Study of Phosphorus on Potato Growth and Seed Production in Media
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Abstract
The purpose of this study was to examine the effect of phosphorus on potato tuber production in the growing media. The experimental design was a randomized complete block design (RCBD) with 3 replications and 4 different fertilizer management. The experiment consisted of 1) 1.0 g of total P per bag, 2) 1.1 g of total P per bag, 3) 1.2 g of total P per bag, and 4) 1.1 g of total P per bag and included foliar phosphorus spraying. The results during the experiment with the 1.1 g of total P per bag is sufficient for potato growth and products. During 30 - 90 days after planting, it was found that all levels of phosphorus did not affect growth, leaf color, and number of plants. However, 30 days after the experiment, it was found that 1.0 g of total P per bag and 1.1 g of total P per bag of potatoes was the plant height is highest. At 60 - 90 days, there was no effect on the height of the potato plants. Although the experiment with the 1.2 g of total P per bag produced the highest numbers of stolon at 30 - 60 days it was not statistically different from a treatment with the 1.0 g of total P per bag. Also, at 90 days, the phosphorus level was not statistically different. In terms of potato production, it was found that at 60 days treated with the 1.1 g of total P per bag. Resulting in the number of tuber sizes 40 - 65 millimeters having a statistical difference in the number of tubers, However, during the harvest period of 90 days, it was found that using all levels of phosphorus no statistical difference in the number of tubers, tuber size, and total weight per bag. Phosphorus concentrations in plants, roots, tubers, and the uptake of phosphorus in potatoes were statistically different (P>0.05) Therefore, the potato tuber production in growing media can reduce phosphorus consumption from the original level by 0.1 - 0.2 g of total P per bag in the production of potato cultivar FL 2215.
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