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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.

More discussions about fertilizer
References in periodicals archive ?
He said Iran's chemical fertilizer output grew 6% year-on-year during the first half of the current Iranian calendar year to March 20, 2016.
Chemical fertilizers give 90% fewer crop and pollute groundwaters," he said.
Remarking on the visit, GPIC's engineer Abdulrahman Jawaheri expressed gratitude and appreciation towards QAFCO'S CEO Engineer Khalifa Abdullah Al-Souwaidi and management for their kind hospitality and their provision of information to GPIC's delegation, citing the Qatari company's highly experience and qualified expert personnel particularly in the area of expansion of chemical fertilizer company gained while working in the Qafco5 and Qafco6 projects.
The results showed that the use of different amounts of chemical fertilizer treatments have significant difference at 1% level and more use of chemical fertilizers cause concentration of phosphorus in the shoot organs.
The most important point which need clarification is that chemical fertilizers are food for plants and are not vitamin or catalyst or undesirable additives.
The Holganix formula helps landscape and lawn care technicians maintain lush and green results with only a fraction of the previously required chemical fertilizers and pesticides.
The product is a type of biological fertilizer, and it significantly reduces the consumption of chemical fertilizers but improves the yield of plants.
Request for Proposal (RFP) has been invited by Investment Board Nepal from four shortlisted firms to carry out feasibility study to set up chemical fertilizers plant in Nepal.
Construction of the chemical fertilizers plant is under question, since construction of such plant requires significant investments, the Agriculture Ministry told Tazabek.
They serve as a suitable alternative to chemical fertilizers by adding nutrients through the natural processes of solubilizing phosphorus, nitrogen fixation, and stimulating plant growth through the synthesis of growth-promoters.
More than 8000 hectare land was covered under organic certifications in the state during first 6 years period till 2009 due to strong road map worked out by various government agencies under which sale of chemical fertilizers and pesticides was completely banned and subsidy on chemical fertilizers and pesticides was completely withdrawn in the state in May 2003.
The excessive use of chemical fertilizers has generated several environmental problems.

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