Determining how to irrigate

20-06-2022    16:55   |    Greenhouse Management

Here’s how to decide when to water plants and when to hold off.

“The person holding the hose has the most important job in a greenhouse.”

Yes, that is hyperbolic. However, there is a fair amount of truth in that statement. Irrigating greenhouse crops, whether by hand or automated, is one of the most important responsibilities, even if the act itself may seem mundane. One of the biggest challenges to irrigating greenhouse crops is determining when irrigation is required. Over- and under-watering crops each result in a different set of problems, but both are detrimental to crop quality. This article will cover how to approach making the determination to irrigate greenhouse crops.

On a schedule

The most rudimentary approach to irrigation is on a schedule.

Yes, it may be easy to remember, and it can also make scheduling labor and tasks more straightforward. However, the fundamental flaw to irrigating on a schedule is that it does not take a biological approach to growing plants.

Watering on Monday and then Wednesday — regardless of what happened on Tuesday — does not take into account the myriad of variables that affect water uptake and, subsequently, irrigation needs. These include, but are not limited to, the daily and seasonal fluctuations in crop age/size and growth stage, light, temperature and humidity.

Ultimately, irrigation is based on how much plants are using or taking up water, which can be directly related to transpiration, and the amount of water available in substrate. When crops are younger and smaller, there is less water uptake compared to when crops grow larger, since transpiration increases with the more numerous and larger leaves. Warmer air temperatures, higher light intensities and lower humidity promote transpiration and water uptake, whereas cooler air temperatures, lower light intensities and higher humidity reduces transpiration and water uptake. Taking a more dynamic approach to determining when to irrigate matches the dynamic nature of plants and the environment they are grown in.

Continue reading.

 

Photo created by prostooleh - www.freepik.com


Comments (4)

Ann Earnis 4 days ago

HOW I GOT MY HUSBAND BACK WITH THE HELP OF PRIEST WISDOM CONTACT ON WHATS_APP NUMBER +2348124644470

This is my testimony about the good work of priest wisdom who helped me ... I'm Ann Earnis from North Carolina USA. And am sorry for putting this on net but i will have to, by this world best spell caster that brought back my husband who left me out for past 3 years, i eventually met this man on a blog site posting by one of is client for help, i explained everything to him and he told me about a spell caster that he had heard about and he gave me an email address to write to the spell caster to tell him my problems. In just 1 days, my husband was back to me. I just want to say thank you to this truthful and sincere spell caster, sir all you told me have come to pass and thank you sir. Please I want to tell everyone who is looking for any solution to their problem, I advise you to kindly consult this spell caster, he is real, he is powerful and whatever the spell caster tells is what will happen, because all what the spell caster told me came to pass. You can kindly contact him on: his email address is supernaturalspell1@gmail.com or directly on whats-app +2348124644470  https://supernaturalspell21.blogspot.com/ facebook page: https://web.facebook.com/watch/PRIESTWISDOM11/ .....

Ann Earnis 4 days ago

HOW I GOT MY HUSBAND BACK WITH THE HELP OF PRIEST WISDOM CONTACT ON WHATS_APP NUMBER +2348124644470

This is my testimony about the good work of priest wisdom who helped me ... I'm Ann Earnis from North Carolina USA. And am sorry for putting this on net but i will have to, by this world best spell caster that brought back my husband who left me out for past 3 years, i eventually met this man on a blog site posting by one of is client for help, i explained everything to him and he told me about a spell caster that he had heard about and he gave me an email address to write to the spell caster to tell him my problems. In just 1 days, my husband was back to me. I just want to say thank you to this truthful and sincere spell caster, sir all you told me have come to pass and thank you sir. Please I want to tell everyone who is looking for any solution to their problem, I advise you to kindly consult this spell caster, he is real, he is powerful and whatever the spell caster tells is what will happen, because all what the spell caster told me came to pass. You can kindly contact him on: his email address is supernaturalspell1@gmail.com or directly on whats-app +2348124644470  https://supernaturalspell21.blogspot.com/ facebook page: https://web.facebook.com/watch/PRIESTWISDOM11/ .....

Elizabeth Addison 4 days ago

GET RICH WITH BLANK ATM CARD ... Whatsapp: +18033921735

I want to testify about Dark Web blank atm cards which can withdraw money from any atm machines around the world. I was very poor before and have no job. I saw so many testimony about how Dark Web Cyber hackers send them the atm blank card and use it to collect money in any atm machine and become rich.(DWCHZONE@GMAIL.COM) I email them also and they sent me the blank atm card. I have use it to get 250,000 dollars. withdraw the maximum of 5,000 USD daily. Dark Web is giving out the card just to help the poor. Hack and take money directly from any atm machine vault with the use of atm programmed card which runs in automatic mode.

You can also contact them for the service below

* Western Union/MoneyGram Transfer

* Bank Transfer

* PayPal / Skrill Transfer

* Crypto Mining

* CashApp Transfer

Email: dwchzone@gmail.com

Text & Call or WhatsApp: +18033921735

WEBSITE: https://darkwebcycberhackers.com

Nicole Morris 2 days ago

I ordered a job spell on a Friday night and on Monday the place I applied for a job called for me to come by their office. They gave me the job I applied for and made me an offer of more per hour than I have ever made in my life! I am so happy! Government jobs sometimes are a slow process. You somehow managed to speed up that process, and I start in just a few days! DR EMU I will be forever grateful thanks once again. You can call on him for help on his email address emutemple@gmail.com or add him up on his WhatsApp +2347012841542. DR EMU also lent a helping hand to the following } 1. GETTING YOUR EX LOVER BACK. 2. WINNING LOTTERIES. 3. CHILD BEARING. 4. BREAKING OF GENERATION COURSE. 5. GETTING OF JOB. 6. JOB PROMOTION. 7. HERBAL CARE. 8. SPIRITUAL PROTECTION. 9. HERBAL CARE. 10. SPIRITUAL PRAYER. E.T.C..

Write new comment

More news