نتایج جستجو برای: nitrogenous fertilizer application rates

تعداد نتایج: 1191321  

Journal: :journal of agricultural science and technology 2012
a. okal p. okinda owuor d. kamau l. manguro

tea leaves contain unsaturated fatty acids, key precursors of volatile compounds contributing to tea aroma quality. tea is cultivated in areas with diverse environmental conditions. nitrogenous fertilizers influence tea yields and quality. a previous single site study demonstrated that increasing nitrogenous fertilizer rates raised fatty acid levels. however it is not known if the magnitudes an...

Felora Shamoradi Seyed Keyvan Marashi,

In order to investigate the effect of sugarcane compost on consumption of nitrogenous fertilizers in corn fields, a research project was conducted according split plot experiment based on randomized complete block design with three replications along 2015 year. The main plot included different chemical nitrogenous fertilizer (Zero; control, 60 and 120 kg.ha-1 pure nitrogen from urea ...

1999

Ammonia (NH3) is produced from atmospheric nitrogen and hydrogen from a hydrocarbon source. Natural gas is the most commonly used hydrocarbon feedstock for new plants; other feedstocks that have been used include naphtha, oil, and gasified coal. Natural gas is favored over the other feedstocks from an environmental perspective. Ammonia production from natural gas includes the following processe...

Journal: :Int. J. Applied Earth Observation and Geoinformation 2010
Abha Chhabra K. R. Manjunath Sushma Panigrahy

The paper presents a detailed understanding of nitrogenous fertilizer use in Indian agriculture and estimation of seasonal nitrogen loosses from rice crop in Indo-Gangetic plain region, the ‘food bowl’ of the Indian sub-continent. An integrated methodology was developed for quantification of different forms of nitrogen losses from rice crop using remote sensing derived inputs, field data of fer...

Peng Yun-feng Rui Yu-kui, Shen Jian-bo Wang Zheng-rui

In this study, nitrogen fertilizer was applied to corn (Zea mays L.) at conventional (excessive) and recommended levels, and the growth response was assessed by measuring plant height and stem perimeter. Corn plant maximum height was observed in recommended rates of N fertilizer treatment, and the height without N fertilizer was the same as that receiving excess N fertilizer. Stem perimeter was...

Muhammad Shoaib Shafi Syed Azam Shah Syed Mahmood Shah Wisal Mohammad

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: :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: :Journal of Nepal Agricultural Research Council 2022

Rice (Oryza sativa L.) is one of the world's most important cereal crops. Nitrogen plant nutrients for rice. Different forms nitrogenous fertilizer are major sources in rice production. affects various physiological and biochemical processes cells that ultimately affect growth development and, thereby, grain yield production can be increased by applying either as organic or inorganic at an appr...

2016
Yaojun Zhang Feng Lin Yaguo Jin Xiaofei Wang Shuwei Liu Jianwen Zou

It is of great concern worldwide that active nitrogenous gases in the global nitrogen cycle contribute to regional and global-scale environmental issues. Nitrous oxide (N2O) and nitric oxide (NO) are generally interrelated in soil nitrogen biogeochemical cycles, while few studies have simultaneously examined these two gases emission from typical croplands. Field experiments were conducted to me...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2007
Jennifer E Fox Jay Gulledge Erika Engelhaupt Matthew E Burow John A McLachlan

Unprecedented agricultural intensification and increased crop yield will be necessary to feed the burgeoning world population, whose global food demand is projected to double in the next 50 years. Although grain production has doubled in the past four decades, largely because of the widespread use of synthetic nitrogenous fertilizers, pesticides, and irrigation promoted by the "Green Revolution...

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