This manuscript describes the natural soil amendments used in agriculture, which are
divided into three groups: organic, organic-mineral, and mineral amendments. It also …

Globally, about 30% of the ice-free land, comprising large proportion of agricultural land, is
affected by soil acidity which is potentially limiting agricultural productivity and causing …

Unsustainable agricultural management practices such as non-conservationist tillage and
overuse of fertilizers result in soil acidity and, in turn, soil degradation due to reduced carbon …

São Paulo is the most populous and industrialized state of Brazil, which strongly affect
amounts and composition of the generated sewage sludges. Their use on agriculture …

Agricultural production is challenging in environments with climatic instability, high
temperatures, and water deficits, particularly in sandy soils. The use of no-tillage, crop …

Human urine contains significant amounts of N (nitrogen) and P (phosphorus); therefore it
has been successfully used as fertilizer in different crops. But the use of urine as fertilizer …

High nitrogen (N) input often induces soil carbon (C) limitation, eutrophication of
macronutrients, deficiency of base cations, and accumulation of toxic micronutrients. These …

Crop yield gains and improvements in surface and subsurface soil chemical properties are
evident when agricultural lime and gypsum are used in high-acidity soils. However, there is …

Abstract Background and aims In China and several other rice growing countries, lime
application is a common practice to alleviate soil acidification in rice paddies. Liming may …

The changes in soil chemical properties caused by surface lime application depend on the
application dose, reaction time, and are limited to the top few centimeters of the soil profile …