Problem+set+8

Problem+set+8 - 5 3 5 2 _______ Soil B 5 19 8 4 4 _______...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Name: _________________________________________ Problem Set #8 Due: Wednesday, December 1 st 1. Plant nutrients get to the root by three principal mechanisms. For each of the three diagrams, indicate which mechanism is depicted. No explanation required. 2. For each of the three soils, determine whether the soil is saline, sodic, or saline/sodic. Use the exchangeable sodium percentage to determine if the soil is sodic. Note, exchangeable cation concentrations are given as cmol of charge, not as cmol of the cation. Thus, you do not need to account for the charge of each individual cation in your calculations! Exchangeable Cations EC Ca 2+ Mg 2+ Na + K + ESP% --dS/m-- ----------------------- cmol c /kg ------------------------- ________________________________________________________________________________ Soil A 2
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 5 3 5 2 _______ Soil B 5 19 8 4 4 _______ Soil C 2 23 6 10 1 _______ ________________________________________________________________________________ Soil A Soil B Soil C Saline (Yes/No) ________ Sodic (Yes/No) ________ Show your calculation of ESP%: (more questions on back) 3. During the reclamation of sodic soils, gypsum (CaSO 4 . 2H 2 O) is applied to the soil. Provide two reasons for why gypsum is added to sodic soils? 4. Which of the following soil conditions would most likely experience greater water erosion? Provide a brief explanation for why you made your choice. a. Sand loam or Silt loam b. Soil with 30% slope or Soil with 5% slope c. Soil with no-till management or Soil with conventional tillage management d. Soil with 1% organic matter or Soil with 5% organic matter...
View Full Document

Page1 / 2

Problem+set+8 - 5 3 5 2 _______ Soil B 5 19 8 4 4 _______...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online