Waaphasa (Soil Aeration): Why less water can mean healthier plants

At the heart of the Subhash Palekar Zero Budget Natural Farming (ZBNF) technique lies Waaphasa that is a crucial principle for healthy plant growth. But what exactly is Waaphasa, and how can it be achieved through proper water management? Let us take a closer look.

Compiled by: Smt. Raghavi Konekar, Ponda, Goa

1. What is Waaphasa?

Waaphasa describes a unique and ideal condition of the soil, one where the spaces between soil particles are not filled with liquid water, but instead contain a balanced mix of 50% water vapour and 50% air.

Contrary to what we often assume, plants do not primarily depend on direct water. Their roots absorb moisture in the form of vapour. At the same time, both the roots and the innumerable microorganisms living in the soil require a steady supply of air to survive and function effectively. For this reason, it is essential that the soil remains well-aerated rather than waterlogged.

The Waaphasa condition naturally fulfils both these requirements, that is, it provides moisture in the right form, while also allowing air to circulate freely within the soil.

In simple terms, this method does not focus on adding more and more water, but on maintaining just the right level of moisture in the soil, just enough to sustain life, without excess.

2. So where do plants absorb Waaphasa from?

The roots that actively absorb nutrients and Waaphasa are not found close to the base of the plant, as one might assume. Instead, they are spread out along the outer boundary of the shadow cast by the plant at around midday.

This understanding changes the way we water plants. Rather than pouring water near the base, it should be applied about 5–6 inches beyond the edge of this shadow. In doing so, the roots are able to access the required Waaphasa more effectively and it prevents excess moisture from collecting near the base, thereby reducing the risk of root rot and fungal infection.

3. How does proper water management increase yield?

When water is applied at about 6 inches from the base, the roots are naturally encouraged to grow outward in search of Waaphasa. This outward growth leads to a stronger and more extensive root system.

As the roots develop, they support the plant more effectively, resulting in a thicker and sturdier stem. The greater the girth of the stem, the more food produced by the leaves can be stored within it. This stored energy contributes to healthier growth and an increase in the number of branches.

Over time, these changes reflect in the overall productivity of the plant, leading to a natural and noticeable increase in yield.

4. How can we identify when plants need water?

Watering plants often becomes a part of our daily routine at home, we tend to give them water every day without much thought. However, watering should not be done out of habit, but with awareness. Instead of following a fixed schedule, it is important to observe both the plant and the soil to understand whether Waaphasa is actually present before watering.

A simple way to check this is by taking a small amount of soil in your hand and trying to form it into a ball. If it holds together, it means the soil has enough moisture, and watering is not required. With experience, this assessment becomes intuitive, and you will no longer need to check the soil each time.

At times, the plants themselves offer clear signs. Slight wilting at the tips can indicate that water is needed.

It is also important to remember that a plant’s water requirement changes with the seasons. During the monsoon months, the soil generally retains sufficient moisture, so additional watering is rarely necessary. In winter, when temperatures are lower, watering once every one or two days is usually adequate. In contrast, during the summer, plants require more regular watering.

With consistent observation and practice, these patterns become easier to recognise, allowing for more mindful and effective water management.

5. Additional guidelines for water management

a. The soil in pots or beds should be loose and well-drained. When preparing a pot, ensure there is a hole at the base, and place a piece of tile or stone over it. This allows excess water to drain out while preventing soil from escaping.

Next, add a layer of coconut husk, dry leaves, or similar material, followed by a smaller amount of soil, and then plant the sapling. If the roots do not have soil around them, the sapling should be planted directly in soil, not in dry leaves. If there is a clump of soil around the roots, dry leaves can be spread around it.

This method helps maintain proper drainage and prevents excess moisture from accumulating. If the soil is too sticky, mixing in some sand can improve its texture.

b. During the rainy season, keep an eye on your pots to ensure water is not collecting in them. If you notice any accumulation, simply tilt the pot and drain it out immediately to prevent damage to the roots.

c. The way the plants are watered also matters. Instead of using a strong stream from a hose, it is better to water gently using a watering can or a hose fitted with a shower head. This helps distribute water evenly without disturbing the soil.

You can even make a simple watering can at home, take an empty 5-litre plastic oil container and make 10 – 15 small holes in its lid.

d. Mulching plays a vital role in maintaining the Waaphasa condition. By covering the soil with organic material, moisture is retained more effectively. Therefore, proper mulching should always be ensured. (Mulching is covered in this article)

6. A water-efficient approach to sustainable farming during difficult times

We may not be able to create water, but we can certainly learn to use it wisely. With thoughtful water management, it is possible to cultivate crops successfully even when water is limited.

In the Subhash Palekar Zero Budget Natural Farming method, practices such as mulching and the formation of humus play a crucial role. They help draw moisture from the air and make it available to plant roots on a continuous basis. As a result, only about 10% of the plant’s total water requirement needs to be supplied externally.

This is what makes the Subhash Palekar Zero Budget Natural Farming technique powerful as it works in harmony with nature, conserving water while still supporting healthy growth. In times of water scarcity, it truly proves to be a “life-saving” approach.

(Compiled from articles based on the Subhash Palekar Natural Farming technique)