Amaranthus cruentus, an annual vegetable crop, is known to be highly productive under rain-fed conditions and during the dry season when supplied with water. However, for good water management, there is need to accurately quantify the water consumed by the crop. This paper investigates the water use and biomass yield of differentially irrigated Amaranthus cruentus at different developmental sta...

The domestic and foreign research in the field of rice cultivation carried out over past 10-15 years has identified four main promising technologies that can reduce cost produced: 1 - intermittent flooding; 2 periodic moistening without creating a layer water; 3 sprinkling, including surface irrigation; 4 drip irrigation. Drip irrigation is most priority area research, since it significantly ra...

in arid, semiarid, and mediterranean climates, particularly in west asia and north africa, farmers face limited water resources and must develop irrigation management methods to increase crop production while reducing water use. this study examined methods to reduce irrigation water loss and increase maize water productivity at safiabad agricultural research center in dezful, iran in 2007 and 2...

this study evaluates the effect of irrigation method on the water use efficiency and yield of onions at the zahak agricultural research station in sistan province. the testing was conducted using a split plot arrangement and a randomized complete block design with three replications during the 2005-2006 crop seasons. irrigation methods were basin and drip tape irrigation and the irrigation leve...

Abstract Use of active optical sensors (AOS) in nitrogen (N) management row crops continues to grow. Since the first studies mid‐1990s, several commercial AOS are now available. Typically, canopy reflectance red and near infrared (NIR) bands used calculate normalized difference vegetation index (NDVI). More recently, commercially available include a third, red‐edge band that allows calculation ...

ABSTRACT DMulching contributes to the maintenance of soil moisture at reasonable levels for crop growth. It influences water demand and irrigation time. The aim this study was estimate evapotranspiration root uptake by ‘BRS Princesa’ banana cultivar through a simple approach using some components balance within zone in bare mulched irrigated drip micro sprinkler systems. experimental design com...

Nitrogen compounds added to the soil may convert nitrate and cause contamination. The distribution uniformity of in surface vs. subsurface drip irrigation systems were compared a physical model consisting transparent glass box (1.20 x 0.5 1 m) sandy loam soil, considering emitter installation depths 0 30 cm, discharge rates Q1 = 2, Q2 4, Q3 8 L/h, fertilizer levels S1 125, S2 250, S3 375 mg/L. ...