Drainage Situation in the Lower Rio Grande Valley, Texas

This report on the lower Rio Grande Valley, which when first settled gave promise of large crops but markedly deteriorated after the first year or two of cultivation because of seepage and the rise of alkali, discusses the soils, crops, rainfall, alkali in the region, the movement of water and alkali in soils, the allowable salt content of irrigation water, the rise of ground water in soils, and methods of reclaiming soils. A plan for the drainage of a single plantation is included.