نتایج جستجو برای: nitrogen and phosphorus use efficiency

تعداد نتایج: 17046844  

M. F. Baqual, P. K. Das

The co-inoculation of mulberry with phosphate solubilizing micro-organisms, nitrogen fixing bacteria and arbuscular mycorrhiza has influenced its macronutrient uptake through leaf. The data revealed that maximum nitrogen (484.12 kg /ha) , phosphorus (59.83 kg /ha) and potassium (244.61 kg/ha) uptake through leaf has taken place due to co-inoculation treatments as compared to the un inoculated t...

Journal: :caspian journal of environmental sciences 2006
m. f. baqual p. k. das

the co-inoculation of mulberry with phosphate solubilizing micro-organisms, nitrogen fixing bacteria and arbuscular mycorrhiza has influenced its macronutrient uptake through leaf. the data revealed that maximum nitrogen (484.12 kg /ha) , phosphorus (59.83 kg /ha) and potassium (244.61 kg/ha) uptake through leaf has taken place due to co-inoculation treatments as compared to the un inoculated t...

Journal: :تولید گیاهان زراعی 0
آرزو مولودی دانشگاه ملایر علی عبادی دانشگاه محقق اردبیلی سدابه جهانبخش هیئت علمی دانشگاه محقق اردبیلی

according to the drought as the most important environmental factor that limiting agricultural products and using nitrogen as the most consumed nutrition element in farming system, in this study investigates examined the effect of nitrogen on drought tolerance characteristics, including changes in total chlorophyll content, total protein content, leaf area, phosphorus and peroxidase enzyme acti...

Journal: :تولید گیاهان زراعی 0

in order to investigate the yield and yield components of four lentil genotypes (local line, local bulk, ill-10314 and ill-6037 genotypes) as affected by three urea nitrogen levels including 0, 45 and 90 kg ha-1, a factorial experiment based on randomized complete block design with three replications was carried out in agriculture and natural resources research center of ardabil, during 2008. b...

Journal: :Frontiers of Agricultural Science and Engineering 2019

Journal: :Journal of environmental quality 2013
Z H Bai L Ma O Oenema Q Chen F S Zhang

Milk production has greatly increased in China recently, with significant impacts on the cycling of nitrogen (N) and phosphorus (P). However, nutrient flows within the changing dairy production system are not well quantified. The aim of this study was to increase the quantitative understanding of N and P cycling and utilization in dairy production through database development and simulation mod...

Abbas Maleki, Alireza Pazoki, Fatemeh Jahani

Although herbs have been important and attractive since long time ago, they have gained such popularity due to the adverse side effects of chemical medicines that nowadays their cultivation has become among significant agricultural programs of most developed countries. In order to study the effects of chemical, organic, and biological fertilizers on Medicinal Chamomile yield and its components,...

2017
Yong Wu Xiaohong Shi Changyou Li Shengnan Zhao Timothy R. Green

Intensive agricultural activities in the Hetao irrigation district have severely degraded local aquatic ecosystems and water quality, and Ulansuhai Lake is now the most rapidly degrading eutrophic lake in China. A better understanding of the hydro-agronomic and pollutant transport processes in the area is thus urgently needed. This study simulated monthly streamflow, total nitrogen (TN) and tot...

Journal: :پژوهش های زراعی ایران 0
سعیده رحیم زاده یوسف سهرابی غلامرضا حیدری علیرضا عیوضی سید محمد طاهر حسینی

in order to investigation the effect of different fertilization treatments on nutrient and essential oil contents in dragonhead drug (dracocephalum moldavica l.), an experiment was conducted in the station of agricultural research in urmia on 2008. treatments (nitroxin, barvar phosphate biofertilizer, biosulfur, nitroxin+ barvar phosphate biofertilizer, barvar phosphate biofertilizer + biosulfu...

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