نتایج جستجو برای: micronutrient fertilizer

تعداد نتایج: 24531  

2013
Drew W Davidson Mohit S Verma Frank X Gu

AIMS The recent increases in food prices caused by the corresponding increases in fertilizer costs have highlighted the demand for reducing the overuse of fertilizers in industrial agriculture. There has been increasing interest in developing plant root-targeted delivery (RTD) of fertilizers in order to address the problem of inefficient fertilizer use. The aim of this study is to develop a low...

2016
Holger Brueck Joachim Lammel Arjen Y. Hoekstra

Nutrient management is central in water footprint analyses as it exerts strong control over crop yield and potentially contributes to pollution of freshwater, the so-called grey water footprint. In the frame of grey water footprint accounting, two methods are suggested, the constant leaching fraction approach (10% of applied fertilizer N) and the N surplus approach. We compared both approaches ...

2013
I. Kareem

Currently the world is moving towards organic production of crops for the discovered and envisaged advantages. Despite this, farmers are faced with the challenges of the bulkiness of organic fertilizer to be used and further gains that could be accrued from it even if sacrifice of using it is made. To be quite sure of the appropriate fertilizer type to be used in improving quality as well as th...

2015
Anna K. Simonsen Shery Han Phil Rekret Christine S. Rentschler Katy D. Heath John R. Stinchcombe David Day

Fertilizer application is a common anthropogenic alteration to terrestrial systems. Increased nutrient input can impact soil microbial diversity or function directly through altered soil environments, or indirectly through plant-microbe feedbacks, with potentially important effects on ecologically-important plant-associated mutualists. We investigated the impacts of plant fertilizer, containing...

2006
Esther Duflo Michael Kremer Jonathan Robinson

1 Why don’t farmers use fertilizers: 2 Evidence from Field Experiments in Western Kenya 3 (PRELIMINARY AND INCOMPLETE) 4 April 29, 2006 5 6 Esther Duflo, Michael Kremer and Jonathan Robinson 7 8 9 Abstract 10 11 This paper reports on randomized field experiments set up to investigate 12 various reasons for the low usage of fertilizer in Western Kenya. 13 Demonstration plots set up on farmer’s f...

Sara Madeh Khaksar Shahram Lack,

BACKGROUND: Addition of fertilizers to supplement the natural soil fertility is essential for modern crop production, and precise management of nutrient elements is essential for a sustainable agriculture production. OBJECTIVES: Current study was conducted to assessment effect of different level of micronutrient crop production and seed protein content of whea...

Journal: :Asia Pacific journal of clinical nutrition 2016
Henry E Mark Lisa A Houghton Rosalind S Gibson Eva Monterrosa Klaus Kraemer

Micronutrient deficiencies continue to be a major public health concern worldwide with many South Asian countries suffering a significant proportion of the global burden. A lack of nationally representative data on micronutrient deficiencies hampers sustained action to address the problem. Using data on the national food supply produced by the Food and Agriculture Organisation of the United Nat...

Journal: :Nutrition journal 2016
Roberto Iacone Clelia Scanzano Lidia Santarpia Anna D'Isanto Franco Contaldo Fabrizio Pasanisi

BACKGROUND The micronutrient content in standard enteral mixtures should be closer to the dietary reference values for a healthy population since standard enteral diets are formulated for subjects with no special nutritional needs. This study compares the micronutrient content of the most common enteral nutrition (EN) formulas with European dietary reference values (DRVs) for healthy population...

Journal: :Asia Pacific journal of clinical nutrition 2012
Geok Lin Khor Snigdha Misra

It is estimated that more than 200 million young children worldwide fail to reach their potential in cognitive development owing to undernutrition. Numerous studies have assessed the effects of micronutrient supplementation on growth and cognitive development in infants, toddlers and preschoolers. However, micronutrient interventions on the cognitive performance of older children are limited. T...

Journal: :The Journal of nutrition 2012
Richard D Semba

Multiple micronutrient nutrition is an idea that originated in the 1940s and exemplifies the iterative nutritional paradigm. In the first four decades of the 20th century, scientists sought to separate and characterize the vitamins that were responsible for xerophthalmia, rickets, pellagra, scurvy, and beriberi. The dietary requirements of the different micronutrients began to be established in...

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