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Dark brown hardened band of soil, crusted and rusty, running across an orange-brown sandy soil face, with a small pocket knife pushed into the soil above for scale. — Iron pan 120 cm below the soil surface Antonio Jordán

Water channel with a concrete edge in front of a green crop field, where several sprinklers spray arcs of water, with farm vehicles on the flat horizon under a grey sky. — Irrigation system in the Guadalquivir Valley Antonio Jordán

Close-up of a grey-brown soil face with fine horizontal layers and faint rusty mottles, beneath a crumbly, lumpy pale grey layer at the top. — Detail of redox features Antonio Jordán

Field of raised beds covered with black plastic film and weeds, with a group of people at the far end pulling up the film, next to a wire fence and pine trees. — Workers retiring plastic film after harvest in El Cebollar experimental farm Antonio Jordán

Bright sun low over a flat ocean horizon in a golden hazy sky, casting a glittering path of light across the dark rippled water. — Sunset over the Atlantic Ocean in Sines (Portugal) Antonio Jordán

Seen from above, about eight dark grey spiny-tailed iguanas with yellowish patches and banded tails, sprawled over one another on a pale rock and sandy ground. — Don't touch our rock! Antonio Jordán

Calm blue-green reservoir in front of a hill topped by a small tower, with white houses spilling down its slopes and hazy mountain ridges behind. — Reservoir Zahara - El Gastor, near Zahara de la Sierra Antonio Jordán

Rows of green potato plants on pale sandy soil, separated by strings, with white signs reading NPK, NK, control, N, K, PK and P marking the plots. — Effect of Fertilization at Potatoes Nesho Neshev

Market fruit stall piled with pineapples, melons, oranges, apples, mangoes, grapes and hanging bananas, with handwritten price signs and two people shopping in front of a vendor. — Soil is the basis for food production Antonio Jordán

Dystric Endogleyic Regosol Antonio Jordán

Chromic Gleyic Luvisol Antonio Jordán

Sodic Hypersalic Gleyic Solonchak Antonio Jordán

Five tall soil monoliths in wooden frames displayed side by side at an indoor exhibition, ranging from black cracked clay to pale stony sand and dark red-brown soil. — Soil monolyths in the 18th World Congress of Soil Science, Philadelphia, USA, 2006 Antonio Jordán

Large group of about sixty people posing on the steps in front of the glass entrance of a modern building, some seated on the lowest step. — Participants in the II Iberian Congress on Soil Science, Sevilla and Huelva, Spain, 2006 Antonio Jordán

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