Soil nitrogen: Effects of Various Nutrients and Water on Vegetation

This experiment was conducted within the fenced areas of fields A, B, C, and D. The purpose of this experiment was to determine the effect of various nutrients on vegetation. There were eight different nutrients and a control. The different nutrients were N, P, K, Ca, Mg, Na, H2O, and a combination of trace metals. There were 36 plots in each field, 4 replicates of the 9 treatment levels. The plots were 1 meter by 4 meters and were laid out in a 4 by 9 grid. The grid was divided into 4 quarters and treatments were assigned with a randomized block design.

本实验于A、B、C、D四块围栏农田内开展，旨在探究各类营养元素对植被的影响效应。实验共设置8种不同营养元素处理组与1组对照组，涉及的营养元素包括氮（N）、磷（P）、钾（K）、钙（Ca）、镁（Mg）、钠（Na）、水（H₂O）以及微量金属复合配方。每块农田内设有36个样地，对应9种处理水平各设置4次生物学重复；样地规格为1米×4米，以4行9列的网格布局排布。该网格被划分为4个分区，采用随机区组设计完成处理组的随机分配。