scholarly journals Growth and K Nutrition of Sesame (Sesamum indicum L.) Seedlings as Affected by Balancing Soil Exchangeable Cations Ca, Mg, and K of Continuously Monocropped Soil from Upland Fields Converted Paddy

Agronomy ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 819 ◽  
Author(s):  
Cosmas Wacal ◽  
Naoki Ogata ◽  
Daniel Basalirwa ◽  
Daisuke Sasagawa ◽  
Tsugiyuki Masunaga ◽  
...  
Keyword(s):  
Rice Husk ◽  
Dry Weight ◽  
Exchangeable Cations ◽  
Inorganic Fertilizer ◽  
Future Research ◽  
Cation Uptake ◽  
K Concentration ◽  
Rice Husk Biochar ◽  
One Year ◽  
The One

Growth of sesame is known to be limited by poor K nutrition as a result of imbalance in soil exchangeable cations that cause a competitive ion effect in continuous monocropping from upland fields converted paddy. We hypothesized that balancing soil exchangeable cations will improve the K nutrition and growth of sesame plants. Therefore, the specific objectives of this study were to determine the effect of balancing soil exchangeable cations Ca, Mg, and K of continuously monocropped soils on the growth and cation uptake of sesame seedlings and also identify a suitable source of nutrients for improving K nutrition. A pot experiment was conducted under greenhouse condition in a 3 × 3 factorial design consisting of three levels of balancing treatments i.e. inorganic fertilizer for Ca, Mg, and K, rice husk biochar to increase K content, and the three durations of continuous monocropping soils of one year, two years, and four years from upland fields converted paddy. Balancing soil exchangeable cations was aimed at achieving optimal base saturations (CaO, 75%; MgO, 25%; and K2O, 10%). Results showed that balancing exchangeable cations did not significantly affect growth and cation uptake in the one and two-year soils but significant effect was observed in the four-year soil. Overall, plant height and dry weight increased for the balancing treatments of inorganic fertilizer K and rice husk biochar. Balancing exchangeable cations with biochar was more beneficial than with inorganic fertilizers. The four-year soil’s growth increase was attributed to an increase in K concentration and uptake due to the decrease in the soil Ca/K and Mg/K ratios to that of acceptable levels, which eliminated competitive ion effect as the soil K saturation increased above 5.0%, enhancing sesame growth. Therefore, a balanced soil exchangeable Ca, Mg, and K that eliminates a competitive ion effect will improve sesame growth and K nutrition although future research should focus on ensuring balanced cation rations under field conditions in continuous monocropping.

scholarly journals Biomass yield and energy efficiency of willow depending on cultivar, harvesting frequency and planting density

2019 ◽  
Vol 65 (No. 8) ◽  
pp. 377-386 ◽  
Author(s):  
Bogdan Kulig ◽  
Edward Gacek ◽  
Roman Wojciechowski ◽  
Andrzej Oleksy ◽  
Marek Kołodziejczyk ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Dry Matter ◽  
Plant Density ◽  
Calorific Value ◽  
Dry Weight ◽  
Planting Density ◽  
High Yield ◽  
Full Production ◽  
One Year ◽  
The One

The study aimed at comparing the yield of dry biomass and energy efficiency of 22 willow cultivars depending on the harvesting frequency and variable plant density. The field experiment was established in 2010. The willow cultivars were planted in two densities; 13 300 and 32 500 plants per ha. Among the compared cultivars in the second year (2013) of full production, high yield of dry matter was obtained from cvs. Tordis (33.1 t/ha/year), Inger (30.4 t/ha/year) and Klara (29.0 t/ha/year). After six years of cultivation, the highest aboveground dry matter was given by cvs. Tora (27.4 t/ha/year) and Tordis (27.0 t/ha/year). The gross calorific value of willow biomass ranged from 15.2–20.1 GJ/t dry weight. Greater energy efficiency (329.3 GJ/ha/year) occurred in willow cultivars collected in a two-year cycle than in the one-year cycle (286.4 GJ/ha/year). In the two-year cycle collected in the third year after planting, energy efficiency was greater (379.5 GJ/ha/year) than in the two-year cycle harvested in the sixth year after planting (279.15 GJ/ha/year). The initial slower growth of biomass does not determine plant yielding.

scholarly journals Respons Benih Kakao Terhadap Amelioran, Mikrob Pelarut Fosfat, dan Pupuk Fosfat pada Tanah Masam

2020 ◽  
Vol 7 (1) ◽  
pp. 39
Author(s):  
Kurnia Dewi Sasmita ◽  
Iswandi Anas ◽  
Syaiful Anwar ◽  
Sudirman Yahya ◽  
Gunawan Djajakirana
Keyword(s):  
Acid Phosphatase ◽  
Rice Husk ◽  
Phosphate Rock ◽  
Acid Soil ◽  
Block Design ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Available P ◽  
Growing Media ◽  
Rice Husk Biochar

<em>The growth of cacao in acid soils is commonly limited by some problems such as low available P and pH, and high Al saturation. Therefore, research is needed to solve the problem of coffee cultivation in acid soil. This study aimed to determine the effect of ameliorant, phosphate solubilizing microbes (PSM), and phosphate fertilizers (P) on the growth and nutrient uptake of cacao seedlings, and some acid soil properties. The study used a randomized block design with 3 factors and 3 replications. The first factor was ameliorant applications (without ameliorant, 10% organic fertilizer, 4% rice husk biochar, 4% rice husk biochar + 10% organic fertilizer). The second factor was PSM applications: without PSM, Burkholderia ambifaria (BPF) inoculants, and Aspergillus niger (FPF) inoculants. The third factor was P fertilizers applications (without Phosphate Rock (PR), 100, 200, and 400 mg P/kg of PR, and 400 mg P/kg of SP-36). The results showed that the applications of 4% rice husk biochar + 10% organic fertilizer + BPF or FPF inoculants increase the number of leaves by 77.9% and 69.2%, respectively, and increase the dry weight of shoot by 93.6 % and 101.9%, respectively. Phosphate rock application in media without organic fertilizer increases dry weight of shoots and roots of cacao seedlings, and the uptake of P, Ca, and Mg in shoots linearly in line with the increase of PR dose to 400 mg P/kg. Application of rice husk biochar significantly increased the acid phosphatase activity of growing media. Meanwhile, organic fertilizer increased the soil pH, acid phosphatase and available P activity, and decreased Al-dd growing media.</em>

scholarly journals Mitigation of Salinity Stress in Soybean Using Organic Amendments

2018 ◽  
Vol 21 (1) ◽  
pp. 39-50
Author(s):  
J Ferdous ◽  
MA Mannan ◽  
MM Haque ◽  
MS Alam ◽  
S Talukder
Keyword(s):  
Plant Height ◽  
Salinity Stress ◽  
Rice Husk ◽  
Water Hyacinth ◽  
Tap Water ◽  
Organic Amendments ◽  
Dry Weight ◽  
Soybean Plant ◽  
Positive Effects ◽  
Rice Husk Biochar

A pot experiment was carried out in semi-controlled condition at the Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur from November 2015 to March 2016 to assess the effect of organic amendments to mitigate salinity stress in Soybean var. BARI soybean 5. Two types of organic amendments i) water hyacinth compost and ii) rice husk biochar were mixed in soil @ 5 and 10 t ha-1 of both. Saline solution was prepared by adding tap water in seawater to make 5 and 10 dS m-1 salinity respectively. Plants were irrigated with the salt solution from 14th day after sowing (DAS) to maturity and the control plants were irrigated with tap water. Data on different parameters like plant height, leaf, stem, root dry matter and yield contributing parameters were recorded at harvest. Experimental results revealed that salinity decreased plant height, dry weight of leaf, stem and root as well as yield of soybean plant-1. Application of water hyacinth compost and rice husk biochar had positive effects on mitigating the negative effects of salinity stress on all those parameters studied. However, rice husk biochar at the rate of 5 t ha-1 showed best result to mitigate salinity stress at low salinity (5 dSmdS m-1 condition. Bangladesh Agron. J. 2018, 21(1): 39-50

scholarly journals PENGARUH BIOCHAR SEKAM PADI DAN KOMPOS TERHADAP C-ORGANIK, N-TOTAL, C/N TANAH, SERAPAN N, DAN PERTUMBUHAN TANAMAN JAGUNG DI ULTISOL

2021 ◽  
Vol 8 (2) ◽  
pp. 451-460
Author(s):  
Geraldine Abel ◽  
Retno Suntari ◽  
Ania Citraresmini
Keyword(s):  
Rice Husk ◽  
N Uptake ◽  
Chemical Properties ◽  
Dry Weight ◽  
Nutrient Content ◽  
Soil Chemical Properties ◽  
Maize Crop ◽  
Maize Production ◽  
Maize Plants ◽  
Rice Husk Biochar

The maize crop is an important commodity other than rice in Indonesia. Maize production reached 30 million tons in 2018. Efforts that can be made to increase maize production on Ultisols in Indonesia is by the application of biochar rice husk and compost. Biochar that has a high affinity for nutrients does not experience decay in the soil for decades, while compost can improve soil chemical properties by increasing nutrient content. The purpose of this study was to analyze the effect of the application of a combination of rice husk biochar and compost on soil chemical properties, N uptake, and growth of maize on an Ultisol. This study was conducted with six treatments. The results showed that the application of a combination of rice husk biochar and compost had an effect on increasing the C-organic and N-total in soil, but it did not affect the C/N of the incubated soil. Application of a combination of 8 t rice husk biochar ha-1 and 30 compost ha-1 significantly improved plant height, dry weight, and N uptake of maize plants.

scholarly journals Relationships between Douglas fir seedling growth and levels of some soil and tissue nutrients

1969 ◽  
Vol 45 (4) ◽  
pp. 273-277
Keyword(s):  
Seedling Growth ◽  
Dry Weight ◽  
Nutrient Supply ◽  
Douglas Fir ◽  
Available P ◽  
Concentration Increase ◽  
P Concentration ◽  
K Concentration ◽  
One Year ◽  
Calcium Superphosphate

Growth of Douglas fir seedlings was increased by application of calcium superphosphate to a nursery soil containing 56 ppm available P. Under nursery conditions of nutrient supply growth was seriously limited when tissue P concentration of one-year old seedling was near 0.18% or lower. At higher tissue P concentrations growth was apparently dependent on tissue K concentration. Increase of soil Mg level above 1.5 m.e.q./100 g. soil depressed growth. Under greenhouse conditions 61% of seedling variation in dry weight was accounted for by considering concentration of 6 tissue nutrients but under nursery conditions only 41% of variation was accounted for by 5 tissue nutrients.

scholarly journals Telemedicine and Integrated Multidisciplinary Care for Pediatric IBD Patients: A Review

Children ◽  
2021 ◽  
Vol 8 (5) ◽  
pp. 347
Author(s):  
Lauren M. Potthoff
Keyword(s):  
Multidisciplinary Treatment ◽  
Multidisciplinary Care ◽  
Standard Of Care ◽  
Future Research ◽  
Global Pandemic ◽  
Inflammatory Bowel ◽  
Virtual Platform ◽  
One Year ◽  
The One ◽  
Pediatric Ibd

The global COVID-19 pandemic brought with it an unprecedented, widespread implementation of telemedicine services, requiring pediatric inflammatory bowel disease (IBD) providers to shift in-person clinic visits to a virtual platform. With the passing of the one-year anniversary of the global pandemic, telemedicine continues to be offered and utilized. Although it remains unclear as to the extent to which telemedicine services will be used in the future, it is critical to understand how integrated multidisciplinary treatment—the standard of care in pediatric IBD—is delivered through a virtual platform. This paper provides an overview of the existing literature examining integrated multidisciplinary care for pediatric IBD provided via telemedicine. The author also presents one integrated multidisciplinary IBD program’s response to the global pandemic and subsequent transition to telemedicine. Challenges around implementation and directions for future research in this area are also discussed.

Resources: Internet Resources for the Independent Medical Evaluator – 2007

2007 ◽  
Vol 12 (4) ◽  
pp. 4-7
Author(s):  
Christopher R. Brigham ◽  
Jenny Walker
Keyword(s):  
Head Trauma ◽  
Clonic Seizure ◽  
Acute Subdural Hematoma ◽  
Orbital Fracture ◽  
Orbital Wall ◽  
First Occurrence ◽  
One Year ◽  
The One ◽  
Neurological Injuries ◽  
Medial Orbital Wall

Abstract Rating patients with head trauma and multiple neurological injuries can be challenging. The AMA Guides to the Evaluation of Permanent Impairment (AMA Guides), Fifth Edition, Section 13.2, Criteria for Rating Impairment Due to Central Nervous System Disorders, outlines the process to rate impairment due to head trauma. This article summarizes the case of a 57-year-old male security guard who presents with headache, decreased sensation on the left cheek, loss of sense of smell, and problems with memory, among other symptoms. One year ago the patient was assaulted while on the job: his Glasgow Coma Score was 14; he had left periorbital ecchymosis and a 2.5 cm laceration over the left eyelid; a small right temporoparietal acute subdural hematoma; left inferior and medial orbital wall fractures; and, four hours after admission to the hospital, he experienced a generalized tonic-clonic seizure. This patient's impairment must include the following components: single seizure, orbital fracture, infraorbital neuropathy, anosmia, headache, and memory complaints. The article shows how the ratable impairments are combined using the Combining Impairment Ratings section. Because this patient has not experienced any seizures since the first occurrence, according to the AMA Guides he is not experiencing the “episodic neurological impairments” required for disability. Complex cases such as the one presented here highlight the need to use the criteria and estimates that are located in several sections of the AMA Guides.

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