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library:articles:gypsum: 30 Hits
wn as sheet rock or drywall). A few locations may have access to byproduct phosphogypsum from the production of P fertilizer, and some locations may have access to byproduct gypsum sources related to othe... rea. Please note that the descriptions in table 1 have been edited by Spectrum Analytic, Inc to clarify
library:articles:p_basics: 18 Hits
slows P diffusion to the roots. These soils also have less particle surface area and it appears that cu... for equivalent P supplying power. Some clay types have a high P fixation capacity. These types of clay a... aeration, and the availability of other nutrients have a direct bearing on the level of microbial activi
library:articles:is_magnesium_a_hidden_problem_in_your_area: 18 Hits
the Southeast part of the State was long known to have Mg problems, but that other areas now appear to b... r. Tracy points out that many livestock producers have the philosophy that low Mg in forage is not a con... extent K. The major nutrient cations occasionally have other, less significant competitors. For a short
library:articles:soil_test_p_and_k_buildup_and_drawdown: 17 Hits
t. The soil is a reservoir for the nutrients that have been applied or generated by other means over the... gets in any one season are likely to be ones that have been in the soil for many years. Therefore you ca... ith weather, determine how much access the plants have to the nutrients within the reservoir. ===== S
library:articles:n_basics: 14 Hits
ometimes in the ratio of N to other elements, can have a negative impact on some aspects of various yiel... nisms are bacteria and other microorganisms which have short life spans. As they die, they contribute to... elds since the adoption of tillage practices that have greatly reduced erosion in most fields. Denit
library:articles:fertilizer_lime_calculations: 13 Hits
on, and to help explain proper fertilizer use, we have provided the following information. ===== What i... However, the majority of fertilizer products will have a 3 number identification, such as 5-10-5, 12-12-... sub>2O5 and K2O). You have to determine how much of a particular fertilizer
library:articles:ca_basics: 12 Hits
ls are derived from limestone bedrock, many soils have higher levels of Ca, and a higher pH in the subsoil. * **Soil pH:** Acid soils have less Ca, and high pH soils normally have more. As the soil pH ... one, marl, or other high Ca minerals will tend to have high Ca levels, while those derived from shale or
library:articles:soybean_cyst_nematodes: 12 Hits
Soybean cyst nematodes (Heterodera //glycines//) have been an increasing problem for soybean producers ... f higher plants, more than 1100 species of plants have been found to serve as hosts. Fortunately, most a... non-host crops. Severe infestations of SCN can have a devastating effect on yields. Yield losses can
library:articles:why_labs_have_different_soil_test_results: 12 Hits
====== Why Labs Have Different Soil Test Results and Recommendations====== {{tag>Bray_P1 Bray_P2 differ... nutrients in a soil test. A number of agronomists have developed mathematical formulas for converting th... . When the agronomists at a lab believe that they have discovered a way to include some of these other f
library:articles:soil_aluminum_and_test_interpretation: 10 Hits
or either plants or animals. Most plant producers have heard that too much aluminum (Al) can be harmful ... e forms of Al in the soil and multiple tests that have been used to identify these different forms. Only... eir crops or other plants. Of course, when plants have damaged root systems, many other above-ground sym
library:articles:presidedress_nitrate_nitrogen_test_university_summary: 10 Hits
N available where manure or other organic wastes have been applied, or corn is grown in rotation with a... on the test results. In other words, agronomists have been asked to make N recommendations that are adj... hipment. Over the years, a number of customers have reminded us that sometimes you cannot push a samp
library:articles:potassium_basics: 10 Hits
mproves. **Soil Salinity:** Saline soils often have excess sodium (Na). One of the negative effects o... ing the uptake of Mg. However, some Midwest soils have enough Mg to reduce K availability, especially to... educe uptake of K. Strongly acid soils will often have an excess of hydrogen (H), aluminum (Al), iron (F
library:articles:mg_basics: 9 Hits
g. However, if a high CEC soil does not happen to have strong levels of Mg, it will tend to release less... with Mg than it is sometimes considered to be. We have frequently seen that whenever the soil K level is... alances and Ratios===== For many years, there have been a few people who claim that there is an "Ide
library:articles:salt_index_calculation: 9 Hits
containing potassium phosphate as the source of K have lower SI values than those containing KCI. When a... s over the years, it has become more difficult to have enough room to include the coulters required to o... low and to the side of the seed row. Some growers have quit applying starters because of this limitation