Protect potato potential with ‘Bridgeway’
Apr 15, · Managing stress, and mitigating against it where possible, is therefore essential in order to protect yield potential. Stress can come in all shapes and forms, dictated largely by the weather, explains Stuart Sutherland, technical manager at Interagro. “One of the key contributors to potato . Apr 01, · “Because water levels are depleting so dramatically, people are having to dig deeper for groundwater. The water level has dropped by up to 15 metres in some places,” said Morse. He added that given globally 70% of water used for irrigation, the potential impact on agriculture is very worrying.
Avoid throwing food away by carefully inspecting food before purchasing and properly storing it at home. You just bought a bag of potatoes at the grocery store. When you open it at home, at least half the bag of potatoes are starting to turn green. Are the potatoes safe to eat? Find out the answer to this question and learn how to determine how long to keep food in order to keep them safe. The green color of the what is a 1921 peace silver dollar worth is caused by exposure to light.
According to PennState Extensionlight causes the potato to produce chlorophyll and also solanine. Solanine has a bitter taste and is an irritant to the digestive system that can cause paralysis in large quantities. Do not use any green potatoes, trimmed or not, if you are serving children as they have a lower body mass and would be more susceptible to the solanine.
If potatoes have a bitter taste, do not eat them. To prevent potatoes from turning green, store them in a cool, dark space with good air circulation. Michigan State University Extension recommends looking carefully before purchasing at the store and avoid purchasing what is mother tongue influence that already have started to turn green.
It contains useful guidelines about how long you can safely store food. It is also available as a smartphone app for IOS and Android devices. The app keeps this valuable information at your fingertips. Always buy food in quantities that your household can use in a reasonable amount of time and rotate the products in your pantry, refrigerator and freezer.
This article was published by Michigan State University Extension. Is it safe to eat a green potato? Did you find this article useful? Please tell us why Submit. Cooking for Crowds Online Training. Related Content.
Oct 22, · You can find out what other natural remedies are good for gout to help relieve painful inflammation in your joints. Because anthocyanin-rich sweet potato reduces inflammation, you can also add this food to an anti-inflammatory diet.. Purple Sweet Potato May Assist In Weight Loss. If you are trying to lose weight, including purple sweet potato in your diet can help you shed extra pounds of fat. Oct 24, · In a potato, those water-soluble nutrients include B-complex vitamins, vitamin C, potassium and calcium. As much as 80 percent of a potato's vitamin C may go down the drain if . Apr 08, · The second level is yield potential and risk mitigation. Wetter microenvironments tend to produce lower yields (under flat-rate irrigation at least), by nearly 10% on average in this analysis. Lower yield potential, agronomically, implies lower demand for added fertilizer.
This is a condensed version of a more thorough and detailed analysis, involving over a dozen sites between and Sites included irrigated low organic matter sands and sandy loam soils in central Minnesota. The original article was published on LinkedIn here.
It is republished on Potato News Today below with permission and thanks. Soils in central Minnesota can change quite rapidly, sometimes in less than 30 linear feet. High resolution soil mapping using remote sensing techniques, coupled with surface flow modeling and other data sets can accurately, efficiently, economically, and consistently delineate and classify features that affect crop performance. The result of the modeling is a multivariate analysis, or zone map, that has a strong relative relationship to soil moisture, organic matter, exchange capacity, and fertility attributes.
The specific relationship to certain fertility attributes like potassium and manganese can vary with region and soil composition, but the overall relationship to moisture, organic matter and exchange capacity is consistently strong across all regions and soils that have been analyzed.
In order to turn this zone map into something functional, we need to ground-truth the zones. Most often this takes the form of site-specific soil sampling using hand-held GPS devices.
Soil sampling several features of the same color and submitting samples to a soil testing laboratory is a common practice. The results of the analysis are then extrapolated based off the original zone map to create individual maps for each attribute tested. High-density grid sampling has confirmed what these extrapolated maps imply, a very consistent relationship between the zone map and actual soil moisture — go here for more details:.
While mapping soil moisture is important, we often cannot manage water as effectively as we can manage fertility. Therefore, it is important to explore the ways fertility is varying with the landscape, soils and various microenvironments.
Above: This example field is split between irrigated and dryland zones because often times the dryland corners will be planted into rotational crops like soybeans. Note how much potassium levels vary from the driest irrigated yellow zone to the wetter zones blue, purple. Due to the low holding capacity of the driest soils, it is difficult to build potassium and other nutrients , meanwhile the wetter zones have significantly more holding capacity and potassium starts to build in these zones; especially where water movement is impeded.
Below: this field had some of the most extreme concentrations of potassium that this agronomist has scene. These soils were zones sampled the fall before potatoes were planted, which means that this field had not seen significant quantities of applied potash for 3 or more year before the soil samples were collected.
Each dig represents 3. Weight is expressed in grams on the y axis. TEC is total exchange capacity, a function of the soils holding capacity. All of these fields had flat-rate fertilizers applied to them, nothing was variable rate applied before sampling in these examples. Keep in mind that there is often a lot of variability in potato size and sets.
Variables such as seed size, whether seed was cut, seed spacing, planting depth, and variability in starter fertilizer applications can have a significant impact in crop development, especially early on.
Above: weight g of tubers in 3. Red zone was very slow to bulk and stayed behind wetter environments much of the season. The blue zone eventually suffered more soft rot and aerial stem rot, which contributed to lower yields there. While the spring started off dry, by the end of the season, moisture was much less limiting. Above: Zone map with 3D relief model overlay. This is a moderate variability field, but with considerable variability in soil test potassium in just a couple hundred linear feet.
Above: Three consecutive plants pulled from each microenvironment in spring. Note the signs of senescence on the lower leaves in the blue zone. Fungicide could be required in the blue zone up to a week before the red zone requires it, based on canopy coverage, in this particular growing season. Once again, early season drought stress delayed maturity in the red zone, resulting in daughter tubers that were physiologically younger than the tubers in green or blue zones; also smaller sets.
Below: Tuber shape showing some bowling-pin characteristics in the red zone, likely from mid-season drought stress. More conspicuous scab present in the red zones, slight scab pressure in the green zone. Soft rot was present in both the red and blue zones, but more consistent in the blue zones.
Soft rot is often a secondary disorder and requires some initial agent to open the tuber up to infection. In the red zone, soft rot was often associated with an initial rhizoctonia infection.
Rhizoctonia was present in the other zones, but at significantly lower pressure. Due to the more consistently wet soil conditions in the blue zones, soil compaction is more prevalent than in other zones, this can lead to tuber shape being contorted and less uniform. Site-specific zone fertility management of potatoes in central MN is justified agronomically on several levels. The first level is base soil fertility, which can vary significantly even in short distances.
The second level is yield potential and risk mitigation. Lower yield potential, agronomically, implies lower demand for added fertilizer. There is also a higher risk of flood stress and storage issues in the wetter zones. The third level is specific gravity, which is consistently lower in the wetter microenvironments albeit, not by a very wide margin, but the trend is consistent nonetheless ; it is well known that excessive K, N and salts can contribute to lower gravities and these tend to be higher in wet zones.
Conversely, the opposite tends to be the case with the dry zones. However, in this analysis, the driest zones were only slightly higher yielding than the field average green zones. Worth noting, however, that the dry zones tend to produce a higher percentage of larger tubers than the field average and wet zones. Specific gravities in the dry zones tend to be highest, but not by a large margin.
Another level that may justify site-specific fertility management is marketability. Increasingly, customers are putting pressure on industry to produce food more sustainably, even to the extent that growers who adopt sustainability practices may enjoy financial incentives, such as premiums paid on their crop. Even without premiums, a sustainable producer may have a competitive edge in marketing their product compared to conventional producers. Finally, there is considerable evidence that site-specific management of irrigation, seeding rates, and crop protectant products may be justified in this crop.
Zone Map Overlaid on 3D Relief Model: Generally, red zones are low organic matter, shed water, low exchange capacity, and low base fertility. Purple zones represent the cooler, wetter, heavier and more fertile soil zones. Lockwood Mfg. FAM Stumabo. Search Global Potato News.
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