Maisto medžiagos
Soybean - Deformation
Simptomai
Upper leaves turn yellow and become mottled with small, brown necrotic spots.
Leaf margins are bent down and internodes are shortened.
Priežastys
Boron deficiency
Soybeans are quite tolerant to B deficiency.
Symptoms are similar to K or Ca deficiency and to leafhopper injury.
Soybean - Deformation
Simptomai
Upper leaves turn yellow and become mottled with small, brown necrotic spots.
Leaf margins are bent down and internodes are shortened.
Priežastys
Boron deficiency
Soybeans are quite tolerant to B deficiency.
Symptoms are similar to K or Ca deficiency and to leafhopper injury.
Soybean - Deformation
Simptomai
Upper leaves turn yellow and become mottled later small, brown necrotic spots appear.
Leaf margins are bent down and internodes are shortened.
Priežastys
Boron deficiency
Soybeans are quite tolerant to B deficiency.
Symptoms are similar to K or Ca deficiency and to leafhopper injury.
Boron deficiency padidėja, kai yra
- Sandy soils
- Alkaline soils
- Soils low in organic matter
- High levels of nitrogen
- High levels of calcium
- Cold wet weather
- Periods of drought
Boras yra svarbu, nes
- More efficient carbohydrate metabolism and protein synthesis
- Improved pollen germination
