Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to take an accurate soil sample [title] Obtain a soil sample bag or bags from a department of agriculture extension office. [step] ( listed under us government in the phone book. ) it will contain directions and labeling instructions.

Ending1: A second zip-lock bag is better for detecting soil that contains nitrates. [title] Start a potting soil test indoors at a place with strong, moist soil. Ending2: [title] Fill up the bag with fertile soil. [step] Your soil sample bag will have a label that spells out that you want soil to be fertile. Ending3: Alternatively, purchase the bag from a commercial testing lab. The cost for either should be around $5.00 to $10.00. Ending4: It will also contain directions for the overall composition of the soil. [title] Fill a plastic bag or plastic storage container approximately 2 " deep with one inch (2.5 cm) of soil.

Answer format: ending1/ending2/ending3/ending4