scholarly journals Humic acid, an effective amendment used for amelioration of Phosphatic fertilizer and enhancing maize yield

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Zaheer Ahmad
Keyword(s):  
Humic Acid ◽  
Maize Yield ◽  
Phosphatic Fertilizer

scholarly journals Associations Between Different Soil Management Practices, Soil Fauna and Maize Yield

2018 ◽  
Vol 10 (9) ◽  
pp. 333 ◽  
Author(s):  
Ana Luiza Privado Martins ◽  
Glécio Machado Siqueira ◽  
Emanoel Gomes de Moura ◽  
Raimunda Alves Silva ◽  
Anágila Janenis Cardoso Silva ◽  
...  
Keyword(s):  
Humic Acid ◽  
Grain Yield ◽  
Management Practices ◽  
Soil Fauna ◽  
Block Design ◽  
Soil Management ◽  
Maize Yield ◽  
Maize Grain Yield ◽  
Wiener Diversity Index ◽  
Maize Grain

Soil fauna play an important role in ecosystems, and in this context, it is important to better understand how the abiotic and biotic drivers of these organisms interact. We hypothesize that soil fauna are affected by different soil management practices, which has an influence on maize grain yields. The aim of this study was to evaluate the structure of soil fauna under different soil management practices and their associations with maize grain yield. The experiment was conducted in Maranhão, Brazil, in an area divided into 24 plots of 4 × 10 m in a randomized block design with six treatments with four replicates (R). Pitfall traps were placed in the area. The treatments were Leucaena leucocephala-Leucaena (L), nitrogen (N), humic acid + nitrogen (HA + N), nitrogen + Leucaena (N + L), humic acid + Leucaena (HA + L) and humic acid + nitrogen + Leucaena (HA + N + L). The soil fauna dominance, abundance, richness, Shannon-Wiener diversity index, Pielou evenness index and maize grain yield were determined. Formicidae was clearly affected by management with Leucaena, while Coleoptera was affected by management with nitrogen. Despite this, Isopoda and Diplura were the only groups associated with the maize yield. Although fauna abundance did not differ among treatments, it was related to the yield. This study confirms that the abundance and some taxa of soil fauna can influence yield and that these organisms can be used to increase agricultural sustainability.

scholarly journals Influence of Super Absorbent Polymer and Humic Acid on Maize Yield and Nutrient Uptake on Rainfed Alfisols

2021 ◽  
pp. 97-106
Author(s):  
Kasthuri Rajamani ◽  
K. Indudhar Reddy ◽  
A. Srinivas
Keyword(s):  
Humic Acid ◽  
Nutrient Uptake ◽  
Agricultural Research ◽  
Block Design ◽  
Maize Yield ◽  
Research Station ◽  
Positive Interaction ◽  
Super Absorbent Polymer ◽  
Plant Weight ◽  
Absorbent Polymer

The advances and development in agriculture depend not only on mechanization and new hybrid seeds but also on the improvement of soil physical and chemical properties which in turn help to increase crop productivity in dry land soils. A field study was carried out to study the influence of superabsorbent polymer at 2.5 and 4.5 kg ha-1and humic acid at 15 and 30 kg ha-1 alone and their combinations with recommended 100% fertilizers on yield, uptake, and photosynthetic pigments of maize grown on rainfed alfisols at Regional Agricultural Research Station, Palem, Telangana. The experiment was laid out in randomized block design with three replications, consisting of nine treatments. Further, results showed that conjoint application of [email protected] kg ha-1 + humic acid@30 kg ha-1 along with 100% RDF package significantly increased the pooled grain and stover yield (7136 and 8457 kg ha-1) of maize. Irrespective level of hydrogel and humic acid combinations with 100% RDF increased the macronutrient uptake by grain and stover, which further build up the total uptake. A similar pattern was also observed in corresponding to grain and stover yield.The chlorophyll “a”, “b” and total chlorophyll content (1.81, 1.69 1.54; 0.69, 0.62, 0.55 and 2.65, 2.46 and 2.24 mg g-1 in fresh plant weight at 30, 60 and 90 DAS) significantly influenced by application of [email protected] kg ha-1+ humic acid@30 kg ha-1.  In conclusion, the present investigation indicates the positive interaction between humic acid and super absorbent polymer which improved nutrient uptake and maize yield.

Effect of bentonite-humic acid application on the improvement of soil structure and maize yield in a sandy soil of a semi-arid region

Geoderma ◽  
2019 ◽  
Vol 338 ◽  
pp. 269-280 ◽  
Author(s):  
Lei Zhou ◽  
Carlos M. Monreal ◽  
Shengtao Xu ◽  
Neil B. McLaughlin ◽  
Huaying Zhang ◽  
...  
Keyword(s):  
Humic Acid ◽  
Sandy Soil ◽  
Arid Region ◽  
Soil Structure ◽  
Maize Yield ◽  
Semi Arid Region ◽  
Semi Arid

scholarly journals Effects of urea enhanced with different weathered coal-derived humic acid components on maize yield and fate of fertilizer nitrogen

2019 ◽  
Vol 18 (3) ◽  
pp. 656-666 ◽  
Author(s):  
Shui-qin ZHANG ◽  
Liang YUAN ◽  
Wei LI ◽  
Zhi-an LIN ◽  
Yan-ting LI ◽  
...  
Keyword(s):  
Humic Acid ◽  
Maize Yield ◽  
Fertilizer Nitrogen ◽  
Weathered Coal

scholarly journals Linkages among Soil Fertilization Regimes, Chemical Properties and Maize Grains Yield in Humid Tropic

2021 ◽  
Vol 10 (16) ◽  
pp. e366101623558
Author(s):  
Ana Luiza Privado Martins Feitosa ◽  
Glécio Machado Siqueira ◽  
Emanoel Gomes de Moura ◽  
Francisca Ferreira Farias ◽  
Alana das Chagas Ferreira Aguiar
Keyword(s):  
Humic Acid ◽  
Block Design ◽  
Soil Layer ◽  
Chemical Properties ◽  
Principal Component ◽  
Maize Yield ◽  
Northeastern Brazil ◽  
Available Phosphorus ◽  
Soil Fertilization ◽  
Chemical Attributes

We hypothesize that there is a linkage among different soil fertilization regimes, soil chemical attributes and maize grains yield. We aimed to evaluate the relationships between different soil fertilization regimes, soil chemical properties and maize grains yield. The experiment was performed in northeastern Brazil, in a randomized block design, at an area divided into 24 plots with six treatments and four replicates (Nitrogen (N); Leucaena (L); Nitrogen+Leucaena (N+L); Humic Acid+Leucaena (HA+L); Humic Acid+Nitrogen (HA+N) and Humic Acid+Nitrogen+Leucaena (HA+N+L)). Each plot was cropped with maize (Zea mays L.) and the grains yield was estimated. Soil samples were collected at depths of 0–5 cm, 5–10 cm and 10–20 cm. Potential acidity, pH, soil organic carbon (SOC), available phosphorus, exchangeable potassium, calcium and magnesium, cation exchange capacity (CEC), sum of basic cations (SBC) and base saturation (BS) were determined. Principal component analysis (PCA) was used to correlate soil chemical attributes with maize yield. Calcium, magnesium, available P and SBC were related to the maize grains yield in upper soil layer, especially at nitrogen fertilization. This research confirms the hypothesis that there is a linkage between different soil fertilization regimes, soil properties and the maize grains yield.

Characterization of dissolved organic matter (DOM) extracted from soils by hot water percolation (HWP)

2010 ◽  
Vol 59 (1) ◽  
pp. 99-108 ◽  
Author(s):  
M. Takács ◽  
Gy. Füleky
Keyword(s):  
Organic Matter ◽  
Humic Acid ◽  
Natural Organic Matter ◽  
Extraction Methods ◽  
Soil Samples ◽  
Hot Water ◽  
Soil Extracts ◽  
Water Percolation ◽  
Soil Humic Acid

The Hot Water Percolation (HWP) technique for preparing soil extracts has several advantages: it is easily carried out, fast, and several parameters can be measured from the same solution. The object of this study was to examine the possible use of HWP extracts for the characterization of soil organic matter. The HPLC-SEC chromatograms, UV-VIS and fluorescence properties of the HWP extracts were studied and the results were compared with those of the International Humic Substances Society (IHSS) Soil Humic Acid (HA), IHSS Soil Fulvic Acid (FA) and IHSS Suwannee Natural Organic Matter (NOM) standards as well as their HA counterparts isolated by traditional extraction methods from the original soil samples. The DOM of the HWP solution is probably a mixture of organic materials, which have some characteristics similar to the Soil FA fractions and NOM. The HWP extracted organic material can be studied and characterized using simple techniques, like UV-VIS and fluorescence spectroscopy.

Wheat and maize yield variations in the Brod-Posavina area

2005 ◽  
Vol 33 (1) ◽  
pp. 229-233 ◽  
Author(s):  
Marko Josipovic ◽  
Vlado Kovacevic ◽  
D. Petosic ◽  
Jasna Sostaric
Keyword(s):  
Maize Yield
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