Symptoms of nutritional deficiency in coffee plants

The development of coffee plants depends partly on the soil and largely on the farmer’s care process. Plants are only healthy when provided with adequate nutrients and have an effective disease prevention process.

Coffee is an industrial crop grown a lot in the Central Highlands provinces. Although coffee prices have continuously dropped in recent years, coffee is still a key crop in the region.

So, what substances are often deficient in coffee plants? And what are the signs when plants lack nutrients? Let’s find out together:

Trees lacking nitrogen: Trees grow poorly, trees are disproportionate, have few branches, few new buds, small leaves, leaf edges turn yellow-white and then yellow, starting from old leaves to young leaves. Without nitrogen, the tips of the branches will dry out, the old leaves will gradually fall off, leaving the branches bare, and the fruits will easily fall.

Excess nitrogen: Young shoots grow too strongly, many buds grow backwards, branches stretch out, but are very small, weak, and sparsely burned. The leaves are too dense and dark green, the leaves are large but thin, easily torn and broken. Sparse fruit bunches, low fruit set rate, high fruit drop rate.

The tree lacks phosphorus: This is clearly shown in the old leaves of branches with many fruits. The leaves are lemon yellow and gradually turn pink. If the deficiency is severe, they will turn dull red to purple and then die. The color change in leaves starts from the tip of the leaf, then gradually spreads to the entire leaf. Young leaves are dark green and easily fall off. Lack of phosphorus makes coffee roots underdeveloped, weakly woody, and limits the process of flower bud formation.

Plants lacking Potassium: Reddish yellow spots or stripes appear on the leaves, then turn into dark brown streaks and weave along the leaf edges, spread from the top of the leaf down and then begin to fall. Potassium deficiency old leaves fall a lot, fruits fall a lot, fruits are small and have flat seeds.

Plants lacking calcium: Leaf tips curl unevenly inwards.

Plants lacking Magnesium: The leaf veins have many dark green veins, then develop olive green streaks spreading from the middle of the leaf outward. Yellow streaks appear parallel to the main vein, then spread out. The area between the leaf veins turns from olive to green to yellow and finally to brassy, ​​followed by leaf drop.

Plants lacking sulfur: Coffee leaves turn pale yellow, especially on young leaves, with curled leaf edges. The leaves are brittle, break easily, tear easily and the leaves die from the outside edges to the inside of the leaf. The old leaves fall off a lot, leaving only the young leaves with a pale yellow color.

Zinc-deficient plants: Leaves are short, small, knife-shaped, with prominent veins on light green or yellow leaves. The bunches of leaves at the top grow close together. The buds grow slowly and cannot stretch out. When lacking, many leaves die and fall.

Plants lacking Bo: Young shoots die, buds spread out like a fan, leaves are deformed, one side of the leaf edge shortens, causing the leaf to curl, the leaf blade is narrow and long, and the leaf tip is olive green or yellow-green.

Plants lacking Manganese: The last pair of spreading leaves turns from yellow to light green, or olive green to yellow with white spots.

When a tree has the above symptoms, farmers need to quickly determine which nutrients the tree is lacking and take timely additional measures.

Farmers can use BSF Smart Farm bio-organic fertilizer to provide all the necessary nutrients for coffee plants such as: organic nitrogen, humic acid, NPK, Si, and necessary trace minerals. for trees.

BIO – COFFEE: A high-quality organic microbial nutritional product specifically used to supplement nutrients for coffee plants. The product is 100% organic and is not toxic to humans and the environment.

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