{"id":3069,"date":"2016-07-06T13:15:46","date_gmt":"2016-07-06T17:15:46","guid":{"rendered":"http:\/\/www.localhost:10003\/?p=3069"},"modified":"2016-07-06T13:15:46","modified_gmt":"2016-07-06T17:15:46","slug":"3069-2","status":"publish","type":"post","link":"https:\/\/montysplantfood.com\/ar\/3069-2\/","title":{"rendered":"Tips for diagnosing nutrient deficiencies"},"content":{"rendered":"

June 22, 2016\u00a0| Posted in\u00a0Nutrient Management<\/a><\/span><\/p>\n

Source:\u00a0Penn State Extension<\/a><\/span><\/p>\n

By Douglas Beegle, Agronomist<\/strong><\/p>\n

Here are some things to keep in mind when looking at potential nutrient deficiencies. Generally, if you contact someone for help or look up the symptoms, these are things you\u2019re going to need to know.<\/span><\/p>\n

First, look for patterns in the field that might be related to management operations or soil conditions<\/u>. Nutrient deficiencies are rarely uniform over the field \u2014 they will usually show up first in distinct areas of a field. For example some hybrids might have a striped pattern on the leaves, which might be mistaken for magnesium deficiency. However, if every leaf on the plant and every plant in the field shows this pattern, it is probably not a nutrient deficiency, but rather a hybrid characteristic.<\/span><\/p>\n

Knowing the deficiency is only half of the problem\u2014 the other part is knowing why you have the problem<\/u>. For example, a potassium (K) deficiency can be due to low soil K, but is also a common deficiency caused by compaction. If the deficiency is due to low soil K, adding more K should solve the problem, but if the problem is due to compaction, adding more soil K may not help. For example, a pattern that seems to follow tire tracks in the wetter areas of a field would be a strong indication of a compaction problem.<\/span><\/p>\n

Look for the position of the symptoms on the plant<\/u>. Some nutrients are mobile in the plant and thus symptoms appear first on older leaves and move up the plant as the deficiency gets worse<\/u>. Nitrogen (N), phosphorus (P), K, and magnesium are in this group. Other nutrients are immobile in the plant and symptoms will show up on the new growth when the plant becomes deficient.\u00a0<\/span><\/p>\n

Two examples where this is very useful for making a correct diagnosis are magnesium and zinc, and N and sulfur. Both magnesium and zinc show up as a striping on the leaves<\/u>, but magnesium deficiency will show up on leaves on the bottom of the plant<\/u>, while zinc will show up on leaves on the top of the plant<\/u>. Also, in this case, the magnesium striping is usually very uniform and crisp, whereas the zinc stripes are often rough, starting as short strips that get longer and tend to run together as the deficiency gets worse.<\/span><\/p>\n

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Sulfur and N both show up initially as pale green or yellowing on the leaves<\/u>. The main distinction is that N deficiency will show up on the lower leaves<\/u> and sulfur will be at the top of the plant<\/u>. As the deficiency gets worse, N deficiency will become an inverted yellow \u201cV\u201d starting at the tip of the leaf and going back the middle of the leaf. As sulfur deficiency worsens, the top of the plant will turn yellow and there may be some striping on the top leaves as the deficiency progresses.<\/span><\/p>\n

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\"story<\/span><\/p>\n

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A K deficiency<\/u> is the other fairly common deficiency. Because K is mobile in the plant, the symptoms will be on the bottom leaves of the plant and will show up as yellowing on the edge of the leaf<\/u>.<\/span><\/p>\n

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Plant analysis is an excellent tool<\/u> for diagnosing nutrient deficiencies. When using plant analysis to diagnose visible nutrient deficiency problems, the best approach is to take comparative samples. With this method two samples are taken for analysis. One sample is taken from the problem area and the second sample is taken from a nearby area<\/u> that is as near to identical to the problem area as possible, but is showing normal growth. This method can be used at any stage of growth and it eliminates the confounding effects of most of the cultural and environmental factors.\u00a0<\/span><\/p>\n

When using this method, the two samples must be taken at the same time and the same plant part must be sampled. Usually the newest fully developed leaves or stems are the best plant part to sample for this method. If the problem is nutritional, comparison of the nutrient levels in the two samples usually gives a direct indication of the problem.\u00a0<\/span><\/p>\n

Taking soil samples to go with these two plant samples can further help identify the problem<\/u>. If the plant samples show a nutrient deficiency in the problem area and the soil test shows the same thing, it is clear that the soil is deficient and adding that nutrient should help. However, if the plant samples show a nutrient deficiency in the problem area but the soil samples do not, this indicates that something else is limiting the ability of the plant to get the available nutrient, and thus adding more of that nutrient, without addressing the underlying problem, will not help.\u00a0<\/span><\/p>\n

When using plant analysis, it is critical that sampling instructions from the lab are followed exactly. Nutrient levels in plants can vary a lot with stage of growth and plant part sampled and results from incorrect samples can be very misleading. Click here<\/a> to see original article.\u00a0<\/span><\/p>\n

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Comments by Joe Dedman VP of Agronomy Monty\u2019s Plant Food Co.:<\/span><\/strong><\/p>\n

These tips are great for managing a crop and the inputs required to grow maximum yield.\u00a0 This is another reason that Monty\u2019s Microhance<\/u> is a superior product to use when you are spraying over your crop for any reason.\u00a0 All of Monty\u2019s products are designed to provide solutions to issues that crops encounter during each growing season.\u00a0 <\/em><\/span><\/p>\n

STRESS is the big yield robber in all crops and can happen anytime during the growing season, and is often produced by a lack of a nutrient, causing a deficiency.\u00a0 Monty\u2019s Products have been produced for this specific reason, to provide farmers \u201ctools\u201d for them to address their crops need to either prevent stress (best solution) or rescue their crops from stress.\u00a0 <\/em><\/span><\/p>\n

The further the crop is along in stage development, the more critical the stress will be on the yield potential of the crop. Monty\u2019s in the row starter AGRIHANCE S product is one that provides tremendous advantage in leap starting the seedling and improve soil conditions around the seedling and early root development.<\/em><\/span><\/p>\n

Once the crop is started, in order to maintain excellent plant development and the highest yield potential, then Monty\u2019s has premium foliar plant food products including an excellent micronutrient package called MICROHANCE to provide plants need micro nutrients necessary to maintain growth and stage development. Among other excellent product like K 28 potassium, Sulfur 15, AGRIHANCE V, and Crop Pro a superior microbial product developed for the soil\u2019s biological stimulation and foliar applied for the activation of the plant\u2019s defense signals increasing its health mechanism against diseases.\u00a0<\/em><\/span><\/p>\n

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 <\/p>","protected":false},"excerpt":{"rendered":"

June 22, 2016\u00a0| Posted in\u00a0Nutrient Management Source:\u00a0Penn State Extension By Douglas Beegle, Agronomist Here are some things to keep in mind when looking at potential nutrient deficiencies. Generally, if you contact someone for help or look up the symptoms, these are things you\u2019re going to need to know. First, look for patterns in the field…<\/p>","protected":false},"author":20,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[31],"tags":[],"class_list":["post-3069","post","type-post","status-publish","format-standard","hentry","category-montys-blog"],"acf":[],"yoast_head":"\nTips for diagnosing nutrient deficiencies - Monty's Plant Food<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/montysplantfood.com\/ar\/3069-2\/\" \/>\n<meta property=\"og:locale\" content=\"ar_AR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tips for diagnosing nutrient deficiencies - Monty's Plant Food\" \/>\n<meta property=\"og:description\" content=\"June 22, 2016\u00a0| Posted in\u00a0Nutrient Management Source:\u00a0Penn State Extension By Douglas Beegle, Agronomist Here are some things to keep in mind when looking at potential nutrient deficiencies. 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