نتایج جستجو برای: calcium fertilizers

تعداد نتایج: 180799  

2011
Philip J. White Martin R. Broadley

It has been estimated that one-third of the world's population lack sufficient Zn for adequate nutrition. This can be alleviated by increasing dietary Zn intakes through Zn biofortification of edible crops. Biofortification strategies include the application of Zn-fertilizers and the development of crop genotypes that acquire more Zn from the soil and accumulate it in edible portions. Zinc conc...

2015
Marcel Viana Pires Dênis Antônio da Cunha Sabrina de Matos Carlos Marcos Heil Costa Upendra M. Sainju

The agriculture sector has historically been a major source of greenhouse gas (GHG) emissions into the atmosphere. Although the use of synthetic fertilizers is one of the most common widespread agricultural practices, over-fertilization can lead to negative economic and environmental consequences, such as high production costs, depletion of energy resources, and increased GHG emissions. Here, w...

2017
Flavio Gazzani

Nitrogen fertilizers is an essential input into modern agriculture, however the use of large amounts of this mineral fertilizers caused in the last three decades enormous environmental impacts such as eutrophication of waters and soils, loss of biodiversity, drinking water pollution and human health risks. The agri-environmental policy plays a crucial role to internalize pollution externalities...

2014
M. R. Islam M. B. Rashid A. B. Siddique H. Afroz

A field experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural University (BAU), Mymensingh during Aman season of 2011 to evaluate the effects of manures and fertilizers for maximizing the yield of BRRI dhan49. The experiment had six treatments, laid out in a randomized complete block design (RCBD) with four replications. The treatments were T0 = Control, T1 = ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Mathieu Sebilo Bernhard Mayer Bernard Nicolardot Gilles Pinay André Mariotti

Increasing diffuse nitrate loading of surface waters and groundwater has emerged as a major problem in many agricultural areas of the world, resulting in contamination of drinking water resources in aquifers as well as eutrophication of freshwaters and coastal marine ecosystems. Although empirical correlations between application rates of N fertilizers to agricultural soils and nitrate contamin...

2013
Catherine Tétard-Jones Martin G. Edwards Angharad M.R. Gatehouse Mick Eyre Stephen J. Wilcockson Carlo Leifert

There is increasing concern about the sustainability and environmental impacts of mineral fertilizer use in agriculture. Increased recycling of nutrients via the use of animal and green manures and fertilizers made from domestic organic waste may reduce reliance on mineral fertilizers. However, the relative availability of nutrients (especially nitrogen) is lower in organic compared to mineral ...

2014
G. Brett

Use of enhanced-efficiency N fertilizers (EENFs) in row crop agriculture has not been well studied despite increasing interest in these N sources to increase crop yield while decreasing N loss. A field study was conducted in Central Alabama from 2009 to 2011 to compare EENFs to standard N sources in a high-residue conservation cotton production system. Nitrogen fertilizers evaluated were: urea;...

2000
Salvatore Russo

Abstract. Large quantities of N fertilizers may be lost in rice fields by nitrification-denitrification. In this connection, experiments were carried out in order to compare the effects from slow-release N-fertilizers (ISODUR) and products integrated with diciandiamide (DCD), a nitrification inhibitor, with the N splitting method applied in two or three times on the rice growth and yield. The e...

Journal: :Horticulturae 2021

Strawberries are rich in antioxidants and plant components to enhance cardiac health regulate blood sugar. This experiment investigates the effects of N fertilization foliar spraying with calcium (Ca) boron (B) on growth, chemical composition foliage, fruit yield, quality strawberry plants (Fragaria × ananassa Duch. cv. Fortuna). includes 12 treatments from combination between four fertilizers ...

Journal: :ACS applied nano materials 2022

Excess urea fertilizer application to the agricultural fields causes severe environmental deterioration. Researchers actively seek safer alternatives, such as nanoparticles with unique properties, reduce chemical inputs without compromising output. In present study, three variants─hydroxyapatite–urea, magnesium-doped hydroxyapatite–urea, and zinc-doped hydroxyapatite–urea nanohybrids─have been ...

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