Recent studies suggest that rhizosphere soil microarthropods may have a major role in determining soil nitrogen availability. Desert soil microarthropods are consumers of soil bacteria, fungi, and nematodes, thus they accelerate mineralization processes by causing turnover in immobilized nitrogen.. Five plots were randomly assigned to one of four treatments: (1) chlordane amendment 100ml AI (active ingredients) per 10,000 ml) to exclude microarthropods, (2) sprinkler irrigation (6 mm per week), (3) sprinkler irrigation (6 mm/week) plus chlordate amendment (as above), (4) control (no treatment). Three randomly located soil subsamples were taken from each plot. For each sample a plant was measured (two diameters and one height) then clipped at ground level, collected in a paper bag and transported the lab. After a plant was collected, a rhizosphere soil sample was taken using a soil core (10 cm diameter, 15 cm depth). The soil sample was placed in a plastic bag, stored in a cooler and immediately transported to the lab (see package 210385001). This dataset contains plant diameters, mites soil weight, root weight, nematode soil weight, root total nitrogen, and nematode number. See methods for detailed information. For additional data from this larger study, refer to other JRN packages: 210385004, 210385003, 210385008, 210385005, 210385006, 210385001. Sampling occurred in 1987. This study is complete.
This dataset is from the following thesis:
Silva, Solange Inacia. 1989. The effects of microarthropods on nitrogen availability within the rhizosphere of Erioneuron pulchellum in a northern Chihuahuan Desert ecosystem. New Mexico State University: Las Cruces, NM.