Fertilizer
* All fertilizers are non toxic, orthane or pounce
  - can cause injury to plants when applied in excess
  - have three numbers
* Consider replacing fertilizers with organic compost.
* Many fertilizers are available to supply additional nutrients
  - formulated for specific plants like roses, bulbs, or vegetables
  - known irritants of the gastrointestinal tract
  - can time the release of nutrients
  - come in specially designed formulas for indoor plants
* Most fertilizer adds necessary nutrients
* Most fertilizer contains ammonium
  - basic nutrients
  - essential nutrients
  - impurities
  - irons
  - microorganisms
  - minerals
  - phosphorus
  - plant nutrients
  - potassium nitrate
  - trace minerals
  - encourages growth
* Most fertilizer has harmful effects
  - negative effects
  - numerous harmful effects
  - properties
* Most fertilizer helps iron deficiencies
  - increases growth
  - is applied at or before planting on field crops
* Most fertilizer is made of materials
  - organic materials
  - such materials
  - used by farmers
* Most fertilizer provides nutrients
* Most fertilizer stimulates rapid growth
  - plant growth
* Most fertilizers also contain some of the micro-nutrients
  - cause a ph change in the soil
* Most fertilizers contain nitrogen and phosphorous, two elements that are essential to life
  - nitrogen, potassium and phosphorus
  - phosphorus and potassium in addition to nitrogen
  - various mixtures of two or more sources of nutrients
  - slowly release nitrogen with salt
* Some fertilizer attracts insects
  - causes pollution
* Some fertilizer contains chloride
  - plant food elements
  - potassium chloride
  - sulfur
  - has amounts
* Some fertilizer includes gypsums
  - synthetic gypsums
  - leads to degradations
* Some fertilizer stimulates oat emergence
  - wild oat emergence
  - fertilizers also release ammonia, which is toxic to fish
* Some fertilizers are incomplete, that is, they contain only one or two of the nutrients
  - made from chemicals
  - break down slowly, providing a continuous source of nutrients
* Some fertilizers contain additional potassium and can be used to be on the safe side
  - only organically derived nutrients
  - only supply one nutrient
* Use unfinished compost, mulch.
* absorbs water.
* act to supplement the natural deficiency as well as the depletion of nutrients.
* add elements essential for healthy growth
  - nutrients to the soil
* also have the potential to contaminate groundwater when over-applied
  - help to reduce global warming because they improve plant nutrition
* are 'salts' and so can cause plant injury just as easily in some cases as rock salt
  - Qatar's second most important export
  - added to the soil to supply elements essential to the growth of plants
* are also available in organic and inorganic forms
  - important in predisposing the plants to disease
  - any material that provides any of the nutrients plants use as food
  - applied to crops both as solids and as liquid
* are available in a water soluble or granular form
  - both organic and inorganic form
  - commercial inorganic or organic forms
  - dry and liquid forms
  - classified in several ways
  - concentrated fertilizer particles of the major nutrients required by plants
  - essential to maintain and increase production
  - expensive
  - food for the plant
  - important ingredients in plant health management
  - one type of soil amendment
  - oxidants and can accelerate a fire
  - rich in such nitrogenous materials
  - salt and when overused can burn or kill plants
  - salts of essential elements
* are salts that can dehydrate tender new root growth
  - further stress or kill trees if water is inadequate
  - sort of like vitamins for plants
* are substances added to enrich soil making it better for the plant
  - that supply plant nutrients or amend soil fertility
  - unlikely to cause serious harm unless burns or an allergic reaction occur
  - very caustic and can burn and kill the roots of young trees
* are, chemically, salts.
* bring about some improvement, but poverty is an impediment to their use.
* can be expensive and are manufactured using nonrenewable fossil fuels
  - create salty conditions in the soil
  - harm newly planted trees very easily
  - help fast-growing annuals reach their maximum height and bloom
* can increase hay production, but it can also create weed problems
  - plant vigor and improve flowering
* can run off lawn when it rains and find their way into rivers and lakes
  - the soil surface and contaminate nearby streams and lakes
* causes the natural algae to experience rapid population growth, known as a bloom.
* come in both inorganic and organic forms
  - many forms and are applied in many ways
  - several forms
* comes second to water in producing color and size, two attributes of good growth.
* contain different amounts of heavy metals
  - large amounts of nitrogen and phosphorus- primary nutrients for algae
  - many variations of minerals
  - nitrogen and phosphorous that can cause large amounts of algae to grow
  - nutrients such as nitrogen, phosphorus and potash
* containing ammonium nitrogen seem to be best for the plants
  - iron have the potential to cause problems, but very infrequently
  - only nitrogen and potassium are commercially available
  - urea, making it a fairly effective ice melter
* create lush growth susceptible to the heat.
* deplete many important minerals from food.
* differ in their alkalinity or acidity depending on composition
  - amounts of the nutrients nitrogen, phosphorus and potassium
* display the balance of nitrogen, phosphorus, and potassium using three numbers.
* double-edged sword.
* encourage weed growth and lush foliage rather than flowers.
  - new growth and then the plants water needs are greater
* enhance consumer products
* exemplifies factors that farmers use abundantly to raise yields.
* facilitates growth.
* feed the growing world.
* feeds plants while it cleans.
* forces new trees to expend meager energy stores.
* has effects
  - term effects
* help plants grow.
* helps deficiencies
  - keep the color in the foliage
* helps, just like the right soil, water, sunshine, etc.
* highly efficient industry but is overshadowed by government policies.
* improves survival.
* increase crop production and improve lawns and gardens dramatically
  - fish yields
  - plant growth only if it limiting factor
* is almost never a help to stressed plants, but mulching with good compost can be
  - also a main culprit in the use of the other chemicals
  - any material that supplies one or more of the essential nutrients to plants
* is applied according to soil tests taken every three to four years
  - as sidedress when strawberries are planted
  - at planting time
  - with the irrigation water, mainly nitrogen phosphate and potassium
* is available in dry and liquid forms
  - liquid and in granular forms
  - both costly and risky for farmers to use
  - consumable products
  - especially important when growing plants in wire baskets
  - essential for good lawn growth
  - fertilizer, regardless of the brand name
  - important for healthy daylilies
  - located in garages
  - most effective when plants are growing most vigorously
  - much too expensive to use for weed feed
  - natural or manufactured material that boosts plant growth when added to the soil
  - often misunderstood and misused
  - only one component of the way plants generate their food
* is organic or inorganic
  - sea weed
  - spread underneath every tree according to leaf and soil analysis
  - unnecessary since it is best to throw the plant away after flowering
* kill amphibians when they run off a field and into a pond.
* maintain turfgrass density, vigor, and color.
* make crops grow more quickly, but can also poison rivers and streams
  - grass grow faster, requiring more mowing
* makes for numerous green leaves, but at the expense of weak cell walls.
* material which provides nutrients to plant roots in a form that the roots can use.
* means crops, which is human fuel.
* needs vary according to soil types and area of the country.
* now come in many forms, making the choices of what to use even more confusing.
* often produce a flush of new growth the psyllids favor.
* only helps fix problems when the plant is deficient in a certain nutrient.
* plants each spring according to soil test results.
* play a vital role in agriculture.
* primarily promotes growth.
* produces green leaves, encourages new growth and helps fruit crops to develop
  - plant growth and the stage of maturity determines forage quality
* production input that can easily increase the profit margin.
* promote growth but increase water consumption
  - of algae and aquatic vegetation beyond what is naturally sustainable
  - root and shoot growth and produce a dark green color
* promotes foliage growth and slows the flowering stage of the plant.
* protect the environment.
* provide elements that are essential to plant growth and development
  - faster plant growth and greater amounts of food produced per plant
  - needed minerals
* provides benefits
  - nitrogen, phosphorus, potassium and certain key elements like iron
  - nutrients for spring growth
* quickly break down to provide specific nutritional needs to plants.
* run-off causes excess growth of algae or weeds, which can choke the ponds.
* speed unpleasant algae growth.
* stick around a little longer.
* stimulate growth and increase water needs
  - production of natural foods for fry
* stimulates germination
* supplement the roots with nutrients drawn from the soil.
* supplying the ammonium form of nitrogen are best.
* takes time to work well.
* therefore represent an essential ingredient in the drive towards world food security.
* used in ponds stimulate the growth of microscopic plants called algae
  - soils create an imbalance of minerals in soils and plants
* uses in farms.
* usually contains nitrogen, phosphate and potash
  - is incorporated into the soil at the time the planter is filled
* vary considerably in price.
* vary in moisture content and in size and particle density
  - the availability of nutrients
  - their tendency to burn roughly in accordance with their salt index