Yield response of potato (Solanum tuberosum) to the different rates of Sulfur

Monday, July 26, 2021
3:45 PM - 4:00 PM


In the United States of America, potato is cultivated across all regions, and in Florida, it is grown in northeast and central areas of the state. In the last two decades, sulfur (S) deficiency symptoms in the crops have become more prominent, specifically because of the decreasing emission of S-based gases, high leaching of S through the soil profile, and less use of S-based fertilizer. The study's objective was to develop the S rate recommendation for both fresh market and chipping type of potatoes cultivated in Florida. The study was conducted at six different locations using the randomized complete block design with four replications in each site. Five different rates of S (Gypsum 17 % S) 0, 40, 80, 120, and 160 pounds per acre were applied at planting, and the morphological growth of crop was recorded, using Holland scientific crop circle ACS 435 active sensor, which has the wavelength range of 670nm, 730nm, and 775nm and gives the values for the red edge, NIR, NDRI, NDVI, and LAI. The soil and plant samples have been taken between potato initiation and bulking. The yield for the two different types of potato will be calculated differently, and S rates will be recommended accordingly.

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