This post was contributed to by Drs. Sarah Jandricic and Chevonne Dayboll.
Summer is in full swing, and so too are garden mums. As you get ready for the next few months, here are a few tips to keep your crop on track.
Drip line irrigation can be a more efficient way of delivering water and nutrients to outdoor crops.
Irrigation method matters!
There are plenty of options for irrigation in potted outdoor crops, but not all are created equal if you are trying to maximize your water efficiency. Overhead irrigation by boom, or sprinkler is not efficient if your pots are not spaced tightly. Canopy sizes in the later months of production may make this impossible, especially if you choose to go with final spacing when pots first move outside. These methods of irrigation can also lead to pots that are too dry (not watered) or too wet (over watered). Plants can only use water that makes it into the pot, so low volume drip line or tape is a more effective way to delivering usable water to your outdoor crops.
Greenhouse Canada’s Greenhouse Grower Day is just over a week away! The 2017 event will be hosted at the Holiday Inn and Suites in St. Catharines, Ontario on Wednesday June 21st from 8:30am to 3:30 pm.
The “Seven Habits of Successful Growers” theme will tackle a variety of topics, ranging from crop lighting and water treatment, to labour management and automation. Other talks will look at the ingredients of a successful family business, the importance of long-range planning, and the keys to marketing to millenials. There will be lots of networking time and opportunity to talk to vendors too.
Pre-registration is encouraged to avoid lineups at the door. (But walk-ins are always welcome!)
Growing Forward 2 (GF2) Cost-share Funding Assistance Program for Producers is now offering new support for farmers to make changes in their farming operation to reduce greenhouse gas emissions. This is to support producers to transition to low carbon production and encourage energy efficiency and energy conservation on-farms.
Why should you care?One of the new Best Management Practices is especially applicable to greenhouses – A13: Reducing greenhouse gas emissions from indoor agriculture facilities.
Spring is on its way, and with cold nights and warmer days we are seeing a common spring problem – poor air quality damage on spring bedding crops. Symptoms, solutions and preventative measures are included in this 2017 update to a previous post.
Natural gas and propane are popular choices when it comes to heating a greenhouse. The products of burning fuel are carbon dioxide (CO2) and water (H20); both compounds we know are good for your plants. However, combustion is often (if not always) incomplete, and impurities such as carbon monoxide (CO), sulfur dioxide (SO2) and ethylene (C2H4) are also released leading to poor air quality if your heater is not properly vented.
Typically symptoms from ethylene damage and sulfur dioxide damage can been seen fairly quickly after exposure.
Figure 1. Signs of ethylene damage include leaf curling and epinasty, seen here in A) New Guinea Impatiens and B) lettuce seedlings.