Critical role of potassium and sodium salts against insect-pest complex of rice

A field experiment was carried out at Rice Research Station, Chinsurah, Hooghly during rainy (kharif) season, 2016 and 2017 to evaluate the effects of potassium and sodium salts on whorl maggot, leaf folder and yellow stem borer of rice. The yield and yield attributing characters were observed and benefit cost ratio was calculated. The potassium salts viz. potassium chloride (KCl), potassium nitrate (KNO3), potassium sulfate (K2SO4), potassium dihydrogen phosphate (KH2PO4) and sodium salt as sodium chloride (NaCl) were applied by three modes viz. seed soaking for 12 hours before sowing, seedling root dipping for twelve hours before transplanting and foliar sprays at 30 and 50 days after transplanting (DAT). The experimental results revealed that the foliar spray with 1% potassium dihydrogen phosphate salt at 30 and 50 DAT was the best performer against rice insect-pests by lowering down the infestation of leaf folder, dead heart and white ear head and as well as responses for good yield. Maximum benefit was recorded with foliar spray of 1% sodium chloride salt.

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Laser damage threshold, hardness and third order non-linear optical analysis of potassium dihydrogen phosphate with sodium chloride

Chemical Data Collections ◽

10.1016/j.cdc.2018.11.011 ◽

2019 ◽

Vol 19 ◽

pp. 100169

Author(s):

S. Jeeva ◽

S. Muthu ◽

G. Ganesh ◽

K. Arulaabaranam ◽

S. Chithra ◽

...

Keyword(s):

Sodium Chloride ◽

Potassium Dihydrogen Phosphate ◽

Damage Threshold ◽

Laser Damage Threshold ◽

Laser Damage ◽

Dihydrogen Phosphate ◽

Optical Analysis ◽

Third Order ◽

Potassium Dihydrogen ◽

Non Linear

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Equations for calculation of the pH of buffer solutions containing sodium or potassium dihydrogen phosphate, sodium hydrogen phosphate, and sodium chloride at 25°C

Journal of Solution Chemistry ◽

10.1007/bf02767623 ◽

1997 ◽

Vol 26 (7) ◽

pp. 709-727 ◽

Cited By ~ 18

Author(s):

Jaakko I. Partanen ◽

Pentti O. Minkkinen

Keyword(s):

Sodium Chloride ◽

Potassium Dihydrogen Phosphate ◽

Dihydrogen Phosphate ◽

Hydrogen Phosphate ◽

Potassium Dihydrogen ◽

Sodium Hydrogen Phosphate ◽

Buffer Solutions ◽

Sodium Hydrogen

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Modeling the Impact of Flow Modulation on Surface Structure during the Growth of Potassium Dihydrogen Phosphate Single Crystals from Solution

International Journal for Multiscale Computational Engineering ◽

10.1615/intjmultcompeng.v6.i6.60 ◽

2008 ◽

Vol 6 (6) ◽

pp. 585-601

Author(s):

Igal Rasin ◽

Simon Brandon ◽

Oleg Weinstein

Keyword(s):

Surface Structure ◽

Single Crystals ◽

Potassium Dihydrogen Phosphate ◽

Dihydrogen Phosphate ◽

Potassium Dihydrogen ◽

Flow Modulation ◽

The Impact

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Optical Absorption Spectra of Vanadyl Ion (Impurities) in Three Host Crystal Compounds

Zeitschrift für Naturforschung A ◽

10.1515/zna-1985-1116 ◽

1985 ◽

Vol 40 (11) ◽

pp. 1164-1166

Author(s):

O. P. Agarwal ◽

Prem Chand

Keyword(s):

Optical Absorption ◽

Potassium Dihydrogen Phosphate ◽

Optical Data ◽

Dihydrogen Phosphate ◽

Host Crystal ◽

Optical Absorption Study ◽

Potassium Dihydrogen ◽

Vanadyl Complexes ◽

Vanadyl Ion ◽

Magnesium Ammonium

Results of the optical absorption study of vanadyl ion doped in magnesium ammonium sulphate hexahydrate, rubidium sulphate and potassium dihydrogen phosphate single crystals at RT are reported. The nature of optical bands suggests a C4v symmetry of the Vanadyl complexes in conformity with the EPR results. Powder EPR data and optical data are correlated to obtain the MO coefficients.

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The Strain Rate Sensitivity and Creep Behavior for the Tripler Plane of Potassium Dihydrogen Phosphate Crystal by Nanoindentation

Micromachines ◽

10.3390/mi12040369 ◽

2021 ◽

Vol 12 (4) ◽

pp. 369

Author(s):

Jianhui Mao ◽

Wenjun Liu ◽

Dongfang Li ◽

Chenkai Zhang ◽

Yi Ma

Keyword(s):

Strain Rate ◽

Strain Rate Sensitivity ◽

Creep Deformation ◽

Potassium Dihydrogen Phosphate ◽

Rate Sensitivity ◽

Dislocation Nucleation ◽

Machining Process ◽

Dihydrogen Phosphate ◽

Potassium Dihydrogen ◽

Kdp Crystals

As an excellent multifunctional single crystal, potassium dihydrogen phosphate (KDP) is a well-known, difficult-to-process material for its soft-brittle and deliquescent nature. The surface mechanical properties are critical to the machining process; however, the characteristics of deformation behavior for KDP crystals have not been well studied. In this work, the strain rate effect on hardness was investigated on the mechanically polished tripler plane of a KDP crystal relying on nanoindentation technology. By increasing the strain rate from 0.001 to 0.1 s−1, hardness increased from 1.67 to 2.07 GPa. Hence, the strain rate sensitivity was determined as 0.053, and the activation volume of dislocation nucleation was 169 Å3. Based on the constant load-holding method, creep deformation was studied at various holding depths at room temperature. Under the spherical tip, creep deformation could be greatly enhanced with increasing holding depth, which was mainly due to the enlarged holding strain. Under the self-similar Berkovich indenter, creep strain could be reduced at a deeper location. Such an indentation size effect on creep deformation was firstly reported for KDP crystals. The strain rate sensitivity of the steady-state creep flow was estimated, and the creep mechanism was qualitatively discussed.

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