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Wheat Diseases and Pests - Wheat Doctor - CIMMYT

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Mineral <strong>and</strong><br />

Environmental Stresses<br />

Poor plant growth often can be attributed to<br />

inadequate levels of essential plant nutrients.<br />

Nitrogen, phosphorous, <strong>and</strong> potassium are used by<br />

the plant in relatively large amounts, <strong>and</strong> therefore<br />

are the nutrients that are most commonly<br />

deficient. However, micronutrient deficiencies can<br />

occur as well. Many minerals in the soil, including<br />

those essential to the plant, can be toxic if the<br />

amount freely available in the soil is too high. The<br />

buildup of salts in the soil, insufficient water,<br />

extreme temperatures, <strong>and</strong> poor application of<br />

pesticides also can affect the growth <strong>and</strong> yield of<br />

a crop.

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