Agriculture

[Armuro]

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Blueberry

Blueberry bushes don’t grow

Hello! We have a blueberry plantation of 3. 75 ha which in the autumn of this year should turn 3 years old after planting. 80% of the shrubs grow properly, but on the other side, we encounter problems. The plants have yellow leaves, do not grow at all and after a while some dry out towards the tops. I want to mention the fact that fertilization is done according to a well-established program, with fertilizers based on nitrogen, phosphorus, potassium, ammonium sulfate, etc. We also spray foliar with microelements (Cu, Fe, Mn, Mo, Zn, Br). The plants are regularly watered. Phytosanitary treatments were made in the spring before flowering with Champ, Faster, Mineral oil. In May, we applied Aliette, Score, Milbeknock and we are going to repeat with Switch and Karate Zeon. Last year I checked the acidity of the soil and indeed the pH was a bit high in the problem area (6-6. 5). So I took out the plants and replanted them by changing the soil (I enclosed in ridges the soil with the corresponding acidity, 4. 5-5. 5, mixed with sawdust). This year they had a pretty good start, but now they are stagnating again. In one of the photos, you can see beautiful and developed plants that are on the same line as those with problems, so it is not a problem of irrigation. To the affected plants we applied a slightly larger amount of fertilizer, hoping that they will grow more vigorously. But no positive result is observed. I also want to mention that it rained a lot this year. I look forward to your reply. Thank you!

• This topic was modified 2 years ago by Armuro.
• This topic was modified 2 years ago by Armuro.
• This topic was modified 2 years ago by Armuro.
• This topic was modified 2 years ago by Armuro.
• This topic was modified 2 years ago by Armuro.

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Hello! Correcting the pH of the soil is an extensive process, which consists in the application of chemical fertilizers (such as those containing ammonium sulfate), but also organic fertilizers, based on microorganisms, which bring a supply of organic matter to the soil and stimulate soil activity. Given that you already applied a fertilizer based on ammonium sulfate, in addition to it, you can apply a product such as Organic Soil Activator, 350 ml, or a fertilizer such as AMN BonaVita, 500 ml, containing beneficial microorganisms, which are found naturally in the soil. However, this process is a long one, and the results can be seen after several seasons of vegetation, depending on the reaction of the soil to the amendments applied, therefore, it is important to periodically perform soil tests (pH, availability of elements, organic matter, etc. ), for better monitoring of the process.

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