نتایج جستجو برای: supplemental irrigation based on soil moisture

تعداد نتایج: 9236130  

ژورنال: علوم آب و خاک 2017

This research investigated the effects of super absorbentpolymers on root characteristics of Avena fatua under two soil textures and three irrigation regimes. The study was arranged according to a factorial experiment based on a completely randomized design with three replications. Hydrogel compositions included three types of super absorbents (Aquasorb, Boloorab A and Stockosorb) with two leve...

2009
JAMAL EZZAHAR ABDELGHANI CHEHBOUNI SALAH ER-RAKI LAHOUCINE HANICH

Please address all the numbered queries on this page which are clearly identified on the proof for your convenience. Thank you for your cooperation _A_371173 1 Is this Equation 9? 2 Allen et al. not in refs list, please give details. 3 Please cross-reference the text without the use of section numbers! 4 Please update reference if possible. Abstract The objective of the present study was to inv...

F. Razzaghi, T. Ghannadi

Comprehensive agricultural models are crucial for assisting several decision makingprocesses due to their capability for use under different conditions. SALTMED is a holisticgeneric model, which simulates yield, dry matter and soil water content under differentirrigation managements and systems. The aim of this study was to calibrate the SALTMEDmodel to simulate wheat yield, dry matter and soil...

2015
R. Khadra N. Lamaddalena

The study reports the development of a model for the generation of daily volumes and hourly discharge hydrographs, withdrawn from on-demand pressurised irrigation systems. The model is based on the simulation of the water budget at the level of each single hydrant. Under the hypothesis that the initial soil moisture is at field capacity, once the soil water reserve falls down a pre-defined limi...

Journal: :Journal of Agricultural Science 2017

Journal: :Journal of economic entomology 2002
J E Slosser M N Parajulee D L Hendrix T J Henneberry D R Rummel

The study was conducted in the northern Texas Rolling Plains in 1999 to define the relationship between number of cotton aphids, Aphis gossypii Glover, and resulting contamination of cotton lint by honeydew. Whole-plot treatments were three furrow irrigation management treatments: cotton grown without supplemental irrigation (dryland), irrigated cotton with last irrigation in mid August, and ir...

Journal: :Journal of experimental botany 2004
Hamlyn G Jones

This paper reviews the various methods available for irrigation scheduling, contrasting traditional water-balance and soil moisture-based approaches with those based on sensing of the plant response to water deficits. The main plant-based methods for irrigation scheduling, including those based on direct or indirect measurement of plant water status and those based on plant physiological respon...

2005
Nathan E. Derby Dean D. Steele Jeff Terpstra Raymond E. Knighton Francis X. M. Casey

but no difference in yields with increased N when the season was cool. Numerous factors that affect corn yield in the Northern Great Soil moisture status is also important in maintaining Plains are not considered in current N fertilizer recommendations. A maximum corn yields, and maintaining optimal soil moislinear model to describe the interactions of N fertility, weather, soil, ture is facili...

2017
Grant H. West

Irrigated row-crop agriculture is contributing to declining groundwater in areas such as the Mississippi Delta region of eastern Arkansas. There is a need to move toward sustainable levels of groundwater withdrawal. Recent improvements in remote monitoring technologies such as wireless soil moisture sensors and unmanned aerial vehicles offer the potential for farmers to effectively practice sit...

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