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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 ?
5: Relative proportion of nitrogen fertilizer use of the 33 commodities included in the analysis.
It accounts for approximately 20 percent of global nitrogen fertilizer use.
In experiment 1, 7 levels of nitrogen fertilizer and 4 levels of Nitroxin biofertilizer as factorial based on randomized complete block design conducted in 3 replications.
As of 2000, about 100 Tg of reactive nitrogen were released each year from nitrogen fertilizer spread on farmlands around the world, according to the BioScience review.
to own, operate and expand its nitrogen fertilizer business.
Different levels of nitrogen fertilizer (Factor N), including 0, 80, 160 and 200 kg ha as the main factor in the main plots and varieties (Factor V), and Agria Satyna include as sub-subplots were the plots, thus 8 blocks in each experimental plot with dimensions 5 x 4.
Excessive nitrogen fertilizer cut the vitamin C content of three green vegetables in experiments done by Sharon B.
The aim of this study was study of yield and yield components of durum wheat varieties Seimareh affected by levels of nitrogen fertilizer and plant density.
We will help make farmers impervious to external energy price volatility, while converting agricultural waste into nitrogen fertilizer to replenish the soil.
Agriculture accounts for 80% of human-caused nitrous oxide emissions worldwide, which increased substantially due to increased nitrogen fertilizer use.
Waddell et al [9] reported that nitrogen fertilizer, increased gland was compared with the controls.