نتایج جستجو برای: irrigation with 4 levels i1

تعداد نتایج: 9802896  

A split-split-plot design with three replications in two years of 2009 and 2010 was conducted to investigate the effect of different levels of irrigation water (main plot), salinity of irrigation water (sub-plot) and nitrogen fertilizer rate (sub-subplot) on maize growth rate and gas exchange. Irrigation treatments were I1 (1.0 crop evapotranspiration (ETc)+0.25ETc as leaching), I2 (0.75I1)...

ژورنال: علوم آب و خاک 2007
عبدالمجید لیاقت, , محمد معزاردلان, , مهدی همائی, , احمد کریمی, , فایز رئیسی, ,

In Iran, fertilizers are mainly applied directly to soil. In such conditions, the yield and fertilizer use efficiency are usually low. The simultaneous application of fertilizers and irrigation water (fertigation) is an appropriate alternative to increase the efficiency of applied water and fertilizers. The objective of this study was to investigate the effect of various irrigation and fertiliz...

2008
C. G. Abourached I. I. Bashour

This study investigated the interactive effects of different rates of deficit irrigation and timings of N application on wheat and barley yields since there was no report on this important subject. Field experiments in strip-plot designs using sprinkler line sources were conducted for two years at a semi-arid Mediterranean site. The experiments consisted of 4 and 7 irrigation levels with 3 and ...

Nowadays, applying soil amendments is one of the most important ways to cope with water shortages and improve soil physical properties. In this regard, a greenhouse experiment was conducted to study the effect of different levels of irrigation water and wheat straw biochar on physical and chemical properties of a sandy loam soil, after harvesting faba bean. The experiment was performed with 5 b...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1390

building on previous studies on the effectiveness of different types of written corrective feedback, the present study aimed at investigating whether direct focused corrective feedback and direct unfocused corrective feedback produced any differential effects on the accurate use of english articles by efl learners across two different proficiency levels (low and high). in current study, the par...

2004
Yatsuka Nakamura Andrzej Trybulec

The articles [8], [11], [10], [5], [1], [7], [12], [4], [3], [2], [9], and [6] provide the notation and terminology for this paper. In this paper i, j, k, k1, k2, n, m, i1, i2, j1, j2 are natural numbers. Let us consider i1, i2. We say that i1 and i2 are adjacent if and only if: (Def. 1) i2 = i1 + 1 or i1 = i2 + 1. One can prove the following propositions: (1) For all i1, i2 such that i1 and i2...

2002
Joyce C. Gibson Henry N. Ginsberg

Apolipoproteins C-I1 (apoC-11) and C-111 (apoC-111) are distributed among all the major lipoprotein classes, particularly very low density (VLDL) and high density lipoproteins (HDL). We have determined concentrations of apoC-I1 and apoC-111 in VLDL and HDL in subjects with a wide range of VLDL triglyceride and HDL cholesterol levels, and correlated these levels with fractional catabolic rates (...

Journal: :تحقیقات آب و خاک ایران 0
مهدی قیصری استادیار گروه مهندسی آب دانشکدة کشاورزی دانشگاه صنعتی اصفهان، اصفهان ـ ایران محمد مهدی مجیدی دانشیار گروه مهندسی زراعت و اصلاح نباتات دانشکدة کشاورزی دانشگاه صنعتی اصفهان، اصفهان ـ ایران محمد جواد زارعیان دانشجوی دکتری آبیاری و زهکشی دانشکدة کشاورزی دانشگاه صنعتی اصفهان، اصفهان ـ ایران سید مجید میرلطیفی دانشیار گروه آبیاری و زهکشی دانشکدة کشاورزی دانشگاه تربیت مدرس، تهران ـ ایران حمزه دوکوهکی دانشجوی سابق ارشد آبیاری و زهکشی دانشکدة کشاورزی دانشگاه صنعتی اصفهان، اصفهان ـ ایران سمیه امیری دانشجوی سابق کارشناسی مهندسی آب دانشکدة کشاورزی دانشگاه صنعتی اصفهان، اصفهان ـ ایران

this study was conducted to investigate the effects of applying deficit irrigation on aboveground biomass, leaf area and root biomass for maize hybrid 704 single-cross. experimental treatments included 4 different irrigation levels, 5 growth stages with three replicates in a completely randomized factorial statistical design. aboveground biomass, leaf area and root biomass in 4 longitudinal sec...

Journal: :International Journal of Plant and Soil Science 2023

An experiment was conducted at Student’s “Instructional farm of Acharya Narendra Deva University Agriculture and Technology Kumarganj, Ayodhya (U.P.) during rabi season 2019-2020. The laid out in split plot design (SPD) with three replications using the wheat variety HD- 2967. treatments comprised four levels irrigation viz. 0.6 IW/CPE ratio (I1), 0.8 (I2), 1.0 (I3), 1.2 (I4), nitrogen sources ...

Journal: :علوم باغبانی 0
جلال جلیلی خلیل جلیلی هرمز سهرابی

one fundamental strategy for increasing efficiency of plans which aim to develop natural resources is decreasing water loss and using this restricted water optimally. in arid and semi-arid regions such as a large part of iran, increasing period of irrigation which results in decreasing the irrigation costs, without causing water stress to planted sapling is a vital task. in this research we exa...

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