5 best nitrogen fertilizers

Nitrogen fertilizers are a type of fertilizer that provides essential nitrogen nutrients to plants, making them a crucial component of modern agriculture and gardening.Here is some information about nitrogen fertilizers in the context of fertilizers, plant food, soils, gardening, and lawn care:

Importance of Nitrogen: Nitrogen is one of the primary essential nutrients required for plant growth. It plays a crucial role in the formation of chlorophyll, which is essential for photosynthesis, the process by which plants convert sunlight into energy and produce their food.
Types of Nitrogen Fertilizers: Nitrogen fertilizers come in various forms, including ammonium nitrate, urea, ammonium sulfate, and calcium ammonium nitrate. Each type has its unique characteristics and is used in different applications.
Quick Release vs. Slow Release: Nitrogen fertilizers can be categorized as either quick-release or slow-release. Quick-release fertilizers provide an immediate supply of nitrogen to plants but can be washed away by rain or irrigation. Slow-release fertilizers release nitrogen gradually over time, providing a more sustained nutrient supply.
Application Methods: Nitrogen fertilizers can be applied to plants and soil in various ways, such as broadcasting, side dressing, foliar spraying, and fertigation (application through irrigation systems). The choice of application method depends on the specific needs of the plants and the desired timing of nutrient release.
Soil Testing: It's important to conduct soil tests to determine the nutrient levels in the soil before applying nitrogen fertilizers. This helps ensure that the right type and amount of fertilizer are used to meet the plant's needs without causing nutrient imbalances.
Environmental Impact: Excessive use of nitrogen fertilizers can have negative environmental impacts, such as nutrient runoff into water bodies, leading to water pollution and the development of "dead zones." Proper management practices are essential to mitigate these issues.
Fertilizer Labeling: Nitrogen content is typically prominently displayed on fertilizer labels as the first number in the N-P-K (nitrogen, phosphorus, potassium) ratio. For example, a fertilizer with an N-P-K ratio of 10-20-10 contains 10% nitrogen.
Role in Lawn Care: Nitrogen fertilizers are commonly used in lawn care to promote lush, green grass growth. However, overapplication can lead to excessive top growth at the expense of root development.
Crop Production: In large-scale agriculture, nitrogen fertilizers are a critical component of maximizing crop yields. Farmers carefully manage the application of nitrogen fertilizers to optimize plant growth and minimize environmental impacts.

In summary, nitrogen fertilizers are essential for promoting healthy plant growth and are a key component of modern agriculture and gardening practices. However, their use must be carefully managed to prevent environmental issues and ensure that plants receive the appropriate nutrients to thrive. Soil testing and proper application techniques are important for effective and responsible fertilizer use.

Below you can find our editor's choice of the best nitrogen fertilizers on the market

Easy Peasy Urea Fertilizer- 46-0-0 Plant Food 5 Pound Bag

Based on 753 reviews Check latest price

Product description

High quality, fast-acting sources of Nitrogen. From individual nutrients to common agricultural blends, this product line is designed for the gardener who needs an immediate response. While these products are considered “synthetic”, nothing in any of these products is hazardous or toxic. -Fast acting nutrients to stimulate growth. -Hard to find products for gardeners requiring immediate responses. -Safe to use. -No hazardous or toxic materials.

Highest quality nitrogen source that is easy and safe to apply to flowers, shrubs, and gardens.
Urea Nitrogen 46-0-0 provides safe and vigorous green growth of crops.
Resealable packing allows for safe storage for multiple uses.
Urea Nitrogen produces larger crops and flowers.

User questions & answers

Question:	What are the proportions to use per gallon of water? No instructions came with the package. Thanks
Answer:	Because that maybe the only color available in the size you prefer.
Question:	Can this be used to foliar feed
Answer:	They will fit a king size pillow.
Question:	for foliar feed, how many tsp should i mix my 1 gallon of water with to pray it, how often should i spray it? my soil has little nitrogen in it
Answer:	Yes it does have elastic all the way around. Fits great
Question:	What is the biuret content
Answer:	If it fits 16" mattress it is too deep for a 12" . I want 12". Deeper would be to sloppy looking.
Question:	Are these acidic? Will it help turn my hydrangea blue
Answer:	Once you ordered it, it will arrive. It is unavailable because yours was one of the last shipped. Amazon updates in stock/ out of stock listings quickly.
Question:	Is this good for poinsettas
Answer:	This pinch pleat comforter set is made of microfiber which is 100% polyester material. This material is soft and durable and lasts through multiple washings without changing the texture of the fabric. Thank you for your inquiry!
Question:	How often do these need to applied to outdoor, in the ground, plants
Answer:	I have a full size bed and ordered full/queen and it is perfect. I can’t honestly say what to do for a queen size. Sorry
Question:	What's the fertilizer ratio's of this product
Answer:	AmazonBasics has mutiple curtain sets to match; however, at this point we are working on a pinch pleat curtain set but it will not be available for a while. Thank you for your inquiry!

Milorganite 32 lb. Slow-Release Nitrogen Fertilizer

Milorganite

Based on 523 reviews Check latest price

Product description

Milorganite 32 lb. Slow-Release Nitrogen Fertilizer is good for promoting healthy growth of lawns, trees, shrubs and flowers. The non-burning slow-release nitrogen feeds up to 10 weeks and the iron delivers a long-lasting green. The slow-release formula helps reduce mowing, conserve water, and is non-leaching. Trust the fertilizer that has been proven effective for over 90 years. Use on lawns, trees, shrubs and flowers to promote healthy growth 32 lb. bag covers 2,500 sq. ft. to feed your flowers, lawn or garden from corner to corner Apply granules during the growing season to encourage a rich, green lawn and strong plants Long term lawn care keeps feeding for up to 10 weeks, so you don't have to constantly fertilize Non-burning formula protects vegetation from damage Doesn't contain salts, so it is good for use in drought conditions or areas with water restraints Slow-release fertilizer doesn't need to be watered-in Stays in the root zone, avoiding groundwater or well contamination

Milorganite farminf plant

User questions & answers

Question:	how quick will it green up yard
Answer:	I'm not a seller I bought two pairs myself.
Question:	Just reseeded can I use this
Answer:	No it will be 8 in size.. It doesn't come in 8 wide
Question:	Does it work on centipede grass in SC
Answer:	My dad was so happy for his shoe and size too. I also followed a recommendation of the sneakers and running shoes’ sellers to pick a little bit bigger size than the way someone wear. For instance, if 10,5 is the exact size, they recommend 11 for his comfortable and healthy. So apparently accidentally it worked out for you. Good luck, buddy.
Question:	Is it safe on a fishing lake
Answer:	You tie it.

Maximum Green & Growth- High Nitrogen 28-0-0 NPK- Lawn Food Quality Liquid Fertilizer- Spring & Summer- Any Grass Type- Simple Lawn Solutions, 32 Ounce- Concentrated Quick & Slow Release Formula

Based on 1 reviews Check latest price

Product description

Simple Lawn Solutions: 28-0-0 contains 70% quick release nitrogen to jump start Green & Growth and 30% slow release nitrogen so growth doesn’t drop between applications. Use to enhance Green and Growth or to correct nitrogen deficiency.

Use to maintain lawn health or to treat nutrient deficiencies. Keep your lawn watered sufficiently to ensure nutrients are absorbed properly.

Features and benefits:

· Premium 28-0-0 Liquid Lawn Food Nutritional Supplement

· Intensifies Greening

· Enhances Growth

· High Nitrogen Formula

· 70% Quick Release Nitrogen

· 30% Slow Release Nitrogen

· Contains High Quailty Feed Grade Ingredients

· Great for Every Grass Type

· Covers 3,200 Square Feet

· Made & Manufactured in the USA

· Used Commercially

Just like the Human Body your Lawn needs essential, Balanced Vitamins and Nutrients To Survive and Maintain Health. Read Below about Common Signs and Symptoms of Deficiencies of Nitrogen

28-0-0 Lawn Food is used to maintain Lawn Health or to Treat Lawn Nutrient Deficiencies

Symptoms of a Nitrogen Deficiency:

· Yellowing, especially in older leaves

· Stunted, Very Slow Growth

· Light Pale Green Color

· Poor Density

28-0-0 Liquid Lawn Food Nutritional Supplement: High Nitrogen Formula. Use to stimulate Green & Growth or to treat nutrient deficiency.
The Power of Quick Release and Slow Release Nitrogen: 70% quick release nitrogen to stimulate quick green and growth while 30% slow release nitrogen keeps your lawn feed in between applications.
Contains High Quality Feed Grade Compounds: Nourish your lawn to health with liquid nutrients. Designed to be quickly & easily applied.
All Grass types: Including Bermuda, St. Augustine, Zoysia, Buffalo, Centipede, Florida Palmetto, Bahia, Fescue, Ryegrass & Kentucky Bluegrass
Just like the human body your lawn needs essential vitamins and nutrients to survive and maintain health. Read in Description Sign of Symptoms of Nitrogen Deficiency.

User questions & answers

Question:	Can this be used to treat nitrogen deficient tomato plants? I assume this is systemic, so can the fruit of tomato plants treated with this be consumed
Answer:	Not sure. Did they send you a follow up email on you order?
Question:	Do you apply grass seeds before using this product
Answer:	Typically liquid fertilizers can be mixed with herbicides and other adjuvants. Always reference the specific herbicide label (as well as other adjuvant label) to ensure there are no restrictions and that you have the correct mixing ratios.
Question:	How often should I apply this 28-0-0 to the lawn? Once a month or once a year or every two weeks
Answer:	You can but it is not necessary to add a spray dye.
Question:	How do i contact the seller directly other then here? after my product is delivered there is no link to email anymore. urgent
Answer:	The suggested application rate is 3oz per 1000 sq ft.

RAW Nitrogen (2 oz)

RAW

Based on 282 reviews Check latest price

Product description

Raw nitrogen is a soluble plant supplement that is used for horticultural purposes. Raw nitrogen contains 20% Ammoniacal nitrogen. This raw form of fully water soluble nitrogen does not contain nitrates or Urea which enables it to be applied at all stages to treat deficiencies or boost nitrogen levels. A 2 oz. Package of raw nitrogen makes up to 200 gallon, an 8 oz. Package makes up to 800 gallon & a 2 lb. Package makes up to 3200 gallon. Raw = soluble.

For Horticulture Purposes
Completely Water Soluble
Usable at all stages of development

User questions & answers

Question:	Brown spot in the center of the leave of the pothos what can i do? Kept in medium light all time
Answer:	I’m not really sure but I believe it is
Question:	I have a messy black walnut tree that has an abundance of nuts each year. Will applying this product help with slowing down the nut production
Answer:	Now
Question:	What is the N-P-K ratio
Answer:	Hi - We do not recommend proceeding with that. Thank you.
Question:	Can it be used on fruits and vegetables
Answer:	Yes

Product features

Instantly available

Unlike nitrate nitrogen, ammonium nitrogen isn't instantly available to the plant. It must be processed by bacteria before it can be taken up by the plant. This make it safe to use during flower or even as a foliar spray. When using Nitrogen as a foliar, do so in the evening to avoid nitrogen burn.

RAW = Soluble

Feeding with NPK RAW Solubles is easy! Simply add appropriate proportions to your watering reservoir and stir.

Balance is key

Using too much nitrogen can be just as harmful as not enough as plants will continue to absorb the element even if it doesn't need it. This can cause vulnerability to disease, under developed roots and wasted energy