在热带土壤上种植玉米时,铁矾土和有机矿物肥料与传统磷源的性能比较

IF 3.4 3区 农林科学 Q2 ENVIRONMENTAL SCIENCES Journal of Soil Science and Plant Nutrition Pub Date : 2024-07-09 DOI:10.1007/s42729-024-01906-7
Rodrigo Nogueira de Sousa, Luís Reynaldo Ferracciú Alleoni
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引用次数: 0

摘要

在高度风化的土壤中,由于磷(P)的可用性较低,自然肥力往往会受到影响。此外,由于磷源有限,探索替代磷源以提高农业生产率和可持续性的紧迫性与日俱增。本研究的目标是比较硬石膏(Est)、有机矿物质(OM)、热磷酸盐(ThermoP)与三过磷酸钙(TSP)在提高沙质壤土和粘性热带土壤中玉米产量方面的农艺效果。调查替代磷肥在两个连续种植周期内对玉米磷利用效率的影响。确定这些替代磷源替代传统 TSP 的可行性,以促进农业可持续养分管理实践。在温室中,用四种磷源对沙质壤土和粘性土壤施肥:OM、Est、ThermoP 和 TSP。连续种植了两茬玉米,每种处理的含磷量均为 100 毫克/千克。对土壤和植物进行了化学分析,然后计算了以下肥料效率指数:农艺效率指数(AEI)、农艺效率(AE)、作物恢复效率(CE)、磷利用效率(PUE)、磷恢复效率(PUpE)和生理效率(PE)。在沙质土壤中,Est 和 OM 的农艺效率高于 TSP。在沙质壤土中,替代源的效率几乎是粘性土壤的 2 倍。Est 的优越性能归因于其缓慢的养分释放和理化特性,这有可能改善土壤质量。关于 PE,OM 和 TSP 在砂质壤土的两种耕作中均为最高值。在第一个作物周期,这两种处理的平均 PE 值为 215 克/升,而在第二个作物周期,平均 PE 值为 181 克/升。Est 肥料的 CE 值、PUpE 值和 PUE 值最高。多变量分析进一步证实了这些观察结果。在玉米种植中,Est 和 OM 可有效替代传统的 TSP,从而提高植物的生长性能和养分利用率。因此,这些替代肥料为可持续养分管理战略提供了潜力。
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Performance of Struvite and Organomineral Fertilizers Compared to Traditional Source of Phosphorus in Maize Cultivation on Tropical Soils

In highly weathered soils, natural fertility is often compromised due to low phosphorus (P) availability. Additionally, there’s an increasing urgency to explore alternative P sources to enhance agricultural productivity and sustainability because P sources are finite. The objectives of this study were to compare the agronomic effectiveness of struvite (Est), organomineral (OM), and thermophosphate (ThermoP) with triple superphosphate (TSP) in increasing maize yields in sandy loam and clayey tropical soils. Investigate the effects of alternative phosphorus fertilizers on the phosphorus use efficiency of maize over two consecutive cropping cycles. Determine the feasibility of these alternative phosphorus sources as replacements for conventional TSP to promote sustainable nutrient management practices in agriculture. In a greenhouse, sandy loam and clayey soils were fertilized with four P sources: OM, Est, ThermoP, and TSP. Two successive maize crops were grown, with each treatment receiving a P rate of 100 mg kg− 1. Soil and plant chemical analyses were carried out and then the following fertilizer efficiency indices were calculated: agronomic efficiency index (AEI), agronomic efficiency (AE), crop recovery efficiency (CE), phosphorus utilization efficiency (PUE), P recovery efficiency (PUpE), and physiological efficiency (PE). Est and OM had higher agronomic efficiencies than TSP in sandy soils. The alternative sources exhibited almost 2-fold more efficiency in the sandy loam compared to the clayey soil. The superior performance of Est was attributed to its slow nutrient release and physicochemical properties that potentially improve soil quality. Regarding PE, OM and TSP led the highest values in both cultivations in sandy loam soil. In the 1st crop cycle, the average PE of these two treatments was ∼ 215 g g− 1 while in the 2nd the average was ∼ 181 g g− 1. The Est fertilizer resulted in the highest values of CE, PUpE, and PUE. Multivariate analysis further supported these observations. Est and OM, can effectively replace conventional TSP in maize cultivation, resulting in better plant performance and nutrient utilization. Consequently, these alternative fertilizers offer the potential for sustainable nutrient management strategies.

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来源期刊
Journal of Soil Science and Plant Nutrition
Journal of Soil Science and Plant Nutrition Agricultural and Biological Sciences-Soil Science
CiteScore
5.90
自引率
10.30%
发文量
331
审稿时长
9 months
期刊介绍: The Journal of Soil Science and Plant Nutrition is an international, peer reviewed journal devoted to publishing original research findings in the areas of soil science, plant nutrition, agriculture and environmental science. Soil sciences submissions may cover physics, chemistry, biology, microbiology, mineralogy, ecology, pedology, soil classification and amelioration. Plant nutrition and agriculture submissions may include plant production, physiology and metabolism of plants, plant ecology, diversity and sustainability of agricultural systems, organic and inorganic fertilization in relation to their impact on yields, quality of plants and ecological systems, and agroecosystems studies. Submissions covering soil degradation, environmental pollution, nature conservation, and environmental protection are also welcome. The journal considers for publication original research articles, technical notes, short communication, and reviews (both voluntary and by invitation), and letters to the editor.
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