scholarly journals Efficiency of various sources and doses of humic acid on physical and chemical properties of saline soil and growth and yield of rice

2018 ◽  
Author(s):  
Wanti Mindari ◽  
Purnomo Edi Sasongko ◽  
Zaenal Kusuma ◽  
Syekhfani ◽  
Nurul Aini
Keyword(s):  
Humic Acid ◽  
Saline Soil ◽  
Chemical Properties ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
And Chemical Properties

Response of corn (Zea mays L.) to various organic-based fertilizers in marginal upland of Sta. Rita, Samar

2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno
Keyword(s):  
Block Design ◽  
Management Strategies ◽  
Chemical Properties ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Total N ◽  
Randomized Complete Block Design ◽  
Physical And Chemical ◽  
And Chemical Properties

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.

scholarly journals SOIL PHYSICAL AND CHEMICAL PROPERTIES AND COCOYAM YIELD UNDER DIFFERENT TILLAGE SYSTEMS IN A TROPICAL ALFISOL

2011 ◽  
Vol 47 (3) ◽  
pp. 477-488 ◽  
Author(s):  
A. O. ADEKIYA ◽  
S. O. OJENIYI ◽  
T. M. AGBEDE
Keyword(s):  
Bulk Density ◽  
Chemical Properties ◽  
Soil Bulk Density ◽  
Soil Chemical Properties ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Southwest Nigeria ◽  
Physical And Chemical ◽  
Tillage Methods ◽  
And Chemical Properties

SUMMARYExperimental data on tillage requirement of cocoyam (Xanthosoma sagittifolium) are needed to identify the most suitable tillage methods for managing the fragile Alfisols of the humid tropics to ensure sustained productivity. Hence, five tillage methods were compared as to their effects on soil physical and chemical properties, and growth and yield of cocoyam on an Alfisol at Owo in the forest-savanna transition zone of southwest Nigeria. The experiment consisted of five tillage methods: manual clearing (MC), manual ridging (MR), manual mounding (MM), ploughing + harrowing (P + H) and ploughing + harrowing twice (P + 2 H) were used for three years at two sites in a randomized complete block design with three replications. In the first two years (2007 and 2008), P + H produced the least soil bulk density and highest growth and yield, whereas in the third year (2009), MC produced the lowest soil bulk density and best performance of cocoyam. Manual clearing produced the best values of soil chemical properties in 2008 and 2009. Averaged over the three years, P + H, MR and MM had lower soil bulk density hence better growth and yield compared with P + 2 H and MC. Over the three years MC, MM, MR and P + H increased cocoyam cormel yield by 10, 21, 23 and 32%, respectively, over P + 2 H.The corresponding increases in corm yield were 7, 15, 13 and 21%, respectively. The multiple regressions revealed that bulk density and moisture content significantly influenced the yield of cocoyam. Soil chemical properties were not significant. Bulk density rather than soil chemical properties dictated the performance of cocoyam in an Alfisol of southwest Nigeria. Soil quality was degraded by P + 2H. For small farms, either MR or MM is recommended while P + H is recommended for large-scale farming of cocoyam.

scholarly journals Identification of Dyes in Paper for Tobacco Products with Particular Consideration of Humic Acid/Identifizierung von Farbstoffen bei Papieren für Tabakerzeugnisse unter besonderer Berücksichtigung der Huminsäure

1978 ◽  
Vol 9 (5) ◽  
pp. 297-307
Author(s):  
R. Jodl
Keyword(s):  
Humic Acid ◽  
Analytical Procedure ◽  
Chemical Properties ◽  
Isoamyl Alcohol ◽  
Amyl Alcohol ◽  
Physical And Chemical Properties ◽  
Tobacco Products ◽  
Food Law ◽  
Physical And Chemical ◽  
And Chemical Properties

Abstract After a brief look at the food law situation, the particular problems of the presence of humic acid in paper are dealt with. Origin and significance as well as physical and chemical properties of humic acid are described. The principle of the method of analysis is that the dyes transferred from the paper to an aqueous solution are freed of humic acid by acidification and extracted from the centrifugate, using isoamyl alcohol. The concentrated aqueous eluate from the amyl alcohol is examined paper chromatographically. The Rf figures for the dyes after their said preparation are quoted and the analytical procedure explained by means of examples.

Sustainable Urban Horticulture of Sweet Pepper via Vermicomposting in Summer Season

2014 ◽  
Vol 3 (1) ◽  
pp. 110-122
Author(s):  
Abul Soud ◽  
M. A., M. S. A. Emam ◽  
M. A. A. Abdrabbo ◽  
F. A. Hashem ◽  
Shaimaa H. Abd-Elrahman
Keyword(s):  
Vegetative Growth ◽  
Chemical Properties ◽  
Sweet Pepper ◽  
Summer Season ◽  
Growth And Yield ◽  
Peat Moss ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
Urban Horticulture ◽  
And Chemical Properties

The need for extend the urban horticulture to cover the food security demands, to mitigate CO2 emissions and avoid the extreme heat waves drive this study to investigate the ability of using soilless culture systems, vermicomposting technology and net cover in producing vegetables in urban area in summer season. The aim of this study was to determine the effect of different vermicompost rates mixed with the standard substrate peat moss: perlite (perlite: peat moss: vermicompost (45:45:10) (Mix.10%), perlite: peat moss: vermicompost (40:40:20) (Mix.20%), perlite: peat moss: vermicompost (35:35:30) (Mix.30%) and perlite: peat moss (50:50 V/V) (Control) under three microclimate conditions (plants covered with black net, white net and without cover) on vegetative growth and yield of sweet pepper (Capsicum annuum L. cv. Reda) grown in pots culture during summer seasons of 2012 and 2013 at the Central Laboratory for Agricultural Climate, Agricultural Research Center, Dokki, Giza Governorate. Physical and chemical properties of substrates, vegetative growth and yield characteristics, agrometerological data and mineral contents were determined. The obtained data indicated that vermicomposting could contribute in mitigate CO2 emission, save the essential nutrients and energy via recycling the urban organic wastes to vermicompost. The physical and chemical properties were affected by vermicompost. The best vegetative growth and yield of sweet pepper were given by (Mix.20%) vermicompost mixture followed by (Mix.10%) and (Mix.30%) vermicompost mixture. There were also significant differences between cover net treatments in affecting vegetative growth and yield of pepper, the white net was superior for producing pepper during the summer season; while the black net gave the lowest plant growth and yield. The best treatment was (Mix.20%) vermicompost mixture with white net cover, while the lowest vegetative growth and yield were obtained by (Control) vermicompost mixture with black cover net during the two tested seasons. These results suggested that vermicomposting and green roof can be used in urban area for producing food instead of incineration the urban organic wastes or imported food from rural area and using white cover net to improve the pepper growth and productivity during summer season.

scholarly journals Biochar, poultry manure and NPK fertilizer: sole and combine application effects on soil properties and ginger (Zingiber officinale Roscoe) performance in a tropical Alfisol

2020 ◽  
Vol 5 (1) ◽  
pp. 30-39 ◽  
Author(s):  
Aruna Olasekan Adekiya ◽  
Taiwo Michael Agbede ◽  
Wutem Sunny Ejue ◽  
Christopher Muyiwa Aboyeji ◽  
Oluwagbenga Dunsin ◽  
...  
Keyword(s):  
Physical Properties ◽  
Soil Properties ◽  
Poultry Manure ◽  
Chemical Properties ◽  
Soil Physical Properties ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Npk Fertilizer ◽  
Physical And Chemical ◽  
And Chemical Properties

AbstractBiochar has a low chemical composition and is recalcitrant to degradation. For good soil fertility and nutrient use efficiency of crops it becomes imperative that addition of a fast releasing nutrient source to biochar be sought. Therefore, studies were conducted in 2017 and 2018 to evaluate the effects of biochar with poultry manure (PM) and NPK fertilizer on soil properties, growth and yield of ginger. Treatments evaluated were: biochar applied alone at 15 t ha-1 , PM applied alone at 15 t ha-1, NPK fertilizer applied alone at 200 kg ha-1, biochar applied at 15 t ha-1 with poultry manure applied at 15 t ha-1 (B+PM), biochar applied at 15 t ha-1 with NPK fertilizer applied at 200 kg ha-1 (B+NPK) and a control with no amendment whatsoever. The experimental design was a randomized complete block design with three replications. Biochar, PM, NPK fertilizer alone or B+PM and B+NPK improved soil physical and chemical properties, growth and yield of ginger compared to no amendment (control). NPK fertilizer did not improve soil physical properties nor increased pH, OM, Ca and Mg significantly. B+PM and B+NPK improved soil physical and chemical properties, growth and ginger yield compared to their sole forms. Although B+PM had better soil physical properties, B+NPK increased yield and growth of ginger compared to B+PM. B+NPK increased the yield of ginger by 12.2% and 10.6% in 2017 and 2018, respectively compared with B+PM. B+NPK also increased the yield of ginger by 49.2% and 50.3% in 2017 and 2018, respectively compared to biochar alone. This was related to high presence of nutrients in B+NPK especially N and K which are important for ginger rhizome formation.

scholarly journals PENGARUH PUPUK BOKASIH TERHADAP PERTUMBUHAN, HASIL, SERTA SIFAT FISIK DAN KIMIA TANAH PADA TANAMAN CABAI (Capsicum annuum L.)

AGRICA ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 1-9
Author(s):  
Julianus Jeksen
Keyword(s):  
Pore Space ◽  
Block Design ◽  
Chemical Properties ◽  
Growth And Yield ◽  
Optimum Dose ◽  
Physical And Chemical Properties ◽  
Total Soil ◽  
Physical And Chemical ◽  
Pepper Plants ◽  
And Chemical Properties

This study was conducted to determine the effect bokashi fertilizer on the growth and yield of pepper plants, soil physical and chemical properties as well as the optimum dose of fertilizer bokashi.  The design used in this experiment is a randomized block design (RAK) to the single factor pattern consisting of five treatments, namely: B0: 0 tonnes ha-1, B1: 5 tonnes ha-1, B2: 10 ton ha-1, B3: 15 ton ha-1 and B4: 20 tonnes ha-1. The variables were observed in this study is was a high plant (cm), a number of leaves tan-1 (strands), leaf area (cm2), fresh weight of fruit tan-1 (g tan-1) and ha-1 (ton ha-1 ), the soil volume weight (bulk density) (g cm-3), total soil pore space (%), total soil N, P-available land, available K-land, C-organic soil and soil pH. The results showed a significant influence on the variable crop growth and yield of pepper plants. Bokashi fertilizer application also provides improved physical and chemical properties of soil. Bokashi fertilizer use 20 tonnes ha-1 is the optimum dose that increases the weight of fresh chilli ha-1 as much as 26.63 tons.

scholarly journals Effects of Different Organic Amendment Sources on the Physico Chemical Properties of A Nutrient Depleted Vertisol

2019 ◽  
pp. 68-73
Keyword(s):  
Soil Degradation ◽  
Chemical Properties ◽  
Total Porosity ◽  
Growth And Yield ◽  
Control Treatment ◽  
Physical And Chemical Properties ◽  
Mushroom Compost ◽  
Total N ◽  
Physical And Chemical ◽  
And Chemical Properties

The decline in soil organic matter, nutrient depletion, and loss of soil fertility due to soil degradation contribute to low agricultural productivity. Organic amend- ments (OAs) have the potentials to reverse soil degradation processes by improv- ing the soil's physical and chemical properties and consequently improve crop growth and yield performance. At Cranfield University, United Kingdom, a greenhouse study investigated the effects of Mushroom Compost, Anaerobic Di- gestate Waste, and Poultry Manure amendments applied at 10 t ha-1 and 30 t ha-1 equivalent rates on the physical and chemical properties of degraded soil. The treatments were laid out in the greenhouse in a completely randomized design replicated four times. The results showed that all the OA treatments significantly increased the soil water holding capacity, total porosity, and significantly reduced bulk density when compared with the un-amended control treatment. Further, the OA treatments showed significant increases in the soil Total-P, Olsen-P, Total-N, total oxides of N, ammonium-N, Available-K, and Available-Mg, relative to the control treatment. The results demonstrate the effectiveness of these OAs in im- proving soils’ physical and chemical properties, and so enhancing soil health and overall ecosystem functioning. The study demonstrated that these OAs improve the physicochemical properties of degraded so

scholarly journals Influence of Tithonia Diversifolia on Maize (Zea mays L.) Yield, Fertility and Infiltration Status of Two Clay Varied Soils

2019 ◽  
Vol 8 (1) ◽  
pp. 114-119
Author(s):  
Olufemi Gabriel Dayo-Olagbende ◽  
Oluwawemimo Omowumi Akingbola ◽  
Gbolahan Saheed Afolabi ◽  
Babatunde Sunday Ewulo
Keyword(s):  
Zea Mays ◽  
Soil Properties ◽  
Zea Mays L ◽  
Chemical Properties ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Tithonia Diversifolia ◽  
Total N ◽  
Physical And Chemical ◽  
And Chemical Properties

Towards a more sustainable soil management through recycling of readily available weeds in Akure, Nigeria, different rates of Tithonia diversifolia (tithonia) were compared on a field trial to evaluate its effect on soil properties. The experiment was sited at two locations in South gate of the Federal University of Technology, Akure. Prior to the field establishment, a composite soil sample was collected and analyzed for physico-chemical properties. The sites were cleared and tilled. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replicates. The treatments consisted of three levels of tithonia application which are 0, 3 and 6 t ha-1. Each experimental unit size was 2 m x 2 m with 1 m alleyway. Maize (Zea mays L. var.TZB-SR) seeds were sown at a spacing of 75 cm by 25 cm and 10 were randomly sampled per plot for growth and yield parameters. Data were collected on maize yield and soil physical and chemical properties after harvest to ascertain sustainability of the mulch material after cropping. Application of tithonia mulch improved growth, and yield indices of maize as well as soil physical and chemical properties. The contents of soil total N, exchangeable cations, , CEC, Organic matter content, total porosity, moisture content and infiltration rate were found to significantly (p>0.05)  increase in treatments with tithonia mulch. The best result was from the application rate 6 tha-1 because it improved and left the soil conserved after harvesting maize. Similar trends were observed at the two sites despite variation in inherent soil properties.

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