In this case, complete replacement probably causes nutritional deficiency because of an imbalance of nutrients.
Although, direct irrigation has the lowest operational cost, there is potential for leaching of nutrients into the soil over a long period of time, which could lead to an imbalance of nutrients for plant uptake (Palaniappan 1993).
However, long-term exceedances of the critical N input rate can lead to an imbalance of nutrients and to changes in the species composition in sensitive ecosystems [4, 6, 17, 21, 22].
The 1992 study actually found the maximum safe dietary Se intake to be approximately 800 micrograms per day (15 micrograms per kilogram body weight), but suggested 400 micrograms per day to not only avoid toxicity, but also to avoid creating an imbalance of nutrients in the diet and to account for data from other countries.
An imbalance of nutrients, energy, and oxygen supply-and-demand in muscle cells is evident following cardiac muscle or skeletal muscle attack, injury, or damage.
The increasing prevalence of metabolic diseases and obesity in children is most often attributed to a combination of an energy conserving, or 'thrifty' genotype, with a prevalent imbalance of nutrient intake and expenditure in the developed world.
Angiogenesis is essential for tumor growth and survival due to the imbalance of nutrient and oxygen supplies to solid tumors larger than 1 mm, resulting in tumor hypoxia [ 56].
Similar symptoms are produced by an excess of water, an imbalance of essential nutrients, an excess of soluble salts, changes in the soil water table or soil grade, gas or fume injury, and root injury or disease.
Several nonparasitic diseases (e.g., oat blast, weakneck of sorghum, straighthead of rice, and crazy-top of cotton) are caused by combinations of environmental factors e.g., high temperatures, moisture stress or poor irrigation practices, imbalance of mineral nutrients, and reduced light.
Stunting may be caused by viral, bacterial, fungal, or nematode (eelworm) infections and by noninfectious (abiotic) means including an excess or lack of water, imbalance of soil nutrients, excess light, chemical or mechanical injuries, insect or mite feeding, and too-deep planting.
Unfavourable conditions include hot, dry wind in full sun, an imbalance of soil nutrients, altered water table or soil grade, deep planting, compacted shallow soil, paved surface over roots, salt drift near the ocean, low temperatures, air pollutants, and girdling roots.
