# intensive day

Powerful Essays
2425 Words
Grammar
Plagiarism
Writing
Score
intensive day
Study Questions: 1.) Why is sub-soiling needed in soils with hard pans?

Sub-soiling is essential especially to hard pan layer because it will help the roots penetrate deep and be able to explore and obtain water and nutrients from larger volume of soil. Hard span obstructs root's downward proliferation and restricts root growth of crops (of crops that have vertical root growth). With sub-soiling, the needed soil depth, at least 80cm will be met . With sub-soiling, we can break hard pan without inversion and with less disturbance of top soil.

2.) Show that a triangular system has 15% more plants than a square system using the same distance of planting by computing the number of plants in each system.

If we give certain values for the Area (A) and planting distance (s) as A = 1 000m2 and s = 5 m 2 then substituting these values to the respective formulas for number of plants in each system we will have the following:

For Triangular System: Triangular System= S/d2 x 0.866
S= Unit surface d= length of the triangle side No. of plants (Np) = A/(s 2x 0.866) = 1 000 m2/(5 m2x 0.866) = 1 000 m 2/4.33 m 2 ≈231 plants

For Square System: S/L2 No. of plants (Np) = A/s2 = 1 000 m2/5 m2 =200 plants231 plants –200 plants = 31 plants(31 plants/ 200 plants) x 100% ≈15%

Based on computation, there were 15% more plants in the triangular system than the square system.

3.) Why should we add well decayed organic matter and basal fertilizer to the soil before transplanting seedlings or grafted plants of perennial crop species?

Because organic matter is closely linked to plant productivity. In case the soil does not contain the nutrients that the crops needed especially seedlings and grafted plants of perennial crop species, the organic matter and fertilizer that were mixed with the soil will immediately fill the need of starting-to-grow crops. Consequently, landscapes with variable organic matter

## You May Also Find These Documents Helpful

• Good Essays

Purpose: The purpose of this lab was to be able to understand the importance of differing soil and to be able to determine the type of soil that was given. This would also help in understanding each type of soil and the nutrients and water that it is able to hold.…

• 717 Words
• 3 Pages
Good Essays
• Satisfactory Essays

This had been accomplished by taking three groups of plants and placing them next to one another. Each group contains two plants. Each one would be watered with a different amount of water. They would then be measured how much they grew. The growth of the three plants was compared.…

• 290 Words
• 2 Pages
Satisfactory Essays
• Good Essays

Water *Variables CONTROLLED VARIABLES: Soil Pechay plant (size) Size of plant pots Location with sunlight…

• 644 Words
• 5 Pages
Good Essays
• Powerful Essays

d. (1) is Net; (2) is Net 4. An irrigation system applies a gross amount of 42 inches of water during the growing season. An evaluation determines that: 27 inches goes to satify crop ET; 9 inches runs off and is not collected for reuse; 3 inches passes through the root zone as deep percolation (total), of which 3 inches are beneficial leaching for salt removal; and 1 inch is ET from weeds. What is the irrigation efficiency (%)?…

• 2728 Words
• 13 Pages
Powerful Essays
• Powerful Essays

AP Biology 10 June 2012 Abstract: In this experiment, 8 plants will be tested. Each except one plant (which will be the control group) will receive a certain amount of water starting at 0 teaspoons of water. Each plant will receive 1 more teaspoon than the previous cup, so it would be increasing. For example, cup 4 will have 4 teaspoons of water and cup 3 would have 3. The data recorded will be the length the plant grows up to.…

• 1036 Words
• 5 Pages
Powerful Essays
• Good Essays

Figure 2 has three symbols which are for planting densities of 10, 30 and 79 thousand plt/ha. Convert these numbers to plt/ac. I used 2.47 as my conversion of ha to acre…

• 370 Words
• 2 Pages
Good Essays
• Good Essays

Smartie Lab Analysis: The total area of my ecosystem was six feet, but the area we sampled was four feet. We had six types of each smartie: 4 green, 5 orange, 10 purple, 7 red, 5 white, and 14 yellow. In our sampled area we had 3 green, 0 orange, 5 purple, 2 red, 0 white, and 7 yellow. We had 4.25 organisms per total area that was the density. Our relative density was 8.88% green, 11.11% orange, 22.22% purple, 15.55% red, 11.11% white, and 3.45% yellow. The frequency of each organism was 75% green, 0% orange, 50% purple, 25% red, 0% white, and 75% yellow. The relative frequency of each organism was 33% green, 0% orange, 22% purple, 11% red, 0% white, and 33% green. The coverage of each type of organism was 18.83%. The importance value of each organism was 34.24 for green, 9.98 for orange, 30.35 for purple, 19.79 for red, 9.98 for white, and 32.43 for yellow. The rank of my organism’s importance from highest to lowest is: green, yellow, purple, red, then white and orange. My population estimate for part II is 11.66 yellow smarties. My % error for population estimate is 16.71%. We used a line transect for this lab, and I think most of these calculations could be more applied to plants, since they are stationary and do not move, like smarties, which do not move. This is more difficult to compare to animals since animals move, and may react to being captured and recaptured.…

• 513 Words
• 3 Pages
Good Essays
• Good Essays

22) A rose garden has 16 bushes in one row, 13 bushes in the next row, then 10, and so on. If there are 51 bushes in the garden, in how many rows are they planted?…

• 419 Words
• 2 Pages
Good Essays
• Satisfactory Essays

6 Green 2 1.1 3 Blue 19 14 12 Violet 16 11 8 Reminder: (Plant 1 height + Plant 2 height + Plant 3 height) / 3 = Average height…

• 683 Words
• 4 Pages
Satisfactory Essays
• Good Essays

(i) Calculate the percentage of the energy reaching the producers that is converted to growth in the producers. Show your working.…

• 760 Words
• 4 Pages
Good Essays
• Good Essays

Materials and Methods: Part A- Materials furnished are containers of green and albino seedlings. Count the number of green and albino seedlings, and add total number of seedlings. Then Calculate the ratio of green to albino seedlings.(stallsmith)…

• 810 Words
• 4 Pages
Good Essays
• Satisfactory Essays

Please notice the attached page for the data of each seed. In the Petri dish labeled “hollycock”, Experiment Group A. the group tested a total number of twenty (20) radish seeds (Raphanus sativus), out of the twenty (20) seeds, there was only a twenty-five (25) percent of germination, and only five (5) seeds had actually germinated. The length of each seed varied in lengths from the shortest, three (3) millimeters to the longest fourteen (14) millimeters. Each length of all twenty (20) seedlings were added up and divided by twenty (20) and the group averaged 2.7 millimeters in length of the germinated seedlings. In the second Petri dish labeled “control”, Experiment Group B, out of the twenty (20) radish seeds tested with just distilled water, a percentage of eighty-five (85) percent of successful germination, and the actual number was seventeen (17) actually germinated. The length of these seeds varied in sized from the shortest of seven (7) millimeters to the longest of ninety-two (92) millimeters. Each length of all germinated seeds from the controlled group were added up and then divided by twenty (20) and the average length of the germinated seedlings is 19.35…

• 904 Words
• 4 Pages
Satisfactory Essays
• Good Essays

The differences in the soil content are also clear. The total percent of water held in the A-1 horizon of the soil on the Beech side, is approximately 6% more…

• 1296 Words
• 6 Pages
Good Essays
• Good Essays

Experimental Design: There were three equal sized pots, filled with the same amount of top soil and an…

• 778 Words
• 3 Pages
Good Essays
• Good Essays

Organic agriculture is an ecological production management system that promotes and enhances biodiversity, biological cycles and soil biological activity. It is based on minimal use of off-farm inputs and…

• 691 Words
• 3 Pages
Good Essays