Showing posts with label fertigation. Show all posts
Showing posts with label fertigation. Show all posts

Jul 26, 2016

Everlasting Summer : Hydrangeas

In the cool northwest, summertime means hydrangeas; and boy, do we have hydrangeas!

Hydrangea field sun valley floral farms
 We've been growing hydrangeas (H. macrophylla) in our coastal Arcata fields for over a decade, and in the last few years we've planted new hybridized varieties.  These are bred for better performance, allowing us to bring some amazing hydrangea attributes to the cut flower market: manageable bloom heads in a range of sizes, strong stems, amazing vase life, and of course, a gorgeous array of color.

Shadow hydrangea Sun Valley floral farms
Shadow
Noblesse hydrangea florets green and white
Noblesse
Revolution Hydrangea bicolor
Revolution (in Pantone's Color of the Year, Rose Quartz and Serenity)

The color variations we are producing are off-the-charts.  Coloration of these plants is dependent upon their specific variety as well as the acidity of the soil or water.  A pH of 5 or below produces shades of blue and lavender, while a pH of 7 or higher will give us vibrant pinks.  Just take a look at the different colors we get by changing the pH of Everlasting Opal:

Opal Hydrangea pH blue pink lavender
Everlasting Opal, from pink to blue

I love walking through the hoops just to see the range of colors within one variety. One of my favorite varieties right now is Amethyst, and looking at its kaleidoscopic coloration, you can see why:
Amethyst Hydrangea close up
Blue/Green and Lavender/Green Amethyst
Amethyst hydrangea pink and green
Pink and Green Amethyst

Growing Practices

Soil pH aside, the most important element to growing long-stemmed, colorful blooms is temperature and light.   H. macrophylla is native to the maritime climate of coastal Japan, which means they love our coastal setting here in Humboldt County where the ever-present ocean breeze dissipates the heat.  Hydrangeas like to keep cool, and they also need a little bit of shade.  We cover our open hoop houses with shade cloth, which gives the plants just enough sunlight to grow and develop, while also allowing the coastal air to circulate freely.  This environmental setting encourages long stem length and complete coloring of the florets.  In winter, we keep the dormant plants uncovered, where the Humboldt rainfall nourishes the shrubs for production the following spring.

Green Emerald

White emerald hydrangea close up florets
White Emerald
We've seen a lot of success with one crop-tending practice in particular, known as Fertigation.  We inject fertilizers and soil amendments into our irrigation system, distributing the enhanced solution among the crops using a computer program.  This allows us to regulate the amount of nutrients each variety receives, helping us to be more efficient with our natural resources while also controlling the resulting end product.

Lavender Opal

blue hydrangea
Blue Opal

pink hydrangea
Pink Opal
antique hydrangea
Antiqued Hydrangeas
Our hydrangeas are ready and will continue to be in production through the end of the summer;  then, fresh hydrangeas will give way to the gorgeous, marbled tones of  Antiqued Hydrangeas.  



Thanks to both innovative plant breeding and the growing techniques of our knowledgeable flower farmers, Sun Valley continues to bring improvements and advancements to the Hydrangea Cut Flower Market.  By exploring new varieties and analyzing our growing methods we naturally follow one of our guiding principles, "Continuously improve and innovate."  And what a wonderful world of color this practice has brought to both us and you!

Sun Valley hydrangea varieties










Mar 12, 2015

Components of Drip Irrigation





Water Source / Pump – To provide sufficient amount of water
Water source can be an open well / bore well or water stored in syntax tank.  For home gardens and small plots syntax tank with 10-15 ft height is enough to distribute water (uses gravity to increase water pressure) and for farm field more than 1 acre minimum 3 – 5 hp motor is required.

Filters – To remove particles from water
Filter ensures clean water into the system.  Filter types are Screen Filter, Disk Filter, Hydrocylone Filter and Sand Filter.  Any one of these filter can be used. Different sizes are available according to the flow rate.

Pressure Gauge – To monitor the pressure flow from filter

Ventury – Not mandatory, used for fertigation through Drip Irrigation

Fertilizer injector is a useful addition to drip irrigation system which allows you to deliver nutrients directly to the root zone and injector can help produce maximum plant growth.  Easy to install and require no outside power source.  All injectors should be installed downstream from a back flow preventer.

Control Valves – To open and close the water system in Drip irrigation
This is made either of metal or plastic to control the pressure and flow of water into Drip irrigation system.

Main Line
It can be a PVC / PE / HDPE /LDPE material and size depends on the flow rate.

Sub-Main Pipes  
Made of PVC / PE / HDPE /LDPE and connected to the laterals and size depends on the flow rate.

Laterals – transport water to the root of plants
Made of LDPE / LLDPE stretched along the crops to provide water to the plants directly

Emitters – Control the water flow from lateral into soil
It’s device that is used to emit the water to the root zone of the plant. Different types are available

Fitting and Accessories
Tee connectors are used to connect main line to sub-main and sub-main to laterals. Available sizes are 16 x 16 mm, 12 x12 mm

Straight connectors are used to connect pipes and also called as joiners

Take-off tee is used to connect the lateral pipes to the sub-main pipe with the help of rubber washer called grommets