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a fertilizing agent added to agricultural soils, in the form of an added chemical, or manure.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

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 ?
Many gardeners use one of the popular brands of water-soluble, chemical fertilizer, but they all work well as long as you follow their specific application directions.
HYDERABAD -- The introduction of environment-friendly bio-control technology by Nuclear Institute of Agriculture, Tando Jam would not only control the excessive use of chemical fertilizers and pesticides, but it also save huge foreign exchange being spent for import of inorganic manure in the country.
Total ban on chemical fertilizers devoid of scientific bases
The treatments were; chemical fertilizer NPK (15:15:15) at 150 kg per ha, chicken manure at rate of 20t/ ha combination of NPK and chicken manure and the control (without fertilizer).
TEHRAN (FNA)- A senior official with Iran's National Petrochemical Company (NPC) said the country is expected to produce record-breaking amounts of chemical fertilizers by March 2016.
T5- Site specific integrated use of the chemical fertilizer and MSWC in 80: 20 ratio.
Such benefits as increase in number of jobs in construction of a plant for chemical fertilizers are nothing compared to huge negative consequences from those chemicals, "Bio-KG" program coordinator Sultan Sarygulov said.
Some of the major harmful effects of agro-chemicals are: (1) Land turns infertile due to adverse side effects of the chemical fertilizers. (2) Plants lose their capacity to resist pest and insects and become susceptible to many sorts of diseases.
The typical farmer, who uses the recommended 6 bags of chemical fertilizer, can produce 80 to 100 cavans per hectare.
These results showed that bio-slurry application increases the plant growth and ultimate yield as compared to controlled as well as chemical fertilizer treatments in case of cabbage crop significantly.
Manama: April 23 -- (BNA) A high-level delegation from GPIC led by GPIC's GM Engineer Ahmed Nour El-Din carried out a visit to the Qatari Chemical Fertilizers Company on 9 April 2012.
It argues that integrated use of organic and chemical fertilizer plays greater role in the improvement of growth and development of plant.

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