Coupling effects of phosphate fertilizer type and drip fertigation strategy on soil nutrient distribution, maize yield and nutrient uptake

Guo, Yanhong; Wang, Zhen; Li, Jiusheng

doi:10.1016/j.agwat.2023.108602

Cited by 3 publications

(1 citation statement)

References 35 publications

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“…The relevant research results show that these topsoil substitutes can effectively improve the soil, improve the crop biomass [9][10][11], reduce the land occupation of solid waste in the mining area and environmental pollution, and achieve the goal of "treating waste with waste". In China, most solid wastes are used as soil improvement materials to improve the physical and chemical properties of the soil [12,13], so as to increase soil nutrients, improve soil fertility, and achieve resource recycling [14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Improvement and Remediation of Degraded Soil Based on Solid Waste

Zhang,

Li,

Zhang

et al. 2023

Advances in Transdisciplinary Engineering

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Aiming at the problem that coal gasification coarse slag is seldom used in soil improvement at present, this study takes the waste dump of Hongshaquan No.1 open-pit mine in Zhundong, Xinjiang, as the research object, uses the local coal gasification coarse slag to prepare coal-based soil improver to improve the soil in the study area, and compares it with the improvement effect based on fly ash and domestic sludge to explore the soil improvement effect of different solid wastes. The improvement experiment results show that, in terms of soil particle size, the addition of fly ash and domestic sludge can increase the soil clay content and reduce the sand content, but the effect of coal gasification coarse slag on soil particle size composition is not obvious. In terms of soil nutrients, fly ash will reduce the content of soil organic matter, available potassium and alkali hydrolyzable nitrogen, but increase the content of available phosphorus. Coal gasification coarse residue will increase the content of soil organic matter and available phosphorus, but it has little effect on the content of available potassium and alkali hydrolyzable nitrogen. Domestic sludge will improve the contents of soil organic matter, available potassium, alkali hydrolyzable nitrogen and available phosphorus. In terms of soil pH, fly ash and coal gasification coarse slag will increase soil alkalinity, and domestic sludge will reduce soil alkalinity. The results of the pot experiment in the field showed that the coal gasification coarse slag had the best improvement effect, followed by domestic sludge and finally fly ash. By clarifying the effect of improved materials, this study can better use coal-based solid waste resources in the field of ecological restoration of degraded soil, so as to provide a scientific basis for the ecological reconstruction and pollution restoration of local arid ecologically fragile saline alkali land.

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Section: Introductionmentioning

confidence: 99%

Improvement and Remediation of Degraded Soil Based on Solid Waste

Zhang,

Li,

Zhang

et al. 2023

Advances in Transdisciplinary Engineering

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The impact of drip irrigation and phosphorus fertilizer on enhancing dimorphic seed production of Lespedeza potaninii in Northwest China

Chen,

Liu,

Guo

et al. 2024

Agricultural Water Management

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Effect of sesame cake fertilizer with γ-PGA on soil nutrient, water and nitrogen use efficiency

Fu,

Li,

Wang

et al. 2024

Sci Rep

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γ-polyglutamic acid (γ-PGA), as an environmentally sustainable material, is extensive applied in agriculture for enhancing water and fertilizer utilization efficiency, augmenting crop yield, and ameliorating soil conditions. However, the effect of γ-PGA in conjunction with sesame cake fertilizer on the soil environment remains uncertain.The aim of this study is to investigate the effect of γ-PGA on soil nutrients, water use efficiency (WUE) and nitrogen use efficiency (NUE), and maize yield across various levels of sesame cake fertilizer. Additionally, the study seeks to identify the optimal ratio to establish a theoretical and practical foundation for sustainable agricultural development and the promotion of ecological agriculture. Through field experiments, nine treatments were established, comprising three levels of sesame cake fertilizer application rates (B1 = 900 kg/hm 2 for low fertility, B2 = 1100 kg/hm 2 for medium fertility, and B3 = 1300 kg/hm 2 for high fertility) and three levels of γ-PGA application rates (R1 = 200 kg/hm 2 , R2 = 400 kg/hm 2 , and R3 = 600 kg/hm 2 ). The results can be outlined as follows: (1) When γ-PGA application rate increased, total nitrogen (TN) exhibited a synergistic effect under B1 treatment, but an antagonistic effect under B2 and B3 treatments. At the 6-leaf stage (V6), 12-leaf stage (V12), and tasseling stage (VT), available phosphorus (AP) exhibited antagonistic effects. However, at the filling stage (R2) and maturity stage (R6), AP in B1 and B2 treatments at various depths underwent partial transformation into a synergistic effect. The levels of available potassium exhibited a notable antagonistic effect, leading to a decrease in harvest index (HI). B2 treatment demonstrated superior results compared to the B1 and B3 treatments, with the highest levels observed under B2R1 treatment; (2) TN content in the 0–40 cm soil layer increased during the filling period, and it was uniformly distributed in the 40–60 cm soil layer. When the soil AP was located in the 0–60 cm soil layer, there was an increase in AP content during the mature period. Following the tasseling period, different treatments exhibited varying patterns of increase in response to the presence of potassium within the 0–60 cm soil layer. Consequently, in cases where the sesame cake fertilizer content is low, the interaction between γ-PGA can compensate for the deficiency of fertilizer, thereby enhancing water and nitrogen utilization efficiency. The optimal fertilization strategy for enhancing soil nutrient distribution, WUE and NUE, and yield is proposed to be the application of 1100 kg/hm 2 sesame cake fertilizer and 200 kg/hm 2 γ-PGA.

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Coupling effects of phosphate fertilizer type and drip fertigation strategy on soil nutrient distribution, maize yield and nutrient uptake

Cited by 3 publications

References 35 publications

Improvement and Remediation of Degraded Soil Based on Solid Waste

Improvement and Remediation of Degraded Soil Based on Solid Waste

The impact of drip irrigation and phosphorus fertilizer on enhancing dimorphic seed production of Lespedeza potaninii in Northwest China

Effect of sesame cake fertilizer with γ-PGA on soil nutrient, water and nitrogen use efficiency

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