Announcements

Job offersmore »





Tweeting Growers

Top 5 - yesterday

  • No news has been published yesterday.

Top 5 - last week

Top 5 - last month

Exchange ratesmore »




Germany: What is going on with the tomatoes?

The changeable weather of this summer was an issue for tomatoes. According to data from the Chamber of Agriculture North-Rhine Westphalia most damages are split open fruits, or fruits with apical-blossom end rot. Some tomatoes show yellow or green shrouds or so-called gold-dots. 

The tomatoes are splitting open in a circular manner when the shoot tips are removed or when very hot days are followed by a rainy period. When the weather is hot, the plants are aiming to take in as much water as possible, if the weather then changes to rain there may be too much pressure on the skin and the fruit will split open. To prevent this, the plants should be watered less when the weather is frequently changing.

When the fruits are not ripening fully, it is called yellow or green shroud, caused by too much sun exposure. Other stressful factors, such as sporadic heat periods or a semi-ideal availability of nutrients can intensify the problem. In this case, plants should be shaded.

Apical-blossom end rot is a grayish-brown discoloration of the lower end of the fruit. This is caused by a shortage of calcium due to low pH levels. It can also be caused by too high levels of ammonium, potassium, magnesium and sodium, which can hinder the absorption of calcium and cause the end rot. Another possibility is when the soil is constantly too dry.

When the skin of the fruit is covered in tiny yellow/gold spots, there were too many calcium crystals stored in the skin. This can be caused by high root pressure, a wrong ratio of calcium and potassium or unfavorable air humidity.

Source: Chamber of Agriculture North-Rhine Westphalia


Publication date: 8/31/2017

 


 

Other news in this sector:

2/16/2018 Pakistan: Need for modern technology use in agriculture stressed
2/15/2018 Utah working on improving specialty crop production
2/14/2018 Vietnam: Hi-tech methods raise production value of farm produce
2/8/2018 Fixing Food: The Mediterranean Region
2/7/2018 2018 e-GRO webinar recording links
2/7/2018 Canada's Minister of Agriculture visits Delphy Improvement Centre
2/6/2018 "44% of Spain runs a great risk of soil erosion"
2/5/2018 Do we really need to double food production by 2050?
2/5/2018 Lettuce saves the Colorado River
2/5/2018 Spain: UPA-UCE opposes proposal to reduce tomato acreage
2/5/2018 US (CA): Tomato rootstocks offer production attributes
2/1/2018 Cultivar variety and added potassium influence hydroponic basil
1/31/2018 UK: Useful information for strawberry growers
1/31/2018 Pythium root rot on hydroponically grown basil and spinach
1/30/2018 Haskap berries: great possibilities for Canada
1/26/2018 Philippines: Growing Thai warty pumpkins
1/26/2018 Scientists help predict where to grow food worldwide
1/25/2018 Indian farmers learning to double their yields
1/25/2018 UK: AHDB provides information for strawberry growers
1/23/2018 Mardenkro publishes second book