As a result of its simple manufacturing process, high specific surface area, and superior adsorption characteristics, it is considered one of the cheapest and readily available moisture
absorbents across the globe and finds extensive use as an adsorbent and a desiccant.
Today this article may seem too simplistic an explanation of basic irrigation concepts -- field capacity, permanent wilting point, readily available moisture
Without available moisture
in the soil, the activities of beneficial soil organisms cease, plants cannot properly develop leaf and flower buds, all normal growth functions are impaired, and plants go into the winter in a weakened condition.
The time course of percentage of available moisture
upto the soil depth of 60 cm was studied at the chosen growth stages in the drip fertigated treatments and the data furnished in Table 1.
What's forming these tracks is the salt in the soil absorbing any available moisture
in the air, a process known as deliquescence.
This map shows regions that are potentially susceptible to dengue, based on 18 climatic and environmental variables such as temperature and available moisture
The authors write, "Although GCMs predict that temperatures will rise virtually everywhere on Earth over the next century, future fire occurrence appears to primarily be a function of the available moisture
in many areas.
Moreover, farmers are advised to prepare land especially of rain-fed areas on time for the sowing of coming Rabi crops especially wheat to minimize the loss in yield due to late sowing and to properly utilize the available moisture
due to recent rains occurred.
Plant foliage also acts like a 'wick' sucking up all available moisture
from the root ball and surrounding soil, which explains why when unearthing a failed plant the root ball can be found to have the consistency of concrete.
When it comes to purchasing plants, knowing what type of garden you have in terms of shade, sun, available moisture
, soil PH, and fertility will help you to choose plants tailored to your needs.
This will make it easier for the soil to hang on to any available moisture
for that bit longer.
You also say that you do not water until the ground is dry, but tomatoes require steady available moisture