Problems with soil due to continuous cropping

When crops are grown continuously, different crops are grown again after one or two seasons, or crops with the same genus (crops with a close genetic history) are grown continuously, the growing environment of the crops gets aggravated. Accordingly, different symptoms of damage appear in growth and development stages.

Symptoms of continuous cropping

• Soil-borne pests : Viruses arising in previous years stay dormant in the roots, stems, and soil, remaining as residues after the crops have been harvested. They survive through the winter and then infect the crops that are planted.
• Aggravating the physical condition of the soil : There will be damage related to the soil’s capability, the conditions of microbial living and the respiration of the roots. Soil ventilation becomes bad due to excessive moisture and a rise in underground water, deteriorating the activity of the roots, and the density of carbon dioxide and ammonia in the soil is increased and oxygen is decreased by using immature organic matters, which causes a tremendous obstacle in crop growing.
• Aggravating the chemical condition of the soil : The general acidity for garden products is slightly acid or neutral at 6-6.7, but when an excessive amount of animal waste compost is used or the same fertilizer including lime is used continuously, the soil acidity can become alkalized or change into strongly acidic. Then, there is a deficiency in all kinds of nourishment and activities, causing an obstacle.
• Other damage : Aggravated soil microorganisms; creation of harmful gases.

• Measures for soil-borne pests : Amazon charcoal stimulates assimilation via uprooting, growing, glossing of plant leaves, and increased thickness, and it raises environmental resistance against salinization, gas, and bad weather.
• Improved physical condition of the soil : Amazon charcoal has many micropores inside and provides an increased yield effect due to moisture retention, nutrient-holding capacity, and improved physical condition of soil. It increases the perviousness into the roots.
• Maintenance of the chemical condition of the soil : Amazon charcoal is different from other charcoals because its pH is maintained at 6.5 (the appropriate acidity for crop growing) and doesn’t become alkalized or strongly acidic.
• Increase in native microorganisms : It enhances the activity of microorganisms and controls the decomposition of organic matters in soil and pathogenic microorganisms. Thus, it increases the amount of harvested crops and provides high disease resistance.
• Prevention of other damage : Amazon charcoal increases microbial respiration by 25% or more and controls the occurrence of harmful gases like carbon dioxide and ammonia gas.