Experiment With Potatoes (Classic Reprint) - Hardcover

Inhaltsangabe

Excerpt from Experiment With Potatoes

The primary purpose of these trials was to determine the effects of the three principal plant food nutrients on the growth of potatoes to find out, if possible. Whether any changes in the fertilizer formulae now on the market should be made to increase yields or to lower production costs. Accordingly, a 4 - 8-7 fertilizer was chosen as standard treatment and all check plots received one ton of fertilizer per acre of this analysis. In the first two courses of the rotation on the Jackson farm, potatoes were grown without nitrogen and with double nitrogen in the 0-8-7 and 8 - 8-7 series. Without phosphorus and with double phosphorus in the 4-0-7 and 4-16-7 series. Also with no potash, limited potash and increased potash in the 4-8 - 0, 4 - 8-3 and 4 - 8 - 10 series.

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