Heavy Eater
Stark Zehrer , means Zehrer and weak Zehrer are plants that more escape the growth the ground or less nitrates and other nutrients. In the kitchen garden this division takes place for better harvest yield. There, the soil is given the opportunity by the crop rotation of heavy and weak eaters to recover in the low-consumption planting phase.
Heavy consumers, in particular, remove a lot of nitrates from the soil. Regular cultivation therefore requires compensatory measures (such as mulching with nitrogen-rich substrates, fertilizing with mineral or organic fertilizers , etc.). Heavy eaters include, for example, various types of cabbage (such as rose, flower and white cabbage), potatoes and corn .
Weak eaters are z. B. Herbs that can be found under natural conditions on lean, nutrient-poor or arid locations and legumes . The weak eaters include lettuce , some beans , radishes and onions . Some weak consumers are able to bind nitrogen through symbiosis with root bacteria.
Mean consumers lie between these extremes. These include B. spinach , strawberries , leeks and carrots
The availability of nutrients in the soil also depends on the soil reaction , i.e. the acid-base ratio. In particular, the availability of the plant minerals calcium, iron and phosphorus is largely determined by the pH value of the soil (as a display value for the acid-base ratio). In botany, plants are therefore divided into lime-loving and lime-avoiding species.
Heavy eaters can also be used specifically to reduce nutrient levels. In the area of pond planting, for example, too high a nitrate content in the pond water can be reduced by planting strong eaters ( iris , cattail ) and thus limiting algae infestation.
See also
Individual evidence
- ↑ Jürgen Wolff (Ed.): My beautiful organic garden. Kosmos garden classics . Franckh-Kosmos-Verlags-GmbH & Co, Stuttgart 1999, ISBN 3-440-07606-7
- ↑ Larcher, Walter: Ecophysiology of plants: life, performance and stress management of plants in their environment. Ulmer, Stuttgart 1994.