Corn and Soybean Tissue Potassium Content Responses to Potassium Fertilization and Relationships with Grain Yield

2013 ◽  
Vol 77 (2) ◽  
pp. 630-642 ◽  
Author(s):  
Matthew W. Clover ◽  
Antonio P. Mallarino
Keyword(s):  
Grain Yield ◽  
Potassium Content ◽  
Potassium Fertilization ◽  
Soybean Tissue

scholarly journals Response of wheat cultivars to foliar potassium fertilization under irrigated saline environment

2016 ◽  
Vol 8 (1) ◽  
pp. 429-436 ◽  
Author(s):  
M. Kumar ◽  
A. Sarangi ◽  
D. K. Singh ◽  
A.R. Rao ◽  
S. Sudhishri
Keyword(s):  
Grain Yield ◽  
Foliar Application ◽  
Wheat Cultivars ◽  
Salt Tolerant ◽  
Saline Irrigation ◽  
Irrigation Regimes ◽  
Potassium Fertilization ◽  
Yield Difference ◽  
Significant Yield ◽  
Heading Stage

A field experiment with split-split plot design (SSPD) was conducted to study the response of two winter wheat (Triticumaestivum L.) cultivars (viz. salt tolerant cultivar KRL-1-4 and salt non-tolerant cultivar HD-2894) under saline irrigation regimes with and without foliar potassium fertilization on growth and grain yield of wheat during rabi 2011-12 and 2012-13. Potassium in the ratio of K+: Na+ (1: 10) was applied as foliar application during the heading stage of the crop. Results showed that the grain yield of KRL-1-4 and HD-2894 cultivars with foliar potassium fertilization at the heading stage increased by 6.5 to 22% and 3 to 15% during rabi 2011-2012, respectively under different saline irrigation regimes as compared to the control. Moreover, the results of rabi 2012-13 showed an increase in grain yield ranging from 4.5 to 20% for KRL-1-4 as compared to the control. Statistical analysis of grain yield parameter showed that the foliar potassium application in both varieties resulted in significant yield difference at 0.05 probability level as compared to the non-foliar application. Overall, it was observed that the foliar potassium fertilization increased the grain yield of both wheat cultivars, while the salt tolerant cultivar performed better than the salt non-tolerant cultivar under irrigated saline regimes.

Effects of Potassium Fertilizer on Peanuts in Israel

1966 ◽  
Vol 2 (4) ◽  
pp. 295-298 ◽  
Author(s):  
J. Hagin ◽  
H. Koyumjisky
Keyword(s):  
Free Energy ◽  
Correlation Coefficient ◽  
Exchangeable Cations ◽  
Potassium Content ◽  
Potassium Fertilizer ◽  
Potassium Fertilization ◽  
Significant Yield ◽  
Calcium And Magnesium ◽  
Potassium Exchange

SummaryResponse to potassium fertilization was tested, over a two-year period, in 24 experimental fields, predominantly in coarse-textured soils. Only two fields showed significant yield increases. Potassium availability was estimated on the basis of (a) the free energy (ΔF) of potassium exchange for calcium and magnesium, (b) the proportion of potassium in total exchangeable cations, and (c) soluble potassium extraction in correlation with the potassium content of the plants. Woodruff's method (ΔF) yielded the best agreement (correlation coefficient r = 0·77). ΔF values showed a sufficient supply of available potassium, which may have accounted for the lack of response to fertilization.

scholarly journals Effect of added magnesium, potassium, lime and nitrogen on oats: II. Nutrient contents, cation ratios and magnesium uptake

1977 ◽  
Vol 49 (4) ◽  
pp. 296-314
Author(s):  
Raili Jokinen
Keyword(s):  
Nitrogen Fertilization ◽  
Magnesium Deficiency ◽  
Peat Soil ◽  
Calcium Content ◽  
Magnesium Content ◽  
Potassium Content ◽  
Pot Experiment ◽  
Nutrient Contents ◽  
Potassium Fertilization ◽  
Magnesium Uptake

In a pot experiment on sphagnum peat soil the magnesium fertilization increased significantly the magnesium content of the grains and the straws of oats. The addition of potassium fertilization decreased the magnesium content when the plants received a magnesium fertilization. Without magnesium the rate of potassium fertilization did not have an effect on the magnesium content of the straws. The increase in the equivalent ratio of the three potassium rates and the two magnesium rates decreased the magnesium content of both the grains and the straws. Along with the magnesium fertilization the addition of lime decreased the magnesium content of the grains and increased that of the straws. Doubling the amount of the nitrogen fertilization with the magnesium fertilizer increased the magnesium content of the grains and the straws. In the case of magnesium deficiency the addition of lime or nitrogen did not have an effect on the magnesium content of the yields. The rate of magnesium, potassium, lime and nitrogen did not have an effect on the potassium content of the grains. The potassium content of the straws increased with the addition of potassium. Without the magnesium fertilization the potassium content, as well as, the ratios K/Mg and K/(Ca + Mg) in the grains and the straws were high. A part of the missing magnesium had, perhaps, been substituted for by potassium. The calcium content of the grains and the straws obtained without magnesium fertilization was significantly higher than the calcium content with magnesium fertilization. The oats substituted possibly in part also calcium for the missing magnesium. The effect of added magnesium, potassium, lime and nitrogen on the magnesium uptake by oats was discussed.

scholarly journals INFLUENCE OF DIFFERENT PREPARATS ON PRODUCTIVITY AND QUALITATIVE INDICATORS OF SPRING BARLEY

2021 ◽  
Vol 248 (4) ◽  
pp. 145-150
Author(s):  
D.T. Minikaev ◽  
◽  
M.Y. Gilyazov ◽  
E.A. Prishchepenko ◽  
R.R. Gazizov ◽  
...  
Keyword(s):  
Grain Yield ◽  
Nitrogen Content ◽  
Phosphorus Content ◽  
Spring Barley ◽  
Mineral Fertilizer ◽  
Potassium Content ◽  
Barley Straw ◽  
The Third ◽  
The Republic

In this study we analyzed the influence of the pre-sowing treatment of spring barley seeds with the biological preparat Rizoagrin and the micronutrient fertilizer Tenso Cocktail against the background of the mineral fertilizer diammofosk on the germination of seeds, the quality of the grain yield and biomass of barley straw, the structure of the crop, the chemical composition of grain and straw under the conditions of the Republic of Tatarstan on gray forest soil. It was found that the use of Rhizoagrin and Tenso Cocktail in combination with diammophos increases the grain yield up to 4.05 t / ha, which is 117 % more than the control. We noted an increase in the productivity of plants, the number of ears, grain per ear and the weight of 1000 grains in relation to the control in the same variant. The fourth option has the highest indicators in terms of nitrogen content in grain and straw – by 5.40 and 8.62% more than in the control. In the second variant, the nitrogen content in the grain is 3.24 % higher than the control, and in the straw – by 5.17 %. In the third variant, the nitrogen content in grain and straw is 2.70 and 6.89 % higher than the control. In terms of the phosphorus content in grain and straw, the increase in the third and fourth variants is at the same level – 3.06 and 5.26 % in relation to the control. The second option does not have an increase in the phosphorus content. There was a decrease in the content of potassium in grain and straw in all variants compared to the control. In the fourth variant, the potassium content in grain is lower than the control by 8.45 %, in straw – by 5.69 %. In the second variant, the potassium content in the grain is lower in comparison with the control by 4.22 %, in the third variant – by 1.40 %. In straw, the potassium content in the second and third variants is reduced by 1.62 %.

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