Soil pollution is mostly caused by mindless human activities such as:

Soil is made up of mineral particles, organic matter (living and non-living), water and air.

Collectively, soil microorganisms play an essential role in decomposing organic matter, cycling nutrients and fertilising the soil. Soil microbes are of prime importance in this process. Soil microbes are also important for the development of healthy soil structure.

• Industrial waste.
• Deforestation.
• Excessive use of fertilisers and pesticides.
• Garbage pollution.
• Climate change.
• Loss of soil fertility.
• Impact on human health.
• Reforestation.

Summary. Microorganisms abound in the soil and are critical to decomposing organic residues and recycling soil nutrients. Bacteria are the smallest and most hardy microbe in the soil and can survive under harsh conditions like tillage.

Soil is a major source of nutrients needed by plants for growth. The three main nutrients are nitrogen (N), phosphorus (P) and potassium (K). Together they make up the trio known as NPK. Other important nutrients are calcium, magnesium and sulfur.

Plants need five things in order to grow: sunlight, proper temperature, moisture, air, and nutrients. These five things are provided by the natural or artificial environments where the plants live.

10 Secret Ingredients to Make Your Garden Grow

1. Wood Ash. 1/11. Wood ash has a high alkaline content, which makes it great for neutralizing acidic soil.
2. Bananas. 2/11.
3. Compost Tea. 3/11.
4. Club Soda. 4/11.
5. Aquarium Water. 5/11.
6. Coffee Grounds. 6/11.
7. Eggshells. 7/11.
8. Tea Leaves. 8/11.

Soil

Among the micronutrients, Fe, Mn, Cu, Zn, and Ni are taken up by plants in their cationic forms, and B, Mo, and Cl are taken up by plants in their anionic forms. Fe and Mn are often present in large quantities in most soils, and adsorption reactions play little role in controlling their plant availability in soils.

Carbon, hydrogen and oxygen are the basic nutrients plants receive from air and water. Justus von Liebig proved in 1840 that plants needed nitrogen, potassium and phosphorus. Liebig’s law of the minimum states that a plant’s growth is limited by nutrient deficiency.

Plants need minerals for healthy growth. They are absorbed through the roots by active transport as mineral ions dissolved in the soil water….Magnesium and nitrate.

Answer. Chickweed grows in fertile soil. Chickweed plant prefers soils with extraordinary fertility and thrives in nitrogen-rich moist soils.

Plant roots absorb mineral salts including nitrates needed for healthy growth. For healthy growth plants need mineral ions including: – Nitrate for producing amino acids which are then used to form proteins. – Magnesium which is needed for chlorophyll production.

Unhealthy roots can often be caused by over or underwatering, improper usage of fertilizer, and too much competition between roots. When you overwater a plant, you cause the soil to fill with water and reduce the likelihood of sufficient oxygen being absorbed.

Ensure root growth is stimulated by proper growing temperatures. Set the thermostat of a seedling heat mat at a moderately warm temperature, between 65 and 72 degrees Fahrenheit, and keep the mat on a timer to simulate daytime and nighttime temperature fluctuations, which will encourage roots to develop properly.

Phosphorus and potassium are the two main nutrients that support root growth in plants. Specifically, they encourage plants to put down a dense collection of new roots and strengthen existing roots as they develop.

There are four primary factors that affect plant growth: light, water, temperature and nutrients. These four elements affect the plant’s growth hormones, making the plant grow more quickly or more slowly. Changing any of the four can cause the plant stress which stunts or changes growth, or improves growth.

Environmental factors affect range plant growth. The three most ecologically important environmental factors affecting rangeland plant growth are light, temperature, and water (precipitation). Plant growth and development are controlled by internal regulators that are modified according to environmental conditions.

To get a better idea of how they affect a firm’s marketing activities, let’s look at each of the five areas of the external environment.

• The Political and Regulatory Environment.
• The Economic Environment.
• The Competitive Environment.
• The Technological Environment.
• The Social and Cultural Environment.

Plant phenology, the timing of plant growth and development, is changing in response to global climate change. Changing temperature, soil moisture, nitrogen availability, light, and elevated CO2 are all likely to affect plant phenology.

Phenology is nature’s calendar—when cherry trees bloom, when a robin builds its nest and when leaves turn color in the fall. Phenology is a key component of life on earth. Changes in phenological events like flowering and animal migration are among the most sensitive biological responses to climate change.

The two factors on which the growth of vegetation mostly depends are— temperature and moisture.

Phenology is the study of changes in the timing of seasonal events such as budburst, flowering, dormancy, migration and hibernation. Changes in flowering have implications for the timing and intensity of the pollen season; this is showing an advancing trend as many species start to flower earlier.

Examples include the date of emergence of leaves and flowers, the first flight of butterflies, the first appearance of migratory birds, the date of leaf colouring and fall in deciduous trees, the dates of egg-laying of birds and amphibia, or the timing of the developmental cycles of temperate-zone honey bee colonies.

A precisely defined point in the life cycle of a plant or animal, generally marking the start or end point of a phenophase. The occurrence of a phenological event can be pinpointed to a single date and time (in theory, if not in practice).

Bud burst refers to the period in early spring during which grapevines, which have been dormant through the winter, first begin to produce new shoots. During the bud burst phase, the vines are quite susceptible to frost damage.