Effect of soil pH on accumulation of native selenium by Maize (Zea mays var L) grains grown in Uasin Gishu, Trans-Nzoia Kakamega and Kisii counties in Kenya

2015 ◽  
pp. 117-118
Author(s):  
S Otieno ◽  
T Jayne ◽  
M Muyanga
Keyword(s):  
Zea Mays ◽  
Soil Ph ◽  
Native Selenium

Effect of pH, Nitrogen, and Tillage on Weed Control and Corn (Zea mays) Yield

Weed Science ◽  
1980 ◽  
Vol 28 (6) ◽  
pp. 719-722 ◽  
Author(s):  
J. J. Kells ◽  
R. L. Blevins ◽  
C. E. Rieck ◽  
W. M. Muir
Keyword(s):  
Zea Mays ◽  
Weed Control ◽  
Soil Ph ◽  
Soil Surface ◽  
Field Studies ◽  
Conventional Tillage ◽  
Corn Yield ◽  
No Tillage ◽  
Linear Effect ◽  
Surface Soil Ph

Field studies were conducted to determine the effect of soil surface (upper 5 cm) pH and tillage on weed control and corn (Zea maysL.) yield using simazine [2-chloro-4,6-bis-(ethylamino)-s-triazine] as the herbicide for weed control. Soil pH, weed control, and corn yield were examined under no-tillage and conventional tillage systems with and without added lime and different rates of nitrogen. Increased soil pH significantly increased weed control as compared with added lime vs. no added lime, where the surface soil pH influenced the effectiveness of the applied simazine. Soil pH had a greater effect on weed control under no-tillage than under conventional tillage. Conventional tillage significantly (P<.01) increased weed control, yield, and soil pH over no-tillage. Additions of lime as compared to unlimed treatments resulted in significantly increased weed control (83% vs. 63%), yield (5,930 vs. 5,290 kg/ha) and soil pH (5.91 vs. 5.22). The poorest weed control was observed with no-tillage on unlimed plots. A significant tillage by linear effect of nitrogen interaction for all variables resulted from a greater decrease (P<.01) in weed control and soil pH and a greater increase in yield with increased nitrogen under no-tillage than with conventional tillage.

scholarly journals Enhancing the Urea-N Use Efficiency in Maize (Zea mays) Cultivation on Acid Soils Amended with Zeolite and TSP

2008 ◽  
Vol 8 ◽  
pp. 394-399 ◽  
Author(s):  
Osumanu H. Ahmed ◽  
Aminuddin Hussin ◽  
Husni M. H. Ahmad ◽  
Anuar A. Rahim ◽  
Nik Muhamad Abd. Majid
Keyword(s):  
Zea Mays ◽  
Soil Ph ◽  
Dry Matter ◽  
N Uptake ◽  
N Use Efficiency ◽  
Ammonia Loss ◽  
Uptake Efficiency ◽  
N Uptake Efficiency ◽  
Use Efficiency ◽  
N Use

Ammonia loss significantly reduces the urea-N use efficiency in crop production. Efforts to reduce this problem are mostly laboratory oriented. This paper reports the effects of urea amended with triple superphosphate (TSP) and zeolite (Clinoptilolite) on soil pH, nitrate, exchangeable ammonium, dry matter production, N uptake, fresh cob production, and urea-N uptake efficiency in maize (Zea mays) cultivation on an acid soil in actual field conditions. Urea-amended TSP and zeolite treatments and urea only (urea without additives) did not have long-term effect on soil pH and accumulation of soil exchangeable ammonium and nitrate. Treatments with higher amounts of TSP and zeolite significantly increased the dry matter (stem and leaf) production of Swan (test crop). All the treatments had no significant effect on urea-N concentration in the leaf and stem of the test crop. In terms of urea-N uptake in the leaf and stem tissues of Swan, only the treatment with the highest amount of TSP and zeolite significantly increased urea-N uptake in the leaf of the test crop. Irrespective of treatment, fresh cob production was statistically not different. However, all the treatments with additives improved urea-N uptake efficiency compared to urea without additives or amendment. This suggests that urea amended with TSP and zeolite has a potential of reducing ammonia loss from surface-applied urea.

scholarly journals https://doi.org/10.36873/agp.v20

AgriPeat ◽  
2019 ◽  
Vol 20 (02) ◽  
pp. 114-123
Author(s):  
Admin Journal
Keyword(s):  
Zea Mays ◽  
Plant Height ◽  
Soil Ph ◽  
Zea Mays L ◽  
Chicken Manure ◽  
Single Factor ◽  
Acid Sulfate Soil ◽  
Maize Crop ◽  
Optimum Dosage ◽  
Two Factors

ABSTRACTThis research was conducted in the Analitic laboratory of Palangka Raya Univercity and in the screenhouse of Agriculture Cultivation Department, Palangka Raya Univercity. The purpose of thisexperiment was to determine the effect of dolomit and chicken manure to some soil chemicalproperties of acid sulfate soil and growth of Maize Crop (Zea mays L.). The research was arranged inComplete Ramdomized Design with two factors and three replications. The first factors were level ofdolomit with three levels namely 0 ; 1,5 ; 3,0 times exchangeable alumunium. The second factors werelevel of chicken manure with three levels namely 0, 6 and 12 t ha-1. The results showed that theinteraction between dolomit and chicken manure significantly affected increasing the soil pH anddecreasing exchangeable alumunium. The combination level of dolomit in level 1,5 timesexchangeable alumunium with application of 6 ton.ha-1 chicken manure will be optimum increasingthe soil pH and decreasing exchangeable alumunium. The application a single factor of dolomit notsignificantly affected P-availabilityand growth of Zea mays (plant height, number of leaf and area leafindex) in age 2, 3, 4, 5, 6 weeks after planting. The application of chicken manure only significantlyaffected increasing P- availabilityand growth of Zea mays (plant height, number of leaf and area leafindex) in age 2, 3, 4, 5, 6 weeks after planting. Optimum dosage of chicken manure was 6 t ha-1.Keywords: sulfate soil, dolomite, soil chemical, chicken manures.

scholarly journals Contribution of Eelemental Sulfur to Soil Acidification, Fe Release and Uptake by corn (Zea mays L.)

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Mehdi Karimi
Keyword(s):  
Zea Mays ◽  
Soil Ph ◽  
Soil Acidification ◽  
Elemental Sulfur ◽  
Zea Mays L ◽  
Application Rate ◽  
Unit Increase ◽  
Glasshouse Experiment ◽  
Fe Toxicity ◽  
S Application

Abstract—A glasshouse experiment was conducted to elucidate the effectiveness of elemental sulfur as a soil acidulates on solubility of soil Fe and it’s uptake by corn (Zea mays L.). Four rates of elemental sulfur, 0, 0.5, 1 and 2 g S kg-1 soil, incubated for 0, 20 and 40 days before corn plantation. The result showed that with one unit increase in S application rate the soil pH decreased about 1.52 units and the solubility of the Fe was significantly increased. The concentration of Fe in corn leaves and stem were increased with soil acidification from the background of 7.03 to 5.42 due to elemental sulfur application rate of 1 g S kg-1 soil. However, further soil acidification decreased Fe concentration in corn. Overall, application of elemental sulfur at a rate of 0.5 g S kg-1 soil is recommended to enhance corn performance by 45 percent without the risk of Fe toxicity for corn and the minimum Fe export to groundwater. 

Influence of Soil pH ons-Triazine Availability to Plants

Weed Science ◽  
1975 ◽  
Vol 23 (5) ◽  
pp. 378-382 ◽  
Author(s):  
J. A. Best ◽  
J. B. Weber ◽  
T. J. Monaco
Keyword(s):  
Zea Mays ◽  
Glycine Max ◽  
Gossypium Hirsutum ◽  
Soil Ph ◽  
Field Studies ◽  
Silt Loam

Field studies indicated that liming an acid Bladen silt loam from pH 5.5 to 7.5 increased the phytotoxicity of atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] and prometryn [2,4-bis-(isopropylamino)-6-methyoxy-s-triazine]. Liming greatly increased the persistence of atrazine, but did not affect prometryn dissipation. Liming increased the14C-concentration present in the shoots of corn (Zea MaysL. ‘Pioneer 3369A’), cotton (Gossypium hirsutumL. ‘Coker 201’), and soybeans [Glycine Max(L.) Merr. ‘Ransom’] from soil treated with14C-ring labeled atrazine, prometryn, and hydroxyatrazine [2-hydroxy-4-(ethylamino)-6-(isopropylamino)-s-triazine] in greenhouse studies. Decreases in14C-uptake by the crops were associated with adsorption and degradation of the compounds in the soil. Atrazine was taken up in much greater amounts than hydroxyatrazine. Cotton absorbed less of thes-triazines than soybeans or corn from soil.

Effect of pH on Metribuzin Activity in the Soil

Weed Science ◽  
1976 ◽  
Vol 24 (5) ◽  
pp. 505-507 ◽  
Author(s):  
James S. Ladlie ◽  
William F. Meggitt ◽  
Donald Penner
Keyword(s):  
Zea Mays ◽  
Glycine Max ◽  
Grain Yield ◽  
Plant Height ◽  
Soil Ph ◽  
Sand Culture ◽  
Effect Of Ph ◽  
Ph Response ◽  
Crop Injury ◽  
Panicum Dichotomiflorum

Metribuzin [4-amino-6-tert-butyl-3-(methylthio)-as-triazine-5(4H)one] applied preemergence resulted in increased phytotoxicity with increasing soil pH. In the field, fall panicum (Panicum dichotomiflorumMichx.) control, number of dead corn (Zea maysL.) and soybean [Glycine max(L.) Merr.] plants, and crop injury ratings increased, and plant height and grain yield decreased as the soil pH increased. In the greenhouse, corn and soybean grown in soil showed decreased dry weights due to metribuzin as pH increased. By contrast, the pH response to metribuzin was not evident in nutrient-sand culture, indicating that, in soil, pH affected the availability of metribuzin for plant absorption.

Response of Rotational Crops to Soil Residues of Chlorsulfuron

Weed Science ◽  
1986 ◽  
Vol 34 (1) ◽  
pp. 131-136 ◽  
Author(s):  
Mark A. Peterson ◽  
W. Eugene Arnold
Keyword(s):  
Zea Mays ◽  
Glycine Max ◽  
South Dakota ◽  
Sorghum Bicolor ◽  
Helianthus Annuus ◽  
Soil Ph ◽  
Linum Usitatissimum ◽  
Dry Weight ◽  
Grain Sorghum

The response of corn (Zea maysL. ‘Sokota TS 46’), flax (Linum usitatissimumL. ‘Culbert 79’), grain sorghum [Sorghum bicolor(L.) Merr. ‘Sokota 466’), soybeans [Glycine max(L.) Merr. ‘Corsoy 79’], and sunflowers (Helianthus annuusL. ‘Sokata 4000’) to soil residues 12 and 24 months after application of 17, 34, and 68 g ai/ha chlorsulfuron {2-chloro-N-[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl) amino] carbonyl] benzenesulfonamide} was determined at two locations, Redfield and Watertown, in eastern South Dakota. All crops at Redfield were injured significantly at 17 g/ha, 12 months after application as determined by plant dry weight and visual evaluations. Corn and sorghum were the most susceptible while flax was the least susceptible. Injury at Watertown was significantly less than at Redfield. Differences in carryover were related to a lower soil pH at Watertown.

Effect of Soil pH and Tillage on Persistence of Simazine

Weed Science ◽  
1978 ◽  
Vol 26 (2) ◽  
pp. 145-148 ◽  
Author(s):  
C. H. Slack ◽  
R. L. Blevins ◽  
C. E. Rieck
Keyword(s):  
Zea Mays ◽  
Soil Ph ◽  
Avena Sativa ◽  
Field Studies ◽  
Low Ph ◽  
No Tillage

Field studies on the persistence of simazine [2-chloro-4,6-bis(ethylamino)-s-triazine] showed less persistence under no-tillage corn(Zea maysL. ‘Pioneer 3369A’) culture than conventionally tilled corn. Bioassay studies conducted in the greenhouse using oats(Avena sativaL. ‘Compact’) as indicator crop showed the lowest level of simazine remaining in soils of low pH (5.4 and lower). Persistence of simazine in the soil increased with increasing soil pH.

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