نتایج جستجو برای: nitrogen fertiliser placement

تعداد نتایج: 194745  

Journal: :Agriculture, Ecosystems & Environment 2023

Efficient fertiliser nitrogen (N) management is critical to global food production and ecosystem health. Considering sheep grazing systems as whole ecosystems, quantifying key services provided by the soil microbial community, including plant N supply pollution mitigation, essential in assessments of use efficiency (NUE). Using a approach, we disassembled low-intensity (>5 ewe ha?1) grazed gras...

2004
J H MEYER R A WOOD D J NIXON A L RAMPERSAD B L SCHROEDER A W SCHUMANN Dan Pienaar

This year, the Experiment Station’s Fertiliser Advisory Service (FAS) enters its 50th year of service to the industry. Since it was commissioned in 1954, FAS has achieved recognition as one of the leading agricultural laboratories, not only in South Africa, but also in other cane producing countries. The laboratory provides an efficient and reliable service to growers and research workers, givi...

2009
Colin S. Gillespie Andrew Golightly

In this paper we analyse the effects of various treatments on cotton aphids (Aphis gossypii). The standard analysis of count data on cotton aphids determines parameter values by assuming a deterministic growth model and combines these with the corresponding stochastic model to make predictions on population sizes, depending on treatment. Here, we use an integrated stochastic model to capture th...

Journal: :International Journal of Life Cycle Assessment 2022

Abstract Purpose The intensive application of nitrogen and phosphorus fertilisers on agricultural land to fertilise crops has caused eutrophication, the nutrient enrichment waterbodies leading excessive growth algae, deoxygenation loss aquatic biodiversity. Life cycle impact assessments (LCIA) are often used determine environmental impacts fertiliser use. However, lack suitable methodologies es...

Journal: :Modern concepts & developments in agronomy 2022

Modern Concepts & Developments in Agronomy Investigation of R-Leaf Technology as a New Source Nitrogen Fertiliser for Crop Yield and Productivity-A Field Trial Rahul Ramalingam2, Ramana Sundara2, Sankeerthana Bellamkonda1* Apostolos Papadopoulos1* 1Crop Intellect Limited, United Kingdom 2Lincoln Institute Agri-Food (LIAT), *Corresponding author: Bellamkonda Papadopoulos University Lincoln, Subm...

Journal: :Agronomy 2022

Feeding a growing population, which will reach 10 billion in 2050, is major challenge. Another challenge to increase crops’ productivity sustainable way, as the agricultural inputs may lead greenhouse gas emissions, including N2O fertiliser. Several factors can influence emissions such irrigation, soil management system, or type of fertiliser used. The aim this research study impact each above-...

Journal: :Current Biology 2012
Michael Gross

Exactly one hundred years ago, workers and engineers at the small town of Oppau near Ludwigshafen, Germany, were busy constructing a new factory that would start a more drastic change to global biogeochemistry than any other human intervention before or since. Towards the end of 9 , the chemicals company BASF had commissioned Carl Bosch to build the first industrial scale ammonia plant based on...

Journal: :Medical and veterinary entomology 2000
T J Victor R Reuben

The effects of nitrogenous (inorganic) fertilisers, organic manures and blue-green algae (BGA) biofertiliser on mosquito populations (Diptera: Culicidae) were studied in rice fields of Madurai, Tamil Nadu, south India, with particular attention to Culex vishnui Theobald, Cx. pseudovishnui Colless and Cx. tritaeniorhynchus Giles, the vectors of Japanese encephalitis (JE). The application of urea...

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