نتایج جستجو برای: ir1 irrigation at sowing time

تعداد نتایج: 4819224  

This study was conducted to determine whether selecting an optimum sowing date couldimprove yield. The experiment consisted of sowing a film-covered, drip-irrigated cotton field onfour sowing dates from April to May in 2011-2012 at the Agrometeorological ExperimentalStation of Wulanwusu, which was in an arid region of north-western China. Late sowing datesproduced less yield and water-use effic...

Journal: :Zeitschrift fur Naturforschung. Teil B, Chemie, Biochemie, Biophysik, Biologie und verwandte Gebiete 1970
H Oelze-Karow H Mohr

The temporal pattern of control by phytochrome of the enzyme lipoxygenase (EC 1.13.1.13) in the m ustard seedling (Sinapis alba L.) is described. The biosynthetic system which produces lipoxygenase does not respond to phytochrome (Pfr) up to 33.25 h after sowing (25 °C ). By this time the control by Pfr comes suddenly and fully into play. At 48 h after sowing the system escapes from the control...

M.P. Nepomuceno M.S. Yamauti P.L.C.A. Alves P.R.F. Giancotti,

> Sowing crops following cover crops on forage may cause injuries andproductivity reduction, due reasons as allelopathy or glyphosate residues. Theobjective of this study was to evaluate the influence of differing periods betweencover crop (Urochloa ruziziensis) desiccation with glyphosate and sunflower(Aguará 4) sowing in a no-tillage system on crop development and productivity.Two assays were...

Journal: :journal of crop nutrition science 0
syed azam shah nuclear institute for food and agriculture (nifa), tarnab, peshawar, pakistan. wisal mohammad nuclear institute for food and agriculture (nifa), tarnab, peshawar, pakistan. syed mahmood shah nuclear institute for food and agriculture (nifa), tarnab, peshawar, pakistan. muhammad shoaib shafi khyber pakhtunkhwa, agriculture university, peshawar, pakistan.

effects of organic manure (poultry manure) applied alone and integrated with inorganic fertilizer (urea) on yield and yield component, n-uptake and soil fertility in wheat-maize cropping system was evaluated in a field experiment at nuclear institute for food and agriculture, peshawar, pakistan. poultry manure was applied alone and were integrated in different proportions with mineral nitrogeno...

Journal: :Physical review accelerators and beams 2021

The Compact Linear Collider (CLIC) could provide ${e}^{+}{e}^{\ensuremath{-}}$ collisions in two detectors simultaneously possibly at a bunch train frequency the linac twice baseline design value. In this paper, novel dual beam delivery system (BDS) is presented order to serve interaction regions (IR1 and IR2) including optics designs evaluation of luminosity performance with synchrotron radiat...

Journal: :Remote Sensing 2017
Tao Liu Rui Li Xiuliang Jin Jinfeng Ding Xinkai Zhu Chengming Sun Wenshan Guo

The uniformity of wheat seed emergence is an important characteristic used to evaluate cultivars, cultivation mode and field management. Currently, researchers typically investigated the uniformity of seed emergence by manual measurement, a time-consuming and laborious process. This study employed field RGB images from unmanned aerial vehicles (UAVs) to obtain information related to the uniform...

2017
Shakeel Ahmad Qaiser Abbas Ghulam Abbas Zartash Fatima Atique-ur-Rehman Sahrish Naz Haseeb Younis Rana Jahanzeb Khan Wajid Nasim Muhammad Habib ur Rehman Ashfaq Ahmad Ghulam Rasul Muhammad Azam Khan Mirza Hasanuzzaman

Understanding the impact of the warming trend on phenological stages and phases of cotton (Gossypium hirsutum L.) in central and lower Punjab, Pakistan, may assist in optimizing crop management practices to enhance production. This study determined the influence of the thermal trend on cotton phenology from 1980-2015 in 15 selected locations. The results demonstrated that observed phenological ...

Akram Pasandideh Tashakori Mohammad Hossein Ghorbani

This study was conducted at the Gorgan University of Agricultural Sciences and Natural Resources farm, Iran, Golestan province with about 600 mm annual rainfall in order to evaluate the effect of different sowing dates on Azivash (Corchorusolitorius) seed quality, using a randomized complete block design with three replications on 2013. Treatments were four sowing dates such as May 5, ...

Journal: :علوم گیاهان زراعی ایران 0
امید یونسی فرزاد شریف زاده فرهاد فتاحی نیسیانی

to study the root allelopathic effects of cool season crops on germination and early growth of three crops (sorghum, corn, and soybean), an experiment was conducted in seed research laboratory and greenhouse of college of agriculture, university of tehran. the experiment consisted of four cool season crops (wheat, barley, rye and pea) and control as the main plots, three spring-crops (corn, soy...

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