نتایج جستجو برای: density plastic irrigation pools

تعداد نتایج: 519360  

Journal: :به زراعی کشاورزی 0
مجید جعفر آقایی کارشناس ارشد، مرکز تحقیقات کشاورزی امیر هوشنگ جلالی عضو هیأت علمی مرکز تحقیقات کشاورزی استان اصفهان

to investigate the effect of water treatment and plant density on yield and yield components of two cotton cultivar, a two-year experiment (2006-2007) was carried out in esfahan agricultural research center. the use of a split plot factorial based on complete block with four replications for study. two irrigation levels 135 (i1) and 180 (i2) mm of cumulative pan evaporation class a, from flower...

ژورنال: علوم آب و خاک 2018

The grape leafhopper, Arboridia kermanshah Dlabola (Hemiptera, Cicadellidae), is an economically important pest of most vineyards in Isfahan. The effects of two irrigation regimes [normal (100 liter/ tree/ week) and minimum (100 liter/ tree/two weeks)] seasonal population changes and the damage of A. Kermanshah as well as  the percentage of leafhopper egg parasitism by Anagrus atomus were studi...

Journal: :desert 2008
m. dastorani m. heshmati m. a. sadeghzadeh

this research was designed to evaluate and compare the applicability of two different types of irrigation including traditionally (surface irrigation) and simple sub-surface drip irrigation (using pricked-pipe covered with plastic cloth). two plots containing 39 pistachio trees with 720 m2 area were selected in rafsanjan, iran. both plots were irrigated using exactly the same quantity and quali...

Abdolsamad Kelidari Hooshang Farajee Leila Gharib Ardakani,

In order to investigate drought stress and plant density the yield, yield components and protein of spotted bean grain (cultivar Talash), an experiment was carried out as split plots in randomized complete blocks with three replications in Yasouj, in 2012. Factors of the test including irrigation in three levels; without stress (control treatment), water stress in vegetative stage (interrupting...

Journal: :Plant physiology 2015
Vincent Chochois John P Vogel Gregory J Rebetzke Michelle Watt

Seedling roots enable plant establishment. Their small phenotypes are measured routinely. Adult root systems are relevant to yield and efficiency, but phenotyping is challenging. Root length exceeds the volume of most pots. Field studies measure partial adult root systems through coring or use seedling roots as adult surrogates. Here, we phenotyped 79 diverse lines of the small grass model Brac...

2018
Yee Onn Kok Si Jack Chong Adi Basuki Bien Keem Tan

Copyright 2018 The Korean Society of Plastic and Reconstructive Surgeons This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Copious irrigation...

Journal: :Phytopathology 2002
H A Ajwa T Trout J Mueller S Wilhelm S D Nelson R Soppe D Shatley

ABSTRACT Strawberry fields in California (9,500 ha annually) are pre-plant fumigated with methyl bromide and chloropicrin to prevent serious soil pest and disease problems. Although soil fumigation with methyl bromide has ensured stability of strawberry production, its use is being discontinued because of its effect on stratospheric ozone. The likely short-term alternatives such as 1,3-dichloro...

Journal: :journal of arthropod-borne diseases 0
s azari-hamidian school of public health, guilan university of medical sciences, rasht, iran.

an investigation was carried out during april to december 2000 to study mosquito fauna and ecology in guilan prov ince of northern iran. the mosquito larvae were collected by dipping method and larval habitat characteristics recorded ac cording to hydro-ecological features. in total, 3937 larvae of the genus culex from 92 larval breeding sites were collected. six spe cies of the genus culex; cx...

2017
Luis E. Ahumada-Orellana Samuel Ortega-Farías Peter S. Searles Jorge B. Retamales

An increase in the land area dedicated to super-high density olive orchards has occurred in Chile in recent years. Such modern orchards have high irrigation requirements, and optimizing water use is a priority. Moreover, this region presents low water availability, which makes necessary to establish irrigation strategies to improve water productivity. An experiment was conducted during four con...

2005
DANIEL E. BUNKER WALTER P. CARSON

1 We hypothesized that severe drought affects the structure of tropical forests by favouring seedlings of some species or groups at the expense of others. To test this hypothesis, we irrigated naturally occurring woody seedlings during an El Niño-related drought in seasonal moist tropical forest on Barro Colorado Island, Panama. We predicted that irrigated plots would retain greater species ric...

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