Aggregate stability and soil surface sealing in irrigated soils under no‐tillage versus conventional tillage

نویسندگان

چکیده

The effect of no-tillage (NT) vs. conventional tillage (CT) has been evaluated in rainfed conditions but seldom studied under irrigation, where soil sealing favour degradation. To contribute to this knwledge, research analyses aggregate stability disaggregation forces produced irrigation (slaking and mechanical breakdown) the susceptibility soils cropped with irrigated maize. Soils were sampled from 0-2 0-5 cm before maize planting. Soil against both processes was expressed by mean weight diameter (MWD). organic carbon (SOC) aggregates different size fractions remained after processes. suscetibility characterized saturated hydraulic conductivity. results confirmed high disruption slaking breakdown MWD those up 50% smaller seal about three times higher CT than NT. top layer showed an 30% layer, which could be due surface caused drop impact. Greater MWDs related SOC values aggregates, 20% NT CT. Thus, represents effective management soils, reducing helping maintain greater impact wetting This article is protected copyright. All rights reserved.

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ژورنال

عنوان ژورنال: Land Degradation & Development

سال: 2022

ISSN: ['1085-3278', '1099-145X']

DOI: https://doi.org/10.1002/ldr.4316