1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
AlladinOne [14]
3 years ago
15

Effects of harrowing in the environment​

Geography
2 answers:
Anna [14]3 years ago
7 0

Answer:

To assess the effects of timing and frequency of weed harrowing on weed abundance and crop yield, different pre- and post-emergence weed harrowing sequences were applied to spring cereals and peas in field experiments performed during 2003 and 2004 in Sweden. Post-emergence harrowing was performed at crop growth stages 2–3 and 5–6 true leaves respectively. The best weed control was obtained by a combination of pre- and post-emergence harrowing, but these treatments also caused yield losses of 12–14% in spring cereals, while no yield losses were observed in peas.

Studentka2010 [4]3 years ago
5 0

Answer:

light and air pollution

Explanation:

i don't know what I can explain

You might be interested in
Which step can you take toward committing to your career path
nataly862011 [7]
Committing and trying to pursue for it by taking classes
7 0
3 years ago
Which planet type tends to have few or no satellites?
malfutka [58]

Answer:

Terrestrial planets

Explanation:

There are two types of planets:

  1. The inner planets or terrestrial planets
  2. The outer planets or Jovian planets.

The outer planets are gas giants and are made of huge mounds of gases. These planets are Jupiter, Neptune, Uranus and Saturn. They all have satellites revolving round them.

The terrestrial planets are small rock masses. They are mercury, venus, earth and mars. Earth has one satellites and Mars has two satellites.

The asteroid belt seperates the Jovian and terrestrial planets. Beyond the Jovian planets lies the Kuiper Belt Objects or KBOs.

4 0
3 years ago
Mention three important man made elements of environment ​
SVETLANKA909090 [29]

Answer:

Constituents of Environment

# Physical elements constitute space, landforms, water-bodies, climate, soils, rocks, and minerals. ...

# Biological elements include plants, animals, micro-organisms, and man.

# Cultural elements include economic, social and political conditions which are largely man-made features.

Explanation:

Brainliest please

5 0
3 years ago
According to the text, one of the following items contributed to the growth of the Southeast. Which item was it?
adelina 88 [10]

E. indoor plumbing

because this comes in agriculture wich hellped southeast development

7 0
3 years ago
A large stream of moving water that flows through the ocean is called
Scorpion4ik [409]
It is called surface currents.

6 0
3 years ago
Read 2 more answers
Other questions:
  • The main physical characteristic affecting North Africa and Southwest Asia's settlement patterns is _____.
    15·2 answers
  • The intensity of radiation from the sun allows water to cycle between liquid and vapor, which is a dynamic process of earth call
    12·2 answers
  • Which of these fields is the best example of what physical geographers study?
    11·2 answers
  • In a reverse fault, where does the hanging wall move relative to the footwall?
    14·2 answers
  • In the area of high elevation, what is the bedrock type and age (geological period in which it was formed)?
    11·1 answer
  • The asthenosphere and lithosphere are parts of Earth’s
    12·1 answer
  • Which of the following is not a disadvantage of using wind power?
    14·2 answers
  • Areas with cultural differences can have factors that
    7·1 answer
  • Air Mass thunderstorms: Select one: a. are triggered primarily by fronts. b. tend to occur in environments where the winds do no
    15·1 answer
  • 2. How does the study of fossils support the theory of evolution?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!