填空题
填空题
Complete the sentences below.
Write ONE WORD ONLY for each answer.
In hydroculture, plants are grown with their roots in water so 1 is necessary for the upper part of the plant.
Write ONE WORD ONLY for each answer.
In hydroculture, plants are grown with their roots in water so 1 is necessary for the upper part of the plant.
填空题
LECA is made from 1.
填空题
Label the diagram below.
Write NO MORE THAN TWO WORDS for each answer.
Write NO MORE THAN TWO WORDS for each answer.
填空题
Which
TWO
kinds of produce are especially suited to the nutrient film technique?
A. peas
B. beans
C. potatoes
D. yams
E. tomatoes
A. peas
B. beans
C. potatoes
D. yams
E. tomatoes
填空题
Which
TWO
materials can be used as a substratum?
A. oxygen-rich solution
B. coconut fibre
C. mineral wool
D. rock
E. paper fibre
A. oxygen-rich solution
B. coconut fibre
C. mineral wool
D. rock
E. paper fibre
填空题
Write NO MORE THAN TWO WORDS for the answer.
What do growers risk when moving from an old system to a new one?
What do growers risk when moving from an old system to a new one?