• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Fanal Astilbe - Tagawa Gardens
Fanal Astilbe - Tagawa Gardens

... in front. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years. ...
Document
Document

... the ocean and fresh water, in compost piles (even at temperatures over 130°F), and in soils. Although some kinds of bacteria live in flooded soils without oxygen, most require wellaerated soils. In general, bacteria tend to do better in neutral pH soils than in acid soils. In addition to being among ...
Drought Resistant Natives For Central Texas
Drought Resistant Natives For Central Texas

... [ ask attendees what their interests are or why they hope to learn ] Low maintenance … Low water consumption etc. ...
Document
Document

... ocean and fresh water, in compost piles (even at temperatures over 130°F), and in soils. Although some kinds of bacteria live in flooded soils without oxygen, most require well-aerated soils. In general, bacteria tend to do better in neutral pH soils than in acid soils. In addition to being among th ...
The structure of the rainforest
The structure of the rainforest

... The hot and wet climate of the tropical rainforest creates perfect conditions for the growth of plants. Most of the trees are hardwoods with names like, Mahogany, Teak and Rosewood. These trees are excellent for making furniture and are highly sought after because of this. Because there are no seaso ...
Endless Summer® hydrangeas
Endless Summer® hydrangeas

... The reason is the Endless Summer Collection® of garden hydrangeas. When the first variety was introduced in 2004, it revolutionized the gardening world because it bloomed over and over through the growing season unlike most mophead hydrangeas that only bloom once. Endless Summer® is the true rebloom ...
Native Tree and Shrub List
Native Tree and Shrub List

... climate of wet winters and dry summers. Lack of summer rains is the limiting factor for plant growth in our area. After an initial one to two seasons of watering, many native species become established and require little or no irrigation. Native plants have developed ways to respond to naturally occ ...
Bone Meal - WSU Puyallup - Washington State University
Bone Meal - WSU Puyallup - Washington State University

... Bone meal is primarily calcium and phosphorus, two elements which are usually adequate in nonagricultural soils. The NPK analyses of bone meal preparations vary, but are generally in the range of 012-0 to 3-20-0. Both calcium and phosphorus are required for plant growth, but both (and especially pho ...
Woody Plants Database
Woody Plants Database

... Woody Plants Database [http://woodyplants.cals.cornell.edu] ...
Pohjola`s Daughter Rhododendron
Pohjola`s Daughter Rhododendron

... This is a relatively low maintenance shrub, and should only be pruned after flowering to avoid removing any of the current season's flowers. It has no significant negative characteristics. Pohjola's Daughter Rhododendron is recommended for the following landscape applications; - Mass Planting - Gene ...
PDF - Woody Plants Database
PDF - Woody Plants Database

... bronze purple in fall; fragrant yellow flowers open in March; grape-like fruit ripen in summer Moisture Tolerance: Consistently moist, well-drained soil; Occasional periods of dry soil See graphic below ...
Easy Gardening - Aggie Horticulture
Easy Gardening - Aggie Horticulture

... and the odor gets strong. If left long enough, the stem will naturally separate from the fruit. This is called “full slip.” Fruit at this stage should be used within 36 to 48 hours as it will spoil soon. For better quality, harvest fruits at the “half slip” stage when the stem is ...
Woody Plants Database - Rhododendron yakushimanum
Woody Plants Database - Rhododendron yakushimanum

... Light: Part shade ...
here - Fairbanks Soil and Water Conservation District
here - Fairbanks Soil and Water Conservation District

... fertilizer will improve yields as well (a generic recommendation is: Fertilize early with a balanced fertilizer and again with high Nitrogen fertilizer early bloom at 1 pound per 100 square feet. For more specific recommendations, test your soil!) ...
Hydrology Slideshow - Hō`ike o Haleakalā Curriculum
Hydrology Slideshow - Hō`ike o Haleakalā Curriculum

... Effects of Miconia on Hydrology ...
1998 operation arbor green
1998 operation arbor green

... Conifers: AUSTRIAN PINE A very hardy tree that withstands city conditions better than many other pines. It is generally tolerant of most soils and if it has adequate moisture will succeed in fairly heavy clay and alkaline soils. Has a lustrous dark green color while the bark is dark brown with gray ...
THE ROSEDALE PLANTSMAN`S GUIDE TO PLANTING AND
THE ROSEDALE PLANTSMAN`S GUIDE TO PLANTING AND

... Baltic Ivy (Hedera helix and H. h. Baltica). Because groundcover plants grow closely together, they help exclude weeds and other plants through competition, but also require good soil preparation, adequate water, and annual fertilizing for best results. Site Conditions: In general, the Groundcovers ...
Winter Seed Sowing Class Draft
Winter Seed Sowing Class Draft

... smaller seeds should just be pressed onto the surface of the soil for good seed-tosoil contact. Larger sees can be pushed in with a pencil (eraser end) to a depth of 12 times their thickness. Cover thinly with sand or light soil mix. You will discover in time which methods work best for you. Primros ...
Green Guide to Clean Water for Residents
Green Guide to Clean Water for Residents

... Cut grass at 2½ to 3 inches tall. Mow often enough so that clippings are not longer than one-third (1/3) of the grass blade, so they can decompose easily into the soil. ...
class handout - Richmond Grows Seed Lending Library
class handout - Richmond Grows Seed Lending Library

... plants you are growing, what stage of their life they are at (how big they are), what your soil is like, how hot or windy it has been, when and how much water they got recently. 2. It is worth the effort to do a little research on the crops you want to grow before you plant them in the ground so tha ...
PDF view - Woody Plants Database
PDF view - Woody Plants Database

... Soil Ph: Can tolerate acid to alkaline soil (pH 5.0 to 8.0) ...
Hydrangeas - Hunters Garden Centre
Hydrangeas - Hunters Garden Centre

... The colour of most mop heads and lace caps can be changed to be anything from pink to blue. Altering the soil around your hydrangea will facilitate this change. Flower colour is determined by the plant’s access to aluminum sulfate in the soil. If the soil is too basic the calcium in the soil will bi ...
Beyond Daffodils - Quintessential Barrington
Beyond Daffodils - Quintessential Barrington

... whorled foliage will enlarge and become an at- ...
UNIT ONE: PLANTS (1) I. READING AND COMPREHENSION A
UNIT ONE: PLANTS (1) I. READING AND COMPREHENSION A

... stage is germination. Seeds remain dormant, or in a resting state, is they are kept cool and dry. When the amount of moisture and the temperature level are right, the seeds germinate and start growing. 7 Certain conditions are necessary for this to happen. An essential condition is that the seeds mu ...
Agriculture Terms
Agriculture Terms

... plant for sunlight, water and nutrients. There are many types of herbicides, the choice of which depends on the type of plant teh farmer wants to control. Herbicides are available in both organic and synthetic forms. Hybrid: Hybrid seeds are created by traditionally breeding two different plants to ...
< 1 ... 12 13 14 15 16 17 18 19 20 ... 25 >

Base-cation saturation ratio

Base-cation saturation ratio (BCSR) is a method of interpreting soil test results that is widely used in sustainable agriculture, supported by the National Sustainable Agriculture Information Service (ATTRA) and claimed to be successfully in use on over a million acres (4,000 km²) of farmland worldwide. The traditional method, as used by most university laboratories, is known variously as the 'sufficiency level', sufficiency level of available nutrients (SLAN), or Index(UK) system. The sufficiency level system is concerned only with keeping plant-available nutrient levels within a well studied range, making sure there is neither a deficiency nor an excess. In the BCSR system, soil cations are balanced according to varying ratios often stated as giving 'ideal' or 'balanced' soil. These ratios can be between individual cations, such as the calcium to magnesium ratio, or they may be expressed as a percentage saturation of the cation exchange capacity (CEC) of the soil. Most 'ideal soil' theories stress both approaches. (See also – Cation exchange capacity)Strictly speaking, the 'base' cations are limited to calcium, magnesium, potassium, and sodium, and these are the primary nutrients that BCSR methods are most concerned with balancing. However, many proponents of 'ideal soil' theories also stress the importance of balancing the anions phosphorus, sulphur and chlorine as well as numerous minor and trace elements. The conventional SLAN system does not generally test for minor and trace elements unless there is sufficient cause to suspect a deficiency or toxicity.BCSR supporters argue that a soil balanced using their methods leads to greater crop yield and nutritional quality, as well as increasing the soil biological activity and the physical properties of tilth, aeration, and moisture retention. There is currently no publicly available research or trial data to support these claims, but BCSR systems are fairly widely used in organic farms and many positive testimonials from farmers and gardeners can be found on the internet and in alternative agriculture literature. Under most circumstances following BCSR systems will not lead to negative effects. The main concern for farmers is simply the unnecessary expense of applying soil amendments beyond what the crop can actually utilise.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report