Why do you need to use soil tester to measure the content of each element in the soil when growing crops, because each element in the soil is directly related to the growth of the crop. Let's take a look at the harm to crops caused by the imbalance of soil elements.
(1) Nitrogen deficiency, weak tree vigor, and low yield. Excessive amount of nitrogen leaves longer, more floating fruit.
(2) Phosphorus deficiency, defoliation during flowering, little or no flowers, large number of fruit drops before ripening, rough skin, delayed ripening, affecting carbohydrate metabolism, respiration, photosynthesis; excessive phosphorus, causing activation of copper ions, resulting in poisoning; Post-phosphorus accumulation is accompanied by magnesium deficiency, zinc, manganese, and boron.
(3) Insufficient potassium may affect photosynthetic and respiratory effects, causing severe defoliation during flowering, leading to physiological fruiting, small fruit, thin and easily cracked fruit, early coloration, and reduced yield.
(4) Calcium deficiency, root growth is blocked, easy to rot, iron deficiency, manganese-like mosaic disease.
(5) Insufficient magnesium, photosynthesis is blocked, the tree vigor is weak, the flowering and fruit setting are few, and the branches are not fruitful when there are serious shortages.
(6) Insufficient zinc affects the development of flowers. The rate of fruit setting is high, roots are damaged, and fine roots are dead. Zinc is excessive and roots are easily injured.
(7) Insufficient boron affects flower quality, fruit setting, and impedes the operation of carbohydrates. Branches and trunks have internode cracking, fluid flow, small deformities, and thick, hard skin.
(8) Insufficient iron affects breathing, photosynthesis, and redox.
(9) Excessive amount of manganese, pH is 4~5. After young leaf yellow does not turn green, the leaf ends become brown and dry, old leaves fall off, and the shoots are bald when severe, and there is basically no new shoot growth. Manganese is easily leached in acidic soils, causing deficiencies and very low solubility in alkaline soils. Insufficient manganese affects the synthesis, decomposition, and absorption of carbohydrates.
(10) Insufficient copper, dry leaves, yellow leaves. Excessive copper has a toxic effect, which is unfavorable to the root system and leaves chlorosis.
China Agricultural Instrument Network Soil Testing Instruments: Soil Moisture Tester, Soil Fertilizer Tester
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