science help.?

Question

2 vegetables plots, a and b, in an open field were selcted for an experiment. an a, all the dead parts of the plants were cut and thrown away as soon as they appeared. in b, the dead parts were allowed to fall and decay in the ground.

after sometime, the plants in b were growing better than those in a. what was the most likely cause? EXPLAIN.

Answer 1

The nutrients in those decaying plant parts could be re-cycled into the growing plants of plot b.

Nutrient deficiency is a common problem in modern agricultural croplands- like your example plot a, we continually harvest portions of plants without giving it back.

Answer 2

The dead vegetation that was left to decompose naturally added extra nutrients to the soil and fed the existing plants. There are certain micro-organisms in decaying matter that help build the immune systems of the plants and provide a healthy bacterium for them to feed off of. Just a guess.

Answer 3

when plants or animeals die there bodies decompose into the minerals that feed the plants. if the leaves in plot a were thrown away in a different area then the ground would miss out on those nutrients

Answer 4

Pretty simple, the dead parts of the plants fell to the ground and became fertalizer for the living parts of the plants.