Understanding Soil Nutrients

Article by: Michael Russell

"Complete fertilizers" contain all three macronutrients - nitrogen (N), phosphorous (P), and potassium (K) - but don't let the name "complete" fool you. It doesn't mean that the fertilizer has all the nutrients that plants , Catch a Leprechaun in Your Garden need, just that it contains all three of the major ones.

Bags of complete fertilizers contain three numbers, such as 5-3-3, for example. Each number represents a percentage of N-P-K in that bag, as measured by weight. In this case, a bag of 5-3-3 fertilizer contains 5 percent nitrogen, 3 percent phosphorous, and 3 percent potassium. To determine the amount in pounds of each nutrient in the bag, multiply the weight of the bag (say 50 pounds) by the percentage of each nutrient: 50 pounds x .05 = 2.5 pounds of nitrogen. You need to know the actual amount of nutrients in the bag because a soil , An Introduction To Vinyl Fences test often recommends pounds of actual N-P-K to add per square foot of your garden. , Your Dream

Each of these three nutrients plays a critical role in plant , Tips On Growing And Caring For Orchids growth and development. Here's what they do and their deficiency symptoms to watch for.

Nitrogen (N): This critical element is responsible for the healthy , Learn About Herb Gardening - Get the Natural Facts! green foliage of the plants, , Oregano: Joy of the Mountain as well as protein and chlorophyll development. Chlorophyll is the pigment that makes plants , Hydroponics in Your Garden green and is a vital component in photosynthesis. Nitrogen moves easily in the soil , Landscaping Your Patio and leaches out rapidly, especially from sandy soils , Stressed Out? Maybe You Need a Gazebo and in high rainfall areas or irrigated gardens. , Hydroponics in Your Plants , Fuchsia procumbens use lots of nitrogen during the growing season, , Some Practical Ideas For Designing Your Own Landscape so it's commonly the most deficient element. If you add too much nitrogen, however, plants , Spring Gardening Tips will have dark green, , I Was Asked if I Had Any Stepping Stone Molds leafy growth but less root , Hydroponics in Your Garden development and delayed flowering , Finding the Right Landscaping Company and fruiting. Symptoms of nitrogen deficiency include slow growth and yellowing leaves, especially on older foliage. Animal manures, soybean meal, and cottonseed meal provide high levels of nitrogen.

Phosphorous (P): Plants , Common Landscaping Tools For Every Landscaper need phosphorous for strong root , Handcrafted Garden Bridges Builds Traditional Arched Span Bridges with Modern Flair growth; fruit, , Finding the Right Landscaping Company stem and seed , Wood Sheds development; disease , Learn About Herb Gardening - Get the Natural Facts! resistance; and general plant , Hydroponics in Your Garden vigor. Phosphorous doesn't move in the soil , Palm Trees as easily as nitrogen does so you don't have to add it as frequently. Depending on where you live in the country, your soil , Oregano: Joy of the Mountain may have plenty of phosphorous, but it may be unavailable to plants. , Spring Gardening Tips Phosphorous availability depends on warm soil , 6 Indoor Plants That Love The Dark: A Tip From The Garden Center Nursery temperatures, pH range, and the levels of other nutrients, such as calcium and potassium, in the soil. , Pest Control and Mosquito Larva Deficiency symptoms include stunted plants , Tips On Growing And Caring For Orchids with dark green , Growing Roses - The Guide for Fans of Roses foliage, reddish-purple stems or leaves, and fruits , Common Landscaping Tools For Every Landscaper that drop early. Rock phosphate and bone meal are good sources of phosphorous.

Potassium (K): This nutrient, sometimes called potash, is essential for vigorous growth, disease , A Guide To Landscape Bridges resistance, fruit , Fuchsia procumbens and vegetable , Deer Ticks flavor and development, and general plant , 6 Indoor s That Love The Dark: A Tip From The Garden Center Nursery function. Potassium breaks down slowly so you won't have to add it often. Deficiency symptoms include yellow areas along the leaf veins and leaf edges, crinkled and rolled-up leaves, and dead twigs. Fruit trees , Healing Aloe Vera Plants Are Easy To Grow and Provide Health Benefits may develop fruit , Plastic & Resin Patio Furniture – What You Don’t Know with poor flavor or stunted fruits. , Pest Control and Mosquito Larva Certain animal manures and mineral fertilizers, such as greensand, add potassium to the soil. , Artificial Trees Advantages

Michael Russell

Your Independent guide to Gardening

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Understanding Soil Nutrients

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