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Influence Of Silicon On The Development Of Anthracnose Of Grain Sorghum, Sanjay Pokhrel
Influence Of Silicon On The Development Of Anthracnose Of Grain Sorghum, Sanjay Pokhrel
LSU Master's Theses
To study the effect of Silicon (Si) with and without a fungicide on anthracnose development of sorghum, several experiments were conducted in the greenhouse and field. In the initial study, different Si rates [0 (control), 0 (lime control), 200, 400, 600, 800 kg Si/ha] were used in a low-Si Alfisol to determine if inoculum densities were affected by Si levels. No differences were observed between inoculum densities of 1*105 and 1*106 conidia/ml in affecting anthracnose development in the greenhouse. Anthracnose severity was found to be lowest in plants treated with 800 kg Si/ha, regardless of inoculum density. In another study, …
Silicon Fertilization In Rice:Establishment Of Critical Silicon Level And Its Impact On Availability Of Nutrients In Soils Of Louisiana, Wooiklee Sundayboy Paye
Silicon Fertilization In Rice:Establishment Of Critical Silicon Level And Its Impact On Availability Of Nutrients In Soils Of Louisiana, Wooiklee Sundayboy Paye
LSU Master's Theses
While silicon (Si) fertilization is widely practiced in paddy rice production, the establishment of critical soil Si levels has remained understudied. This study was undertaken to: 1) determine the critical soil Si level for rice production in Louisiana using different extraction procedures, and 2) document the relationship between plant-available Si and select essential plant nutrients in soil and their uptake by rice. Field trials were established at 12 sites across Louisiana from 2013 to 2015. Si was applied as silicate slag (SiO3, 14% Si) at the rates of 0, 1, 2, 4, 6, and 8 Mg ha-1. Agricultural lime was …