New Approaches to Agricultural Land Drainage: A Review

Abstract

A review on agricultural effects of restricted soil drainage conditions is presented, related to soil physical, chemical and biological properties, soil water availability to crops and its effects on crop development and yield, soil salinization hazards, and the differences on drainage design main objectives in soils under tropical and semi-arid water regime conditions. The extent and relative importance of restricted drainage conditions in Agriculture, due to poor irrigation management is discussed, and comprehensive studies for efficient drainage design and operation required are outlined, as related to data gathering, revision and analysis about geology, soil science, topography, wells, underground water dynamics under field conditions, the amount, intensity and frequency of precipitations, superficial flow over the area to be drained, climatic characteristics, irrigation management and the phenology of crop productive development stages. These studies enable determining areas affected by drainage restrictions, as well as defining the optimal drainage net design and performance, in order to sustain soil conditions suitable to crops development.

Non‐conventional sources of agricultural water management: Insights from young professionals in the irrigation and drainage sector*

“…By this definition, drainage water, generated by irrigated agriculture and surface runoff which passes through the soil profile to enter the drainage system is classified as a marginal water source. The process of field drainage provides a set of technical strategies combined with hydraulic structures to maintain a suitable proportion of water and air for favourable crop growth as well as ensure soil sustainability that supports productive crop conditions (Gurovich & Oyarce, 2015). Deficient drainage conditions in the soil root zone induce several physiological states of plants including reduction of shoot growth and development as well as lowering the ability of roots to water and nutrient absorption (Palta et al, 2010).…”

Optimization of Water Allocation at Irrigation Area of Molek-Kepanjen Regency of Indonesia Using Dynamic Programming

“…Although the farmers aim to use the maximum water for irrigating their crop, even in the case of no limitation for water resources, it does not seem logic. However, under such conditions, it is required to be efficient in water use and to be carried out the optimization in the field [13]- [14]. The irrigation area of…”