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No. 260
Manure is organic matter, mostly derived from animal feces except in the case of green manure, which can be used as organic fertilizer in agriculture. Manures contribute to the fertility of the soil by adding organic matter and nutrients, such as nitrogen, that are trapped by bacteria in the soil. Higher organisms then feed on the fungi and bacteria in a chain of life that comprises the soil food web. It is also a product obtained after decomposition of organic matter like cow dung which replenishes the soil with essential elements and add humus to the soil.
In the past, the term “manure” included inorganic fertilizers, but this usage is now very rare. Animal manure
Cement reservoirs, one new, and one containing cow manure mixed with water. This is common in rural Hainan Province, China.
Most animal manure consist of feces. Common forms of animal manure include farmyard manure (FYM) or farm slurry (liquid manure). FYM also contains plant material (often straw), which has been used as bedding for animals and has absorbed the feces and urine. Agricultural manure in liquid form, known as slurry, is produced by more intensive livestock rearing systems where concrete or slats are used, instead of straw bedding. Manure from different animals has different qualities and requires different application rates when used as fertilizer. For example horses, cattle, pigs, sheep, chickens, turkeys, rabbits, and guano from seabirds and bats all have different properties.[1] For instance, sheep manure is high in nitrogen and potash, while pig manure is relatively low in both. Horses mainly eat grass and a few weeds so horse manure can contain grass and weed seeds, as horses do not digest seeds the way that cattle do. Chicken litter, coming from a bird, is very concentrated in nitrogen and phosphate and is prized for both properties.
Animal manures may be adulterated or contaminated with other animal products, such as wool (shoddy and other hair), feathers, blood, and bone. Livestock feed can be mixed with the manure due to spillage. For example, chickens are often fed meat and bone meal, an animal product, which can end up becoming mixed with chicken litter.
Human manure
Main article: Reuse of excreta
Some people refer to human excreta as human manure, and the word "humanure" has also been used. Just like animal manure, it can be applied as a soil conditioner (reuse of excreta in agriculture). Sewage sludge is a material that contains human excreta, as it is generated after mixing excreta with water and treatment of the wastewater in a sewage treatment plant.
Compost containing turkey manure and wood chips from bedding material is dried and then applied to pastures for fertilizer.
Compost
Main article: Compost
Compost is the decomposed remnants of organic materials. It is usually of plant origin, but often includes some animal dung or bedding.
Green manure
Green manures are crops grown for the express purpose of plowing them in, thus increasing fertility through the incorporation of nutrients and organic matter into the soil. Leguminous plants such as clover are often used for this, as they fix nitrogen using Rhizobia bacteria in specialized nodes in the root structure.
Other types of plant matter used as manure include the contents of the rumens of slaughtered ruminants, spent grain (left over from brewing beer) and seaweed.
Uses of manure
Animal manure
Manure on a wall.
Animal manure, such as chicken manure and cow dung, has been used for centuries as a fertilizer for farming. It can improve the soil structure (aggregation) so that the soil holds more nutrients and water, and therefore becomes more fertile. Animal manure also encourages soil microbial activity which promotes the soil's trace mineral supply, improving plant nutrition. It also contains some nitrogen and other nutrients that assist the growth of plants.
Manures with a particularly unpleasant odor (such as slurries from intensive pig farming) are usually knifed (injected) directly into the soil to reduce release of the odor. Manure from pigs and cattle is usually spread on fields using a manure spreader. Due to the relatively lower level of proteins in vegetable matter, herbivore manure has a milder smell than the dung of carnivores or omnivores. However, herbivore slurry that has undergone anaerobic fermentation may develop more unpleasant odors, and this can be a problem in some agricultural regions. Poultry droppings are harmful to plants when fresh but, after a period of composting, are valuable fertilizers.
Manure is also commercially composted and bagged and sold retail as a soil amendment.[citation needed]
Before motor vehicles became common, horse droppings were a big part of the rubbish that communities needed to clean off roads.
Precautions
Manure generates heat as it decomposes, and it is possible for manure to ignite spontaneously if stored in a very large pile.[2] Once such a large pile of manure is burning, it will foul the air over a wide area and require considerable effort to extinguish. Therefore, large feedlots must take care to ensure that piles of fresh manure do not get excessively large. There is no serious risk of spontaneous combustion in smaller operations.[citation needed]
There is also a risk of insects carrying feces to food and water supplies, making them unsuitable for human consumption.
Livestock antibiotics
In 2007, a University of Minnesota study[3] indicated that foods such as corn, lettuce, and potatoes have been found to accumulate antibiotics from soils spread with animal manure that contains these drugs.
Organic foods may be much more or much less likely to contain antibiotics, depending on their sources and treatment of manure. For instance, by Soil Association Standard 4.7.38, most organic arable farmers either have their own supply of manure (which would, therefore, not normally contain drug residues) or else rely on green manure crops for the extra fertility (if any nonorganic manure is used by organic farmers, then it usually has to be rotted or composted to degrade any residues of drugs and eliminate any pathogenic bacteria — Standard 4.7.38, Soil Association organic farming standards). On the other hand, as found in the University of Minnesota study, the non-usage of artificial fertilizers, and resulting exclusive use of manure as fertilizer, by organic farmers can result in significantly greater accumulations of antibiotics in organic foods.[3]
No. 272
>>260I tots kek anon XDDD.
Dumb
No. 276
any women complain that their vaginas are "too tight" or "too loose," and many men raise the issue about lovers. Notions of vaginal tightness and looseness are fraught with mythology. Many people believe that (1) the virgin vagina is extremely tight, (2) that loss of virginity permanently loosens it, (3) that frequent sex loosens it further (so don't be promiscuous, girls!), and (4) that childbirth loosens the vagina even more and possibly forever after. The truth is considerably different.
Vaginal Tightness
Imagine a hand towel stuffed inside a thick sock squeezed by two hands. The sock is the vagina. The towel is the folded muscle tissue of the vaginal wall. And the hands are the pelvic floor muscles that surround the vagina.
The vagina's tightly folded muscle tissue is very elastic, like an accordion or the mouth. Try this: Pull the corners of your mouth out toward your ears then let go. What happens? The mouth immediately snaps back to its pre-stretched state because the tissue is elastic. Do it 100 times. There's no permanent stretching. The mouth quickly returns to its pre-stretched state and no one would ever know you'd stretched it.
The same goes for the vagina, with two exceptions I'll discuss shortly. When it's at rest–all the time except sexual arousal and childbirth–the vagina's muscle tissue remains tightly folded like a closed accordion. Anxiety makes the vaginal musculature clench even tighter. That's why young girls sometimes have problems inserting tampons. Their vaginal muscle tissue is tight and contracted to begin with, and many girls feel anxious about touching themselves and inserting anything, so the muscles contract even tighter.
As women become sexually aroused, vaginal muscle tissue relaxes somewhat. Biologically, this makes perfect sense. Evolution is all about facilitating reproduction. A tight vagina would impede intercourse and reproduction, so women evolved to have sexual arousal relax the vaginal muscles, allowing easier insertion of erections–and greater chance of pregnancy.
However, arousal-related vaginal loosening does NOT produce a big open cavity like the inside of a sock. Rather, the vaginal interior changes from resembling a tight fist to a fist loose enough to insert a finger or two.
If the vagina feels "too tight" during lovemaking, the woman is either (1) not interested in sex, or (2) she has not had enough warm-up time to allow her vaginal musculature to relax enough for comfortable insertion.
A man who attempts intercourse before the woman is fully aroused–before her vagina has relaxed and become well lubricated–is either sexually unsophisticated or a boor. Most women require at least 30 minutes of sensuality—kissing, hugging, and mutual massage for their vaginas to relax enough to allow the penis to slide in comfortably. That's why leisurely, playful, whole-body lovemaking is so important. It gives women (and men) the warm-up time they need. In addition, it also allows the vagina to relax, and, in most women, produce enough natural lubrication for comfortable intercourse. In other words, the solution to vaginal tightness is extended foreplay. It you need more lubrication, try a commercial lubricant.
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One final note: If a woman experiences pain and/or great difficulty inserting a tampon or accepting an erection, the cause may be vaginismus, unusual clenching of the vaginal muscles. For suspected vaginismus, consult a physician.
Vaginal Looseness
After relaxing during sex, vaginal muscle tissue naturally contracts—tightens—again. Intercourse does NOT permanently stretch the vagina. This process, loosening during arousal and tightening afterward, happens no matter how often the woman has sex.
The vagina stretches a great deal during childbirth, like an accordion opened all the way. Post-partum does it re-tighten completely? Yes, usually, at least in young women, that is, women in their late teens and early twenties. Within six months after delivery, the typical young woman's vagina feels pretty much how it was before she gave birth.
Now for the two exceptions. If you stretch elastic a great deal, over time, it fatigues and no longer snaps back entirely. That can happen to the vaginas of young women after multiple births. Their vaginal muscles fatigue and no longer fully contract. In addition, aging fatigues vaginal muscle. Whether or not women have given birth, as they grow older, they may complain of looseness.
Today, many woman delay childbearing until after 30, and some have children after 40. Combine the rigors of older childbearing with the effects of aging on the vaginal muscles, and many women complain of looseness. Women who give birth after around 30 may notice persistent looseness after delivering only one child. Individual differences account for the fact that birth—and age—related looseness happens to some women and not others.
Here's a quick fix for vaginal looseness. Have intercourse in the man-on-top position. Once he inserts, he lifts himself up and the woman closes her legs. Her thighs squeeze his penis and make her feel tighter.
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The tightening approach most often recommended by sex therapists is Kegel exercises. Kegels, named for the doctor who popularized them, involve contracting the muscles used to interrupt urine flow or squeeze out the last few drops.
Kegels do, indeed, tighten the vagina, but they have nothing to do with the vaginal muscles. They strengthen the pelvic floor muscles that surround the vagina, the hands that hold the stuffed sock. Age and childbearing fatigue these muscles. The hands don't grip the sock as tightly and the towel feels loose. Kegels tighten the pelvic floor muscles. The hands squeeze the sock, which clamps down on the towel, and the vagina feels tighter.
Kegels are totally private. They can be practiced anytime anywhere. Start slowly and over several weeks, work up to a half-dozen sets of 10 contractions several times a day. In a few months, you should feel tighter. You should also enjoy more intense orgasms. The pelvic floor muscles contract during orgasm. As they become stronger, so do orgasms.
If several months of daily Kegels don't produce the tight feeling you want, try ben-wa balls or vaginal cones. Ben-wa balls are sold as sex toys. Insert them, then walk around the house trying to keep them from falling out. When the pelvic floor muscles are weak, the balls drop out quickly, but as the muscles grow stronger, women can hold the balls inside longer. Vaginal cones are similar, except they're prescribed by physicians. (To obtain ben-wa balls, visit MyPleasure.com.
If vaginal cones don't work, electrical stimulation of the vaginal muscles is your last resort. A nurse inserts a probe similar to a tampon and a mild electrical current causes muscle contractions that make the vagina feel tighter. Treatments happen in a urologist's office during 20- to 30-minute sessions usually twice a week for about eight weeks.
Unfortunately, the mythology of vaginal tightness and looseness is deeply ingrained. I'll probably get nay-saying comments from people who swear that deflowering caused permanent loosening. I'm not about to argue with anyone's experience. I'm just describing the physiology. What do you think?
No. 280
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You know what. I only came here to drop this dumb pic
No. 299
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>this thread is such poetry kek
>backs away slowly
No. 331
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okay
No. 333
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I wish my bf was an anthropomorphic dragon with a long, prehensile tentacle penis.
No. 339
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Lololololo lel
No. 342
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ayy lmao
No. 343
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Top kekerino
No. 385
the only decent thread on this site
>>382lol
No. 400
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Lolz how does this work
No. 403
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Dumb
No. 406
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Dumb
No. 5939
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