Effects of clinoptilolite zeolite on phosphorus dynamics and yield of Zea Mays L. cultivated on an acid soil

Abstract

Efficient management of P fertilizers ensures good yield of crops and adequate food supply. In the acid soil of the tropics, soluble P is fixed by Al and Fe. Exploitation of the high CEC and pH of Clinoptilolite zeolite (CZ) could mitigate low soil pH and P fixation in acid soils. This study was undertaken to determine the effects of amending a weathered acid soil with CZ on: (i) soil P availability and other related soil chemical properties, and (ii) nutrient concentration, nutrient uptake, above-ground biomass, agronomic efficiency, and yield of Zea mays L. on a tropical acidic soil. Triple superphosphate (TSP), Egypt Rock phosphate (ERP), and Christmas Island Rock phosphate (CIRP) were used as P sources. The treatments evaluated were: (i) soil alone, (ii) 100% recommended fertilizer rate (NPK), and (iii) 75% fertilizer rate + Clinoptilolite zeolite. Selected soil chemical properties and P availability were determined before and after field trials. Zea mays L. above-ground biomass, nutrient concentration, nutrient uptake, agronomic efficiency, and fresh cob yield were also determined. Results revealed that the effects of treatments with and without CZ treatments on soil pH, P fractions, soil acidity, dry matter production, yield of maize, nutrient uptake, and agronomic efficiency were similar. Hence, suggesting CZ inclusion in the fertilization program of Zea mays L is beneficial in terms of reducing excessive or unbalanced use of chemical fertilizers due to reduction of fertilizers usage by 25%.

Influence of Zeolite and Phosphorus Applications on Water Use, P Uptake and Yield in Rice under Different Irrigation Managements

“…Increasing evidence shows that zeolite mixed with chemical fertilizer applied to soil enhances P uptake in plants [16,65,66], which was confirmed in our study with the increases in soil available P and APU in zeolite-amended soil (Table 3; Table 4) and consistent with the results of Hua et al (2006) [67] and Li et al [68]. In the present study, the positive effect of zeolite on soil P availability might be related to the amelioration of soil pH and decrease of the exchangeable soil Al, which result in less P being fixed by metal oxyhydroxides [21]. Moreover, Pickering et al [16] reported that phosphate rock applied in combination with NH 4 + -saturated zeolite greatly enhanced P uptake in sunflowers, due to an increase in soil available P, which is explained by the following Equation described by Allen et al (1993)…”

“…Many studies have reported the effect of zeolite mixed with phosphate rock on P availability in different soils [16,19,20]. In addition, due to its alkaline and negative charges, zeolite could improve soil P availability by mitigating soil pH, reducing soil exchangeable Al and soil acidity, which lead to less P being fixed by metal oxyhydroxides [21]. However, little is known about the response of P availability to zeolite with phosphate fertilizer applied to a paddy field.…”

PENGARUH DOSIS ZEOLIT DAN PUPUK SP-36 TERHADAP KETERSEDIAAN P PADA LATOSOL DAN SERAPAN P PADI GOGO (Oryza sativa L.)

“…Pemberian zeolit 2,5 ton/ha (Z1) memiliki nilai pH H2O yang lebih tinggi daripada tanpa pemberian zeolit 0 ton/ha (Z0), namun tidak berbeda nyata dengan pemberian zeolit 5 ton/ha (Z2). Menurut Aainaa et al, (2018) Keberadaan logam alkali seperti Ca 2+ dan Na + pada koloid tanah akan berakibat pH tanah meningkat. Aplikasi SP-36 tidak menunjukkan pengaruh nyata pada pH H2O Latosol, namun terdapat peningkatan pH Latosol pada pemberian dosis SP-36 (P1 dan P2) dibandingkan tanpa SP-36 (P0).…”

A time‐ and cost‐saving method to check the point‐to‐point distribution of soil improvers

“…Based on this awareness, several small‐scale experiments were carried out to demonstrate the effectiveness of ZT as soil conditioners able of reducing fertilization and irrigation demands, without compromising productivity or even improving it ( Nus and Brauen , 1991; Eberl et al., 1995; Kanazirska et al., 1997; Aschonitis et al., 2011; Leggo , 2017). In contrast, the application of ZT as soil conditioners in a large‐scale field tests is a rather new practice ( Malferrari et al., 2013; Campisi et al., 2016; Wu et al., 2016; Nur Aainaa et al., 2018; Faccini et al., 2018; Ferretti et al., 2020), as well as the techniques specifically customized for dosing and spreading ZT over the soil. The ZT/soil ratio value has, of course, an obvious scientific relevance when the agronomic results are critically analyzed.…”