Effect of Potassium Humate and Bentonite on some Soil Chemical Properties under Different Rates of Nitrogen Fertiliztion

El-Etr, Wafaa; Hassan, Wagida

doi:10.21608/jssae.2017.38070

Cited by 4 publications

(6 citation statements)

References 7 publications

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“…Total content of P and K were significant increase as a result addition of bentonite and K-humate. This referred to the great function of K-humate improve the efficiency of nutrients [14]. The highest content of K 1.60% at 10 mg.kg -1 K-humate.…”

Section: Plant Growth and Nutrientsmentioning

confidence: 89%

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Biochar, Bentonite and Potassium Humate Effects on Saline Soil Properties and Nitrogen Loss

Abdeen

2020

ARRB

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Aim: In order to study the effect of biochar, bentonite and potassium humate on saline soil characteristics, barley growth and nitrogen loss, a column experiment was conducted. Addition of the above mention materials was hypothesized to improve the characteristics of saline soil and decrease nitrogen loss in the leachate solution. Place and Duration of Study: Farm of Soils and Water Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt during the winter season of 2019. Methodology: Biochar and bentonite were added with rates 0, 5 and 10 g.kg-1; and the rates of potassium humate were 0, 5 and 10 mg.kg-1. Excess irrigations were implemented three times (on 12th, 24th, 36th days) during growing season. Leachate solution was collected after each excess irrigation from each column to determine nitrogen loss. Results: Main results show that total organic carbon and soil porosity were increased by increasing the addition rates of the studied materials, especially at the high rates of biochar and bentonite. Also, the availability of water significantly increased. Addition of biochar and bentonite gave the highest decreasing in leachate solution volume. Nitrogen loss was decreased significantly at the highest rates of the studied materials, where the decrement percentage in leachate solution reached at 36.07%, 35.82 and 23.81 at the highest rates of biochar, bentonite and potassium humate, respectively. That led to increasing the retention of available nitrogen in saline soil. Fresh and dry weights of barley plants were increased significantly by increasing the addition rates of all amended materials. Macronutrients (NPK) content and uptake were increased significantly by increasing the addition rates of the studied materials. Conclusion: Research results proved that changes in soil properties caused a significant increase in barley growth and nutrients uptake. Addition of biochar and bentonite were the best option for improving saline soil properties, barley growth and nutrients uptake and reduce nitrogen loss by improving nitrogen retention and decreasing the leachate volume.

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Section: Plant Growth and Nutrientsmentioning

confidence: 89%

“…Bentonite and potassium humate addition enhanced sandy soil properties which reflected on increased soil fertility and productivity [14]. Bentonite has a high cation capacity which increase soil water content [15] and would be expected to have high nutrient retention.…”

Section: Introductionmentioning

confidence: 99%

Biochar, Bentonite and Potassium Humate Effects on Saline Soil Properties and Nitrogen Loss

Abdeen

2020

ARRB

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“…Additionally, K-humate improves soil physical, chemical properties and nutrient movements and reduces hard effects of salt stress Ali, 2018 andSherif &Hedia, 2015). Humate in sandy soil showed positive effect on available N, P, K nutrient, soil chemical properties and fertility (El-Etr and Hassan, 2017).…”

Section: Introductionmentioning

confidence: 95%

“…Fulvic and humic acids added to the soil improve adsorption and pH (Khaled and Fawy, 2011). Humic and fulvic substances improve the soil's physical properties and soil productivity (Yang et al, 2013;Osman 2015;El-Etr and Hassan, 2017;Abdel-Baky et al 2019). Magnetic water at 15 min was positive effect on decrease of, electric-conductivity (EC), total dissolved salts (TDS) and pH (Babaloo et al, 2015 andShahin et al, 2016).…”

Section: Effect Of Humic Substances On Soil Salinity and Soil Phmentioning

confidence: 99%

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Studying the Effect of Magnetized Fulvate and Humate Solutions on Phosphorus Availability in Sandy Soil Cultivated by Faba Bean (Vicia Faba L.)

Mohamed

2020

Egypt.J. Soil Sci.

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T WO FIELD experiments were carried out in sandy soil at the Ismailia Agricultural Research Station during winter seasons of 2017/2018-2018/2019. The aim is to study the effect of magnetized aqueous solutions (0.5% v/v) of potassium fulvate (KF) and/or potassium humate (KH) sprayed in presence of soil applied rock phosphate (RP) and/or super phosphate (SP) fertilizers (16.09 Kg P ha-1 application rate) on faba been (Vicia faba L.) plant. Spraying of solutions was applied four times 30, 50, 70 and 90 days after sowing. Control treatments (0 additions), magnetized (KFM and/or KHM) and non-magnetized (mixed with tab water, KFT and/or KHT) treatments were distributed in a complete randomized block design. Cultivation was performed as recommended by the Ministry of Agriculture. At maturity stage and after harvest, yield (Mg ha-1) and some yield components, percentage (%) of N, P, and K available in soil and total in plant, pH and EC were estimated. Results showedthe magnetic treatments KFM and KHM resulted in the most significant increase of the available P (mg kg-1) in soil for RP and SP treatments and the available N for RP. The increase in the available K in soil was non-significant. Magnetic solutions of KFM and KHM also exhibited a significant increase in the seed weight and dry weight of pods (g plant-1) but the increase in the yield of seeds and straw (Mg ha-1) was non-significant. Foliar application of magnetic fulvate and humate solutions may enhance the efficiency of phosphorus fertilization under sandy soil conditions.

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The Effect of Ca-Bentonite Aplication on Cadmium Uptake and Shoot Dry Matter of Bread Wheat

ECE>

Aydemir

Özkutlu

2022

Türk Doğa Ve Fen Dergisi

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Cadmium(Cd) is a non-essential heavy metal that is highly toxic even at very low concentrations. Although Cd is a non-essential trace metal, when reached to high levels in agricultural soils, it can be easily absorbed by plants. Cadmium accumulation in wheat (Triticum aestivum L.) and its subsequent transfer to food chain is an important problem worldwide. Bentonite is a material essentially composed by montmorillonite and related clay minerals of the smectite group. The purpose of this study was to investigate the effects of bentonite (0, 3, 6 and 12%) application on Cd uptake of bread wheat growing in high Cd (0, 5 and 10 mg/kg soil) application. Plants were grown under greenhouse conditions acid soil. The experiment was conducted randomized block design with three replicates. The results revealed that shoot dry weight of bread was significantly increased with increasing doses of bentonite applications. While the dry weight of shoot without bentonite application was 480 mg/plant, it increased approximately 2 fold with 12% bentonite application. Cadmium concentration with the bentonite of control application decreased 4 times from 20.74 ppm to 5.07 ppm with application of 12% bentonite. The results show that Cd toxicity in the shoot was alleviated by bentonite treatment.

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Effect of Potassium Humate and Bentonite on some Soil Chemical Properties under Different Rates of Nitrogen Fertiliztion

Cited by 4 publications

References 7 publications

Biochar, Bentonite and Potassium Humate Effects on Saline Soil Properties and Nitrogen Loss

Biochar, Bentonite and Potassium Humate Effects on Saline Soil Properties and Nitrogen Loss

Studying the Effect of Magnetized Fulvate and Humate Solutions on Phosphorus Availability in Sandy Soil Cultivated by Faba Bean (Vicia Faba L.)

The Effect of Ca-Bentonite Aplication on Cadmium Uptake and Shoot Dry Matter of Bread Wheat

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