Question 1
Which of the following is an effect of increased soil tillage on plants?
◦ Increased soil tillage can enhance root growth.
◦ Increased soil tillage increases compaction.
◦ Increased soil tillage reduces seed placement into moist soil.
◦ Increased soil tillage reduces seed germination.
Question 2
Which of the following is NOT true regarding the salt index in fertilizers?
◦ The salt index is the ratio of the increase in osmotic pressure produced by the fertilizer to that produced by the same weight of

.
◦ Fertilizers are categorized for their salt injury potential by the salt index
.◦ P salts have much higher salt indices than N and K salts when placed close to or in contact with the seed.
◦ Higher analysis mixed fertilizers generally have a lower salt index than lower analysis fertilizers.