×

UPSC Courses

DNA banner

DAILY NEWS ANALYSIS

  • 30 December, 2023

  • 2 Min Read

E-Soil

Researchers have developed a new electronics soil that was found to increase the growth of barley seedlings by 50%.

  • It is a novel method of soilless gardening or hydroponics using an electrically conductive growing medium.
  • In hydroponic environments, eSoil is a low-power bioelectronics growth substrate that can electrically stimulate the root system and growth environment of plants.
  • This novel substrate is not only environmentally friendly, but also offers a low energy, safe alternative to previous methods that required high voltage and non-biodegradable materials.

eSoil is being derived from cellulose and a conductive polymer called PEDOT.

  • Working - When the roots of barley seedlings were electrically stimulated for 15 days, they showed a 50% increase in growth using eSoil.
  • In hydroponics, plants are grown without soil, requiring only water, nutrients and a substrate, something for their roots to attach to.

Hydroponics is the technique of growing plants using a water-based nutrient solution rather than soil, and can include an aggregate substrate, or growing media, such as vermiculite, coconut coir, or perlite.

  • This closed system allows water to be recirculated, ensuring that each seedling receives exactly the nutrients it needs.
  • As a result, very little water is used and all the nutrients remain in the system, something that is not possible with conventional farming.

Source:


Anti-Defection Law in India

The Supreme Court of India recently gave a final three-week deadline to the Telangana Assembly Speaker to decide pending disqualification petitions against defecting MLAs under the Anti-Defection Law. What is the Anti-Defection Law? The Anti-Defection Law was introduced through the 52nd Amendment (1985), which added the Tenth Schedule to the

Rat-Hole Mining

A major disaster unfolded in East Jaintia Hills, Meghalaya, when at least 18 workers died following an explosion in an illegally operating rat-hole coal mine. This incident highlights the continued prevalence of rat-hole mining despite bans imposed by the National Green Tribunal (NGT) and the Supreme Court of India. Rat-hole mining is driven

India’s Aviation Sector

India’s aviation sector has grown rapidly, becoming a major economic success story. However, regulatory oversight has not evolved at the same pace. Data-driven monitoring of fares and market behavior is essential to ensure fair competition, prevent market abuse, and shift from reactive crisis management to proactive regulation. Challen

Federalism in India

Recently, a high-level committee on Union–State relations submitted its first report to the Government of Tamil Nadu. The report examines the distribution of powers and responsibilities between the Union and the States, highlighting ongoing debates regarding the balance between central authority and state autonomy. This discussion is clos

India–UAE Economic Partnership

The relationship between India and the United Arab Emirates has evolved from a traditional energy-based partnership into a comprehensive economic and strategic relationship. Over the years, strong political trust, growing trade, and expanding investments have transformed bilateral ties into a diversified economic corridor. The economic partnership

DNA

22 Mar,2026

Toppers

Search By Date

Newsletter Subscription
SMS Alerts

Important Links

UPSC GS Mains Crash Course - RAW