Announcements

Job offersmore »

Tweeting Growers

Top 5 - yesterday

Top 5 - last week

Top 5 - last month

Exchange ratesmore »




Be cautious when using slow release fertilizers

Fertilization with slow-release fertilizers has recently caused some damage in horticulture, as reported by Agro Expertiseburo in its newsletter.

Coated slow fertilizers are often used in horticulture. They have a long action period, whereby the fertilizers are supposed to be gradually released over time. However, in a number of damage cases it was found that the release of fertilizers may already be very high in the first period after application. This can cause high EC levels (salinity) in the pot or release too much of a certain fertilizer (for example Ammonium). This can cause damage to young plants that still need to take root. There may also be too little release of nutrition from the slow-release fertilizer at the end of cultivation, which means adding more fertilizer incurring additional costs. In the meantime too much fertilizer is rinsed out, which is bad for the environment.

When choosing a fertilizer it is important to get information about:

- What is the purpose of the fertilization;
- The content of the coated granules and its properties;
- What is released when and under what circumstances;
- How safe is the product in cultivation, first acquire experience by conducting tests;
- Compare the costs and benefits of the fertilizer and consider the environmental impact.

Examination of the crop, substrate and irrigation water provides insight into whether and the extent to which the nutrition presents irregularities. Agro Expertburo can assist you in investigating the cause and establishing the extent of the damage. In these type of damage cases Agro Expertiseburo always collaborates with the laboratories and consultants of the Delft Research Group in Delfgauw.

For more information:
Agro Expertiseburo 
Distributieweg 1
2645 EG Delfgauw
T: 015 2853617
F: 015 2853486



Publication date: 12/23/2016

 


 

Other news in this sector:

8/22/2017 Turkish investor starts organic fertiliser production in Zambia
8/18/2017 Turning pollen into a low-cost fertilizer
8/18/2017 Canada: Plant-Prod stays ahead of regulatory requirements
8/17/2017 Predicting nitrogen release from parabolic-type resin-coated urea
8/16/2017 Biostimulants to grow tomatoes in high temperature conditions
8/9/2017 Increased electrical conductivity in nutrient solution benefits tomatoes
7/19/2017 "pH should stand for plant health"
7/17/2017 The problem of high soluble salts in high tunnels
7/17/2017 RainSoil debuts new substrate enhancer at Cultivate
7/12/2017 US: California will use toilet water to grow vegetables
7/12/2017 Human urine better than fertiliser, expert says
6/22/2017 CAN (ON): Fuel prices up, fertilizer down
6/22/2017 UK: Soil testing key to realising the value of healthy soils
6/20/2017 Sumitomo Chemical and BASF collaborate to develop new fungicide
6/20/2017 China pushes new fertilizer-replacement program
6/13/2017 Toxic nitrogen forms in fresh organic growing media?
6/13/2017 Soluble salt and pH rollercoaster in fresh organic growing media
6/12/2017 Integrate worm farming into your greenhouse operation
6/9/2017 Australia: Greenpower Energy sees potential in hydroponic market
6/2/2017 AkzoNobel to expand micronutrients capacity in Europe