Some of the experts from the green house denied the relation between water management and green house.
But as per my understanding there is a relation. The evaporation losses are less and due to this less water consumption in the green house by crop, so water management is a part of green house.
How the water is given? By drip, by sprinkler, by fogging or the traditional way?
Dear sir, under green house condition, carbon assimilation rates of plant increased manifold hence affect their overall growth and vigor. This in turn, increased the water requirement of plants. further, also mentioned in FAO drainage handbook no 52 that due to increased in temperature under controlled chamber/polyhouse/greenhouse, the transpiration rate also increased proportionately. Hence, water requirement of plants will be different in that case. Further adding to your question, water should be preferred via drip irrigation under green house and irrigation scheduling should be based upon the replenishment on current water deficit by keeping your pan evaporimeter inside the greenhouse if using pan method for scheduling irrigaiton.
regards
Ashish, there is no green house without water management, so there is a relation. As long as you have decided to house those plants, you have to provide for their care and one care is providing water.
Kwamina Ewur Banson &
Shashi Pathania
thank you for giving answer,
I perfectly agree with your statement,I got confidence against an expert in our locality.
there is a perfect relation between green house and water management as far as plant growing is concern.
again thank you.
Dear Ashish,
Thank you for your interesting question. of course, there's a direct link between greenhouses and water management. under a greenhouse you have drip irrigation which is very efficient type of irrigation (till 70% of water economy). however, there is an other point that a lot of people don't mention. when you you use drip irrigation, you don't have enough infiltration so less water recharge of the aquifer especially where you have a lot of farmers pumping water from that aquifer; that's why, in my sens, greenhouses are in the middle of the debate of water management
regards
Dear All,
Water management doesn't mean that lesser water is consumed by the crop. Water management means "application of correct amount of water, at the correct time and at correct place". So the crop would receive the same, even more amount of water, but the irrigation application losses will be reduced and hence the irrigation water would be used more efficiently by the crop.
This increased application, and hence the water-use, efficiency keeps water from being part of environment in the form of evaporation (not transpiration). Hence if we can practice good water management, it would limit the green house effect to our environment.
Regards
Zafar
- Badges
- Science topic
- Similar topics
- Geoscience
- Asia
- India