نتایج جستجو برای: 60 and 90 kg ha

تعداد نتایج: 16924515  

Journal: :مجله پژوهش های اکوفیزیولوژی گیاهان زراعی 0

abstract lowland rice (oryza sativa l.) in south asia is under stress, as nitrogen removals by crops are higher than their replenishment through fertilizers. limited information is available on optimizing nitrogen dose in lowland rice to turn out higher yield. the present investigation aimed to optimize nitrogen fertilization and it’s response to the growth and yield of lowland rice. we evaluat...

توکلی حسنکلو, حوریه , توکلی حسنکلو, نصیبه , دانشیان, جهانفر, کلانتر احمدی, سید احمد,

In order to study the effects of planting pattern and plant density on yield of soybean genotypes, an experiment was carried out in Safiabad Agricultural Research Center, Dezful, Iran in 2011. The experimental design was a factorial strip plot based on completely randomized block design with 3 replications. Planting pattern consisted of 3 levels (60 cm with 1 planted row, 75 cm and 90 cm with 2...

K. Liu P. Wiatrak,

Nitrogen (N) application management needs to be refined for low yielding environments under dryland conditions. This 3-yr study examined nitrogen fertilization management effects on corn (Zea mays L.) plant characteristics and grain yield in rain fed environment under conventional tillage system. Nitrogen fertilization management consisted of two timing methods of N application [all N at planti...

2014
F. U. Rasool B. Hassan I. A. Jahangir

A field experiment was conducted at the Research farm, Division of Agronomy, Sher-e-Kashmir University of Agricultural Sciences and Technology, India for two consecutive rainy (kharif) seasons of 2009 and 2010 to find out the impact of nitrogen, sulphur and farmyard manure (FYM) on growth and yield of sunflower (Helianthus annuus L.). Application of 120 kg N ha significantly increased all the y...

Journal: :یافته های تحقیقاتی در گیاهان زراعی و باغی 0
غلامرضا طاهریون مرکز تحقیقات کشاورزی و منابع طبیعی زنجان کاظم سلیمانی تقی محمدی

this study planed to determine appropriate planting date and proportion of alfalfa and barley in mixed cropping. experiment carried out in khair abad station of agricultural and natural resources research center of zanjan for five years (2004-2007), using split plot design which main plot was planting date (aug .15, sep.26 and oct .6) and subplot contain alfalfa to barley ratio, barley, alfalfa...

جعفری, پیمان , جلالی, امیرهوشنگ ,

To investigate the effect of drought stress and plant density on yield and yield components of maize KSc 301 hybrid, a two-year study (2007-2008) was carried out in Varamin Agricultural Research Center by using strip split plot randomized based on complete block design in three replications. Four water stress levels (before flowering, during flowering and grain filling stage and no stress) were...

Journal: :Journal of agriculture and ecology 2022

A field study was conducted in a semi-arid climate to assess the effect of nitrogen and phosphorus on timely sown bed planted wheat under varying irrigation levels. The soil sandy loam, having 0.36% organic carbon pH 8.2. It low available N (132 kg/ha), medium P (11.6 kg/ha) rich K (325 kg/ha). experiment consisted sixteen treatment combinations four levels (Two, three, five irrigations) main p...

Journal: :Journal of environmental quality 2001
O S Mbuya P Nkedi-Kizza K J Boote

A field study was conducted to determine the fate of atrazine (6-chloro-N2-ethyl-N4-isopropyl-1,3,5-triazine-2,4-diamine) within the root zone (0 to 90 cm) of a sandy soil cropped with sorghum [Sorghum bicolor (L.) Moench] in Gainesville, Florida. Atrazine was uniformly applied at a rate of 1.12 kg ai. ha(-1) to a sorghum crop under moderate irrigation, optimum irrigation, and no irrigation (ra...

G.R. Mohsenabadi J. Aminifar M. Galavi M. Ramroudi

ABSTRACT- Declining land productivity associated with decreasing soil organic carbon and nutrients is a significant issue in monoculture production. The field experiment with different rates of fertilizer systems (60 kg ha-1 N + 100 kg ha-1 P, 300 kg ha-1 Bio-organic (organic fertilizer), 3 kg ha-1 Bioumik (biofertilizer), 30 kg ha-1  N + 50 kg ha-1 P + 150 kg ha-1 Bio-organic fertilizer and 30...

2011
Mohd Hafiz Ibrahim Hawa Z.E. Jaafar Asmah Rahmat Zaharah Abdul Rahman

A split plot 3 by 4 experiment was designed to examine the impact of 15-week variable levels of nitrogen fertilization (0, 90, 180 and 270 kg N/ha) on the characteristics of total flavonoids (TF), total phenolics (TP), total non structurable carbohydrate (TNC), net assimilation rate, leaf chlorophyll content, carbon to nitrogen ratio (C/N), phenyl alanine lyase activity (PAL) and protein conten...

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