The harm of the latest strawberry deficiency and its preventive measures

During the growing period of strawberries, a variety of nutrients are needed, and the lack of some elements will lead to corresponding diseases, and we call this physiological disease caused by the lack of certain nutrients as nutrient deficiency. Let's learn about the symptoms and preventive measures of strawberry deficiency with the editor.

1. Calcium deficiency

Strawberry calcium deficiency worry that in the flowering bud stage, the new leaf tip and leaf margin turn brown and burn or dry, the leaf vein fades and becomes brittle, the leaflet can not cause growth, the root system is short and underdeveloped, and hard fruit is easy to occur.

Preventive measures: timely watering, keeping the soil moist, 0.2-0.3% calcium chloride or foliar spraying with 0.3-0.5% calcium nitrate solution when calcium deficiency is found; when severe calcium deficiency, 47% biochemical calcium fulvic acid 2 kg per mu should be used and irrigated along the ditch when watering.

2. Magnesium deficiency

Strawberry magnesium deficiency, at first, the upper leaf edge yellowing or brown scorched, and then chlorosis between the veins and attend dark red spots, some spots will become necrotic spots. When the scorch is serious, the stem leaves are light green, and the scorch phenomenon develops with the increase of leaf age and the aggravation of magnesium deficiency. Generally, strawberries with low sandy quality or excessive application of nitrogen and potassium fertilizer are prone to magnesium deficiency.

Preventive measures: balanced fertilization to prevent excessive use of nitrogen and potassium fertilizer, it is found that magnesium deficiency is timely spraying low concentration magnesium sulfate foliar spraying, generally every 10 days or so, 2-3 times in a row.

3. Iron deficiency

Strawberry iron deficiency is, young leaves yellowing, chlorosis, the beginning of the leaf veins are still green, between the veins become yellow-white, serious, the new leaves turn white, leaf edge necrosis or leaflet yellowing.

Preventive measures: increase the application of organic fertilizer. Timely drainage, keep the soil moist, found that iron deficiency is, timely use low concentration of ferrous sulfate foliar spraying.

4. Boron deficiency

Strawberry boron deficiency is that the leaves are short and circular, deformed, the lotus root is wrinkled, the leaf margin is brown, the vein tip of the old leaf is green, the leaf is rolled up, the stolon occurs slowly, the root is few, the pollination seed setting rate is low, the fruit is deformed or nodular, the fruit seed is small, and the fruit quality is poor.

Preventive measures: timely watering, keep the soil moist, found that boron deficiency, timely spraying big men and women's borax solution foliar fertilizer.

5. Copper deficiency and zinc deficiency

When strawberry is copper deficient, the new leaf veins turn green and white spots appear; when zinc deficiency occurs, the old leaf becomes narrower, especially when the basal leaf is more zinc deficient, the narrower part of the leaf is elongated, when the zinc deficiency is serious, the new leaf yellowing, the leaf vein is reddish, and the leaf edge has obvious serrated edge.

Preventive measures: when copper deficiency is found, foliar spraying with 0.1-0.2% copper sulfate solution, usually every 5-7 days, for 2-3 times. If zinc deficiency is found, foliar spray with 0.05-0.1% zinc sulfate solution is used in time.

The above is the introduction of strawberry deficiency harm and preventive measures, hope to help you, want to know more related knowledge, please follow us.