Soil properties and crop yields in a dryland Vertisol sown with cotton-based crop rotations

Enhancing soil physical quality and cotton yields through diversification of agricultural practices in central Brazil

“…The data presented highlight the importance of diversified FSs—especially in soil under NT—and the demerits of monocultures, which lead to soil physical degradation. Hulugalle, Weaver, Finlay, Hare, and Entwistle () observed that cotton monoculture degrades soil structure through traffic‐caused compaction, depletes soil fertility, and increases disease incidence. Many studies cited the synergistic effects among crop rotation and NT, providing and maintaining higher SPQ, such as increase in soil organic carbon concentration in response to accumulation of crop residues on soil surface (Salton et al, ; Tivet et al, ; Wright et al, ), and also affecting COT (Hulugalle et al, ).…”

Soil carbon change and its responses to agricultural practices in Australian agro-ecosystems: A review and synthesis

“…The variations in the Australian results on the impact of increasing rotation complexity arise from the mix of different practices involved (Blair and Crocker, 2000;Noble et al, 2003;Armstrong et al, 2003;Hulugalle et al, 2007;Bünemann et al, 2008;Hulugalle and Scott, 2008). Here we group rotation complexity into three categories: 1) increased crop diversity (ID) referring to a change from continuous monoculture to continuous rotation, 2) increased cropping frequency (IF), i.e., a change from one crop per year to two or more crops per year (e.g., from continuous wheat to wheat-cotton double cropping), and 3) increased perenniality (IP), i.e., a change from annual crops to a rotation with perennial crops.…”

Soil quality as affected by tillage-residue management in a wheat-maize irrigated bed planting system

“…The dispersion index (DI) of small aggregates was determined with a method adapted from McKenzie and Austin (1989) and Hulugalle et al (2007) on 25 g Scholenberger and Simon (1945) Total N Kjeldahl a Bremner (1960) Bremner and Mulvaney (1982) Total organic carbon Wet digestion a Walkley (1947) Available phosphorus Olsen extraction a Olsen et al (1954) Fe, Mn, Zn and Cu DTPA-TEA extraction, AAS detection a Viets and Lindsay (1973) pH Soil paste a Salinity Laboratory Staff (1954) Electrical conductivity Soil paste a Salinity Laboratory Staff (1954) AAS = atomic absorption spectroscopy DTPA-TEA = diethylenetriaminepentaacetic acid-triethanolamine a Practical laboratory protocol as according to Handbook on reference methods for soil ananlysis. The Council on Soil Testing and Plant Analysis Athens, Georgia, 1992 of air dried soil.The soil was soaked in distilled water for 16 h and stirred for 1 min in sedimentation cylinders with a hand plunger, after which the fraction of soil particles with effective spherical diameter <50 μm released due to aggregate breakdown in water was measured with the hydrometer method.…”