Effect of soil moisture on crops

• Posted by Binda BindaJD April 4, 2023 Filed in Arts & Culture #soil sensor  52 views
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  1. Direct impact

   Too much or too little moisture inhibits or stops respiration, photosynthesis, growth and other life activities. Soil moisture determines the water supply of crops and directly affects the growth of crop roots. Only if the soil moisture is suitable, the root system can absorb water and leaf transpiration to reach a balanced state.

   

  If soil moisture is too low, soil drought will occur and photosynthesis will not be carried out normally, reducing crop yield and quality; severe water shortage will lead to crop withering and death.

   

  Too high soil moisture deteriorates soil aeration and affects the activities of soil microorganisms, which hinders the respiration, growth and other vital activities of the crop root system. The root system is deprived of oxygen, suffocated and finally dies.

     

  2. Indirect effects 

  A. Plant collapse and disease

  High soil moisture affects the normal growth of the above-ground parts of the crop, resulting in growth, collapse, and the growth of various diseases.

   

  B. Depth of plant roots

  In moist soil, crop roots are not developed, grow slowly and are distributed in shallow layers. When the soil is dry, the crop roots are rooted down and extend to the deeper layers.

         

  C. Effect on crop quality

  Moisture has a large impact on crop quality. High temperature and little rain in summer, high content of protein in the seeds of grain crops; low temperature and much rain are conducive to the formation of starch in the seeds. Some professional scholars, after studying the chemical composition of wheat in the world, pointed out that wheat seeds produced in various arid regions usually have high or very high protein content.

   

  It has been shown that under irrigated conditions, the yield of wheat increases significantly and the starch content of the seeds increases; however, the protein content decreases. To increase grain yield without reducing its protein content, additional nitrogen fertilizer must be applied under irrigated conditions.

   

  D. affects field tillage practices and the quality of sowing and harvesting.

  For example, using machinery to harvest potatoes in a dry and cloddy soil state will result in collisions between potatoes and clods, causing damage to potatoes.

   Soil moisture has such an obvious impact on crops, so the use of soil moisture sensor to do a good job of monitoring soil moisture is naturally very important.