نتایج جستجو برای: irrigation regimes

تعداد نتایج: 82777  

2016
Amy Kochsiek Amy Erin Kochsiek

The litter carbon (C) pool of a single litter cohort in an agroecosystem is the difference between net primary productivity and decomposition and comprises 1113% of the total C pool (litter and soil 0-15 cm depth) post-harvest. This litter-C pool is highly dynamic and up to 50% can be decomposed in the first 12 months of decomposition. Thus, understanding litter-C dynamics is key in understandi...

2017
Sobha Kuriakose Sheela Sreedharan

Aim: To evaluate the effectiveness of four different irrigation regimes on removal of smear layer and smear plugs at the tubular apertures in the middle and apical thirds of the root canals by using Scanning Electron Microscopy(SEM). Settings and Design: In vitro material science study. Materials and methods: Twenty human mandibular first premolars were used for this study. The teeth were divid...

2013
Yanqi Sun Hao Feng Fulai Liu

This study investigated the comparative effects of reduced irrigation regimes--partial root-zone drying (PRD) and conventional deficit irrigation (DI)--on the incidence of blossom-end rot (BER) in tomato (Solanum lycopersicum L.) under three Ca-fertilization rates: 0, 100, and 200mg Ca kg(-1) soil (denoted Ca0, Ca1, and Ca2, respectively). The plants were grown in split-root pots in a climate-c...

2012
E. Khaleghi K. Arzani N. Moallemi

This study was conducted to determine effect of water stress on chlorophyll content and chlorophyll fluorescence parameter in young `Dezful’ olive trees. Three irrigation regimes (40% ETcrop, 65% ETcrop and 100% ETcrop) were used. After irrigation treatments were applied, some of biochemical parameters including chlorophyll a, b, total chlorophyll, chlorophyll fluorescence and also chlorophyll ...

Journal: :Environmental pollution 2010
Pär Aronsson Torleif Dahlin Ioannis Dimitriou

Landfill leachates usually need to be treated before discharged, and using soil-plant systems for this has gained substantial interest in Sweden and in the UK. A three-year field study was conducted in central Sweden to quantify plant response, treatment efficiency and impact on groundwater quality of landfill leachate irrigation of short-rotation willow coppice (Salix). Two willow varieties we...

2013
Mark Altaweel

A model of irrigation agriculture is applied to southern Mesopotamian for the areas around Nippur and Uruk. Field systems around late third millennium BC (Ur III period) cities are modeled in order to understand the effects of salinization and what strategies might limit progressive salinization that hinders agricultural yields. Scholars have long suspected that progressive salinization may con...

2016
Fushing Hsieh Chih-Hsin Hsueh Constantin Heitkamp Mark Matthews

Multiple datasets of two consecutive vintages of replicated grape and wines from six different deficit irrigation regimes are characterized and compared. The process consists of four temporal-ordered signature phases: harvest field data, juice composition, wine composition before bottling and bottled wine. A new computing paradigm and an integrative inferential platform are developed for discov...

2009
A. K. Alva H. P. Collins T. Hodges R. A. Boydston

The soil and climate conditions prevalent in the Pacific Northwest region are favorable for production of high potato (Solanum tuberosum L.) yields. Much of this production occurs on coarse, low organic matter, sandy soils which can be subject to wind and water erosion, and excessive leaching of water and soluble agrichemicals below the root zone, particularly when irrigation is not managed ade...

In order to study the effect of natural zeolite superabsorbent on yield and yield components of linseed under different moisture regimes, a split plot experiment was conducted in a randomized complete block design with 3 replications at Research Farm of Shahrekord University, Shahrekord, Iran in 2017. The main factor in four moisture regimes included irrigation after 50 (control), 80, 130 and 1...

2014
Jie Wu Wei Guo Jinfei Feng Lanhai Li Haishui Yang Xiaohua Wang Xinmin Bian

Drip irrigation is broadly extended in order to save water in the arid cotton production region of China. Biochar is thought to be a useful soil amendment to reduce greenhouse gas (GHG) emissions. Here, a field study was conducted to compare the emissions of nitrous oxide (N2O) and methane (CH4) under different irrigation methods (drip irrigation (D) and furrow irrigation (F)) and fertilization...

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