Soil sampling and Inventory and mapping: a GIS-aided approach

Question 1

Soil sampling materials needed

Answer 1

Hand trowel, Flaglets, pail, spade

Question 2

First procedure in soil sampling

Answer 2

Determine the center of the site from the map then locate it on the ground

Question 3

Second procedure in soil sampling

Answer 3

. Choose whether to use a ‘Z’ or an ‘X’ sampling pattern and mark the spots to be sampled with flaglets . Collect from nine square holes for the whole
area.

Question 4

Third procedure in soil sampling

Answer 4

Clean the upper soil surface off of debris and scrape a thin layer of the soil
afterwards.

Question 5

Fourth procedure in soil sampling

Answer 5

Sample to a depth of at least. Using a spade, cut a 1.5 cm thick slice from one
face of the hole then trim the sides off with a trowel or knife

Question 6

Fifth procedure in soil sampling

Answer 6

Mix the sub-samples thoroughly in a pail and obtain about 1kg of composite soil
sample

Question 7

Sixth procedure in soil sampling

Answer 7

SPREAD the composite soil in a dry place, or on a newspaper and clean off of roots and others foreign materials. AIR DRY at room temperature then pulverized using a wooden mallet. SIEVE afterwards

Question 8

0 - 1” and another at 1 - 6” depth

Answer 8

For cultivated crops and gardens

Question 9

upper 6” is satisfactory; remove plant residue

Answer 9

lawns and pastures

Question 10

2 samples should be submitted, one taken at 0 - 8” depth, the other at 8 - 16” (subsoil layer).

Answer 10

Tree and fruit crops

Question 11

Materials needed in soil analysis

Answer 11

Soil test kit, test tube, soil sample, test tube rack, lead stirrrer

Question 12

First procedure in soil analysis

Answer 12

Fill the test tubes with prepared soil sample up to the scratch mark

Question 13

Second Prcedure in soil analysis

Answer 13

Add the respective solutions for the different tests as directed.

Question 14

Material needed in Inventory and mapping: a GIS-aided approach

Answer 14

GPS, sighting compass, measuring tape, clipboard, pen, and data sheet

Question 15

First procedure in Inventory and mapping: a GIS-aided approach

Answer 15

Locate a reference point (RF) clear of obstructions from the canopy of approximately five meter in diameter

Question 16

Second procedure in Inventory and mapping: a GIS-aided approach

Answer 16

Take the coordinates of the RF using a handheld GPS and record the data

Question 17

Third procedure in Inventory and mapping: a GIS-aided approach

Answer 17

From the reference point RF, select a tree or point of interest (POI) in the stand where the line or strip will begin then get the bearing using a sighting compass and take note of the reading.

Question 18

Fourth procedure in Inventory and mapping: a GIS-aided approach

Answer 18

Determine the horizontal distance (HD) between the RF and the POI using a measuring tape and record the HD

Question 19

Fifth procedure in Inventory and mapping: a GIS-aided approach

Answer 19

Counter-check the fore bearing by determining the back bearing from the first POI to the RF using the sighting compass

Question 20

Sixth procedure in Inventory and mapping: a GIS-aided approach

Answer 20

Measure and record the bearing and HD of the subsequent trees along the strip
following the same procedure.

Question 21

7th procedure in Inventory and mapping: a GIS-aided approach

Answer 21

Calculate the coordinates by converting the bearing, HD and RF coordinates to
coordinate data.

Question 22

8th procedure in Inventory and mapping: a GIS-aided approach

Answer 22

Project the coordinate data using an appropriate GIS application and create a map

Question 23

Agrometeorological Station (AGROMET)

Answer 23

“gathers and provides on routine basis simultaneous meteorological and biological information. It is also responsible for the dissemination of agricultural meteorological advice, warning, forecast, bulletin and other important information needed by farmers

Question 24

A test which is estimated to be
around 97% less expensive than analytical testing

Answer 24

Soil test kit (stk)

Question 25

will provide an
approximation of pH, N, P, and K content

Answer 25

soil test kit