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a fertilizing agent added to agricultural soils, in the form of an added chemical, or manure.


material added to soil to improve its fertility by adding to its chemical composition. Usually infers a chemical agent such as superphosphate but blood and bone and kelp humus are included also. Some of them, e.g. calcium cyanamide, ammonium sulfate, urea, can cause poisoning.

Patient discussion about fertilizer

Q. i just have my period last november 25 and ended on 28.when is my possible fertile and ovulation period please help me identify my fertile and ovulation period

A. If someone knew it, it'd solve the human race many problems with fertility. The problem is that ovulation (and thus, the period of possible fertility) happens 14 days BEFORE the onset of menses, so you know about it only retrospectively.

However there ways such as serial body temperature measuring, along with kits that measures the level of hormones in the urine in order to estimate the time of the coming ovulation, and help in timing intercourse.

You may read more about it here (www.mayoclinic.com/health/ovulation-signs/AN01521 ) but anyway, consulting a doctor (e.g. gynecologist) may be wise.

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References in periodicals archive ?
Few of the leading players operating in Iran fertilizers market include Pardis Petrochemical Company, Kermanshah Petrochemical Company, Khorasan Petrochemical Company, Razi Petrochemical Company and Shiraz Petrochemical Company.
Kelp has a high occurrence of natural hormones and vitamins that plants use, and that many commercial fertilizers have tried to mimic.
Not to mention trekking to the nursery and lugging home heavy bags of fertilizer, and then worrying over dispersing their granular contents effectively.
Consumer preference can drive the market on waste-derived fertilizers By purchasing the cleanest fertilizers available, consumers will force manufacturers to clean up their products.
But over the next 50 years, Galloway says, the developing world's growing dependence on nitrogen fertilizers, rising population densities, and adoption of gasoline-powered vehicles are all likely to result in increases in nitrogen-related environmental and human health impacts.
It was the successful culmination of work by WasteCap Wisconsin, Royster-Clark and many others testing whether scrap drywall could be used as a source for gypsum in the manufacture of fertilizer.
Cool temperatures and relatively dry soils in many parts of the Corn Belt allowed some growers to apply fertilizer early.
N, CAN, AS, NP, and SSP are produced and marketed besides imported Fertilizers, by both Public and Private Sector.
The researchers also examined contributing factors such as fertilizer use, automobile and industrial emissions of nitrogen oxides, and lightning and other natural sources of nitrates.
On the basis of an overall analysis and review of China's fertilizer market in 2012, and combining the national economic situation and the policy change, BOABC will make an in-depth analysis of the trends of China's fertilizer market in 2013 and provide a clear judgment for people at home and abroad who focus on China's fertilizer market as a reference for their decision-making.
A new conference explores the business considerations of operating in the specialty and premium fertilizer market -- an increasingly critical sector for the industry
The report consists of in-depth study of European nitrogenous fertilizers market and its application in grain and oilseeds, fruits & vegetables, and other crops.