., fiber with hole, fiber without hole, plastic with hole and plastic without hole. The result revealed that different packaging condition and ripening agents influenced the ripening behavior of mango. The highest TSS (15.26), sugar-acid ratio (23.66) and juice content (126.05) were recorded with fiber (without hole) and the lowest TSS (12.60), sugar-acid ratio (9.01) and juice content (116.05) with plastic (without hole). The highest TA (1.44) was recorded with plastic (without hole) and the lowest (0.66) with fiber (without hole). Similarly, the highest BT (2.83) was recorded with fiber (with hole) and the lowest (1.66) with plastic (without hole). Firmness, sweetness, TSS and juice content were the highest with the interaction effect of fiber bag (without hole) and ethephon treatment. In conclusion, mango fruits with ethephon treatment packed in fiber bag (without hole) enhances quality and ripening of mango whereas under controlled condition and without hole plastic packaging mangoes had low quality performance in terms of physio-chemical properties. SAARC J. Agric., 19(1): 155-163 (2021)


2019 ◽  
pp. 1258-1266 ◽  
Author(s):  
Thiago Henrique Ferreira Matos Castañon ◽  
Boanerges Freire de Aquino ◽  
Edna Maria Bonfim Silva ◽  
Izabel Maria Almeida Lima ◽  
Ana Paula Alves Barreto Damasceno

The objective of this study was to analyze the effect of soil fertilization with sulfur-based fertilizers, sulfate and elemental sulfur forms on biomass production, nutrient characteristics of sorghum and soil chemical properties. The experiment was carried out in a 4 x 4 factorial scheme (four sulfur sources: single superphosphate, agricultural gypsum, elemental sulfur powder and elemental sulfur granulated with bentonite, and four sulfur doses: 0, 40, 80, 120 mgdm-3) using four replications in a completely randomized design, being cultivated in pots under greenhouse conditions. The sorghum was cultivated for a period of 51 days after emergence of the seedlings. The shoot dry mass, shoot macronutrients content, root and soil and pH of the soil were evaluated. There were interactions between sources and sulfur doses in the variables such as shoot dry mass, sulfur in the root, sulfur and calcium in the soil. Elemental sulfur (granulate) showed lower concentrations of phosphorus, sulfur and N:S ratio in the shoot. The concentrations of potassium, calcium and magnesium did not show significant differences, both for the shoot and the root. The pH of the soil was reduced depending on the sources and doses of elemental sulfur. The sources and doses of sulfur did not influence the levels of phosphorus, potassium, and magnesium in the soil. The elemental sulfur in the form of powder is the best source of sulfur for forage sorghum cultivated in soil with alkaline pH.


2020 ◽  
Vol 3 (4) ◽  
pp. 43-52
Author(s):  
Murtadha Murtadha ◽  
M. Abduh Ulim ◽  
Syamsuddin Syamsuddin

Abstrak.  Penelitian bertujuaan untuk mendapatkan isolat rizobakteri yang mampu berperan sebagai agens biokontrol terhadap pengendalian patogen R. microporus dan P. noxius secara in vitro serta sebagai agen rizobakteri pemacu pertumbuhan tanaman (RPPT). Penelitian dilaksanakan di Laboratorium Ilmu dan Teknologi Benih Jurusan Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala, Darussalam Banda Aceh, mulai Oktober sampai Desember 2017. Penelitian ini menggunakan Rancangan Acak Lengkap non faktorial. Faktor yang diteliti yaitu isolat rizobakteri, taraf yang dicobakan terdiri dari 15 isolat dan dua patogen antagonis R. microporus dan P. noxius, yang diulang sebanyak 3 kali sehingga terdapat 90 unit satuan percobaan. Hasil penelitian menunujukkan isolat rizobakteri mampu menekan pertumbuhan koloni cendawan patogen. Pada patogen uji R. microporus terdapat 3 rizobakteri yang paling baik yaitu isolat DLG5/3 dengan persentase penghambatan 68,33%, DLG4/1 dengan persentase penghambatan 66,66% dan DLG4/7 dengan persentase penghambatan 63,33%. Pada patogen uji P.noxius terdapat dua rizobakteri yang paling baik dalam menghambat pertumbuhan koloni cendawan patogen yaitu isolat DLG5/1 dengan persentase penghambatan 60,33%, dan DKP6/3 dengan persentase penghambatan 52,50%. Pada laju penghambatan isolat rizobakteri yang paling baik pada patogen R. microporus yaitu isolat DLG6/4 dan DKP4/1 dengan nilai rerata laju penghambatan 20,33 mm/hari. Pada patogen P. noxius menunjukan isolat rizobakteri yang paling baik yaitu isolat DLG4/1 dengan nilai laju penghambatan 12,05 mm/hari.Exploration of Indigenous Rizobacteria and Antagonistic Test against Patogen Rigidoporus microporus And Phellinus noxius In Rubber Plant (Hevea brasiliensis) In VitroAbstract. The research was conducted to obtain rhizobacteria isolates capable of acting as biocontrol agents on pathogen control of R. microporus and P. noxius in vitro and as plant growth promoter rhizobacteria (PGPR). The research was conducted at the Science and Technology of seed Laboratory, Department of Agrotechnology, Faculty of Agriculture, Syiah Kuala University, Darussalam Banda Aceh, starts from October to December 2017. The research using Completely Randomized Design non factorial. Factors researched were rhizobacteria isolates, the experimental stage consisted of 15 isolates and 2 antagonist were R. microporus dan P. noxius, and 3 time repeated until be found 90 units of treatment. The results showed that rhizobacteria isolates capable to inhibith growth of colonies pathogenic. In the pathogen of R. microporus test, there are 3 better rhizobacteria were DLG5/3 isolate with 68.33% inhibition percentage, DLG4/1 with 66.66% inhibition percentage and DLG4/7 with 63,33% inhibition percentage. In the pathogen of P. noxius there are 2 best rhizobacteria inhibiting growth, DLG5/1 isolate with 60.33% inhibition percentage, and DKP6/3 with 52,50% inhibition percentage. In the pathogen of R. microporus test, there are 2 better rhizobacteria were DLG6/4 and DKP4/1 with 20,33 mm/day inhibition percentage. In the pathogen of P. noxius test,  the best rhizobacteria were DLG4/1  with 12,05 mm/day inhibition percentage. 


Author(s):  
C. V. Ogbenna ◽  
V. E. Osodeke

Aim: A pot experiment was carried out to determine the effect of sawdust ash and lime (Ca(OH)2) on soil characteristics and yield of sunflower in acidic soil of southeastern Nigeria. Study Design: The experiment was laid out in split-plot design, using sawdust ash (0, 1, 2, 3, 4 t ha-1) as the sub plot and lime (0, 0.5, 1.0, 1.5 t ha-1) as the main plot. Place and Duration of Study: Study was conducted outdoors at Michael Okpara University of Agriculture Umudike, Nigeria, during the 2010 planting season. Materials and Methods: Treatment combinations were applied to the 60 buckets containing soil, mixed thoroughly and watered adequately. After 1 week of treatment application, two sunflower seeds were planted and later thinned to one seedling per bucket. Plant growth and yield data were collected. Pre planting and post-harvest soil samples were collected and analyzed for soil properties. Results: Results showed that with the exception of organic carbon there was significant effect of treatments on all soil chemical properties. Lime and sawdust ash (SDA) as single and combined treatments significantly increased total nitrogen (P=0.05), available phosphorus (P<0.010), and base saturation (P<0.012). The interaction between SDA and lime significantly (P=0.05) increased total exchangeable bases and effective cation exchange capacity, while soil pH was significantly increased (P=0.05) by single applications. The increases in soil chemical properties led to significant positive response of the sunflower. With the exception of number of leaves, other plant parameters (Plant height, stem diameter, head weight, 50 seed weight, head diameter) had significant increases for sawdust ash alone at P=0.05. Correlation studies showed positive significant relationship between soil pH and sunflower yield. Conclusion: The study showed that sunflower performed best at the combination of 3 tha-1 SDA and 1.5 t ha-1 lime producing a mean head weight of 45.4 g.


2020 ◽  
Vol 5 (1) ◽  
pp. 11
Author(s):  
Dian Syafitri Ompusunggu ◽  
Benito Heru Purwanto ◽  
Cahyo Wulandari ◽  
Sri Nuryani Hidayah Utami

The low yield of rice in thick peat can be overcome by provisioning complete nutrients. Various efforts have been made to increase the productivity of Indonesian peatlands, one of which is by adding salted fish waste and cow manure. This research was carried out on a plastic house scale from October 2017 to January 15, 2018, in Pelalawan District, Pelalawan Regency, Riau. This research was arranged in a Completely Randomized Design (CRD), consisting of eight treatments, namely L0 = Control, L1 = 1.5 ton.ha-1 of fish waste, L2 = 2.25 ton.ha-1 of fish waste, L3 = 7 tons/ha of cow manure, L4 = 15 ton.ha-1 of cow manure, L5 = 1.5 ton.ha-1 of fish waste + 7 ton.ha-1 of cow manure, L6 = 1.5 ton.ha-1 of fish waste + 15 ton.ha-1 of cow manure, L7 = 2. 25 ton.ha-1 of fish waste + 7 ton.ha-1 of cow manure, and L8 = 2.25 ton.ha-1 of fish waste + 15 ton.ha-1 of cow manure. The results showed that the application of cow manure and salted fish waste could increase soil pH, total NPK, and NPK uptake. The application of 2.25 tons/ha of fish waste and 15 tons/ha of cow manure resulted the best results in soil pH, total NPK, and NPK uptake, therefore it is recommended for the cultivation of lowland rice on peat soil.


2021 ◽  
Vol 2 (2) ◽  
pp. 185
Author(s):  
Eva Fitriyaningsih

Background: Using young breadfruit to increase the breadfruit usability and economic value, one of the efforts is through the enrichment of the type of processed breadfruit products, breadfruit provides nutritional value that is beneficial to health, one of the help of breadfruit is increasing breadfruit for shredded products.Objectives: This study aims to find out how to improve young breadfruit 20%, 30%, 40% of the chemical properties (carbohydrate, protein, and fiber) of shredded tuna.Methods: This study used an experimental design with a non-factorial Completely Randomized Design (CRD) with three preparations and three repetitions. Then the chemical tests (carbohydrate, protein, and fiber) at the Laboratory of Animal Nutrition and Feed Technology of the Faculty of Agriculture, Syiah Kuala University, Banda Aceh.Results: The study results showed actual participation in young breadfruit 20%, 30%, and 40% of the chemical properties (carbohydrate, protein, and fiber) in shredded tuna with a p-value < 0.05.Conclusion: Agreeing that 20%, 30%, and 40% of young breadfruit were approved for shredded tuna's chemical properties (carbohydrate, protein, and fiber).


2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Fikeremareyam Chulo ◽  
Fanuel Laekemariam ◽  
Alemayehu Kiflu

Understanding the nutrient dynamics in acid soil is fundamental to carry out proper management. The study was conducted to investigate phosphorus (P) pools and selected properties under different rates of lime for acid nitisols of Farawocha, Southern Ethiopia. Four lime rates incubated for a month in three replications were tested. The lime rates were 0 t/ha (0%), 5.25 t/ha (50%), 10.5 t/ha (100%), and 15.75 t/ha (150%). Lime requirement (LR) for 100% was calculated targeting soil pH of 6.5. Data on the P pools such as soluble P (P-sol) and bounded forms of P with iron (Fe-P), aluminum (Al-P), calcium (Ca-P), organic part (Org-P), residual P (Res-P), and total of P fractions were measured. In addition, changes in soil chemical properties such as pH, exchangeable acidity, calcium (Ca), magnesium (Mg), sulfur (S), iron (Fe), copper (Cu), boron (B), zinc (Zn), and manganese (Mn) were analyzed. The result showed that total P was 357.5 mg/kg. Compared to nontreated soil, liming at a rate of 15.75 t/ha significantly improved P-sol (34.2%, r2 = 0.88), Ca-P (61.6%, r2 = 0.92), and Res-P (195%, r2 = 0.94); however, it reduced Fe-P (58.5%, r2 = −0.83), Al-P (71%, r2 = −0.97), and Org-P (19.1%, r2 = 0.93). Overall, the P-associated fractions in the soil, regardless of the lime rates, were in the order of Org_P > Res_P > Fe_P > Ca_P > Al_P > P-sol. Liming raised soil pH by 2.1 units (4.5 to 6.6) over nonlimed soil, whereas it reduced exchangeable acidity from 4.18 to 0.23 meq/100 g soil. Available P, Ca, Mg, S, Cu, Zn, and B contents were significantly improved with lime application. However, liming reduced Fe and Mn contents. In conclusion, these findings showed that liming facilitated the release of P from various pools, modified pH and exchangeable acidity, and resulted in beneficial changes for most of the soil chemical properties.


2020 ◽  
Author(s):  
Yadesa Bato ◽  
Tamrat Bekele ◽  
Sebsebe Demissew

Abstract Background: Soil chemical properties have changed under different land-use systems and soil depth layers either by increasing or decreasing. Hence, scientifically information on the soil chemical properties dynamics under different land-use systems and soil depths are crucial for best land management practices, and to avoiding ecological negative impacts of it for sustainable development. The study aimed to evaluate the soil chemical properties dynamics under different land-use systems and soil depths in the central highlands of Ethiopia. The land-use systems included natural forest, four exotic tree plantation species (Eucalyptus globules, Cupressus lusitanica, Grevillea robusta, and Pinus patula), grassland, grazing land, and cropland. Results: The analysis of variance (ANOVA) for the majority of soil chemical properties of OC, TN, Avial. P, soil pH, EC, CEC, and exchangeable bases (Ca, Mg, K, Na) were showed that significant variations among land-use systems (P<0.0001). The highest mean values of OC (3.49 % DM ), TN ( 0.31 % DM) , Avail.P (31.52 mg/kg of soil ), CEC ( 33.63 meq/100gm soil), Exch. Ca (17.13 cmol(+)/kg soil), Exch. Mg (5.37 cmol(+)/kg soil), and Exch. K ( 3.60 cmol(+)/kg soil) were observed under natural forest than others of land-use systems. The results also showed that the lowest mean values of OC (1.47 % DM), TN (0.13 %DM), soil pH (5.38), CEC (18.98 meq/100gm soil), Exch. Ca (9.93 cmol(+)/kg soil), Exch. K (1.20 cmol(+)/kg soil), and Exch. Na (0.22 cmol(+)/kg soil) were recorded under cropland than other land-use systems. The highest mean values of EC (3.47ds/m), and Exch. Na (0.60 cmol(+)/kg soil) were observed under Eucalyptus globulus plantation forest. The overall mean values of OC, TN, Avail.P, CEC, Exch. Mg, Exch. Ca, Exch. K, and Exch. Na accumulation at the topsoil layer was higher than that of the subsoil layer except for soil pH and EC. Conclusion: In general, the majority of soil chemical properties under cropland and Eucalyptus globulus plantation forest were poorer than the soils subjected to other land-use systems which indicated that changes in land use systems were significantly affected soil chemical properties.


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