Cucumber performs excellent well inside sac bags, because of all the nutrients applied are retained inside the sac bags. Sac bags cucumber farming is only advised for those that has little or no space for planting of vegetables. if you have the space for farming, you can plant directly at the field.
Sac bags farming reduce cost of production, cost of reploughing, weeding, digging of holes e.t.c are reduced.
If you have little space at your backyard, you can consider growing vegetables inside sac bags there.
One of the main disadvantage of using cement bags to grow crops is that the bag does not retain water. You won't know any of this till you are told. Before venturing into any Agricbusiness - impact knowledge. Don't use your funds for trial and error
FAQS
Can the crop get adequate nuitrents required to mature?
Yes
Is this purely on manure and is it compost first?
Soil and manure
How do you water it?
Hose and water pump
How many sac make up one acre?
About 800 to 900 per plot
You used cement bags if it's the one available but what you need to do is constant wetting and soil nourishing.