Date:08/06/2022
For this project we read blog of Arpita di, Aasawari di and Pradnya di
INTRODUCTION:
Soil organic carbon is a measureable component of soil organic matter. It has an important role in the physical, chemical and biological function of agricultural soils. Organic carbon influences many soil characteristics including nutrient and water holding capacity, nutrient cycling and stability, improved water infiltration and aeration.
Water Holding Capacity is the ability of a certain soil texture to physically hold water against the force of gravity. It is important to know the water holding capacity of the soil to determine how much water storage capacity the field has, and to determine how much supplemental irrigation should be applied.
OBJECTIVES:
1) To study the effect of organic carbon on water holding capacity of soil.
2) To study the effect of organic on crop yield.
NEED OF PROJECT:
The organic carbon of soil is decreased leading to low microbes in soil which causes high demand of fertilizers and low water holding capacity of soil. Hence, the demand of water is increased leading to higher pollution and ecological imbalance.
Hence, use of organic carbon in field will be beneficial to farmers.
Date:09/06/2022
REPREPARATION OF BED AND CLEAN THE BED:

The experiment is to be carried out in beds of 2*2ft. Total 9 beds were prepared of red soil, black soil and VA soil. Totally 27 beds were prepared. The beds were already prepared by Arpita di. Some unwanted grass is grown on that bed, so first I clean up all the beds and free the soil in bed with the help of khurpi. Arrange soil in the bed in proper way.
Date:10/06/2022
TYING OF SHADENET:
The shadenet is already tied by Arpita di but it takes many duration that’s why it’s not in proper condition. So I release it all and again tie the shadenet to bamboo and rod.
SOWING:
After cleaning the beds and arranging the soil, sowing of spinach seeds is done with the help of khurpi at the spacing of 15*15 cm. Four seed were dug in each hole.


Date:11/06/2022
DETERMINATION OF WATER HOLDING CAPACITY OF RED SOIL
PROCEDURE:
- 100 gm of dry sample was taken.
- The funnel was set with filter paper on measuring cylinder.
- The sample was added on the filter paper. Then 200 ml water was added into the sample.
- The sample was kept for 20 minutes and the reading of water retained in measuring cylinder was taken.
- Then the water holding capacity of soil was determined by using following formula.
Water holding capacity =
{(Total water added – Water retained in measuring cylinder) / Dry weight of sample} * 100
OBSERVATION:
1.Weight of soil= 100gm
2.Total water added= 200ml
3. Water remained in the measuring cylinder= 150ml
CALCULATIONS:
Water holding capacity of red soil
={(200-150)/100}*100
=50%


DETERMINATION OF WATER HOLDING CAPACITY OF BLACK SOIL
PROCEDURE:
- 100 gm of dry sample was taken.
- The funnel was set with filter paper on measuring cylinder.
- The sample was added on the filter paper. Then 200 ml water was added into the sample.
- The sample was kept for 20 minutes and the reading of water retained in measuring cylinder was taken.
- Then the water holding capacity of soil was determined by using following formula.
Water holding capacity =
{(Total water added – Water retained in measuring cylinder) / Dry weight of sample} * 100
OBSERVATION:
1.Weight of soil= 100gm
2.Total water added= 200ml
3.Water remained in the measuring cylinder= 115ml
CALCULATIONS:
Water holding capacity of black soil
={(200-115)/100}*100
=85%
DETERMINATION OF WATER HOLDING CAPACITY OF VA SOIL
PROCEDURE:
- 100 gm of dry sample was taken.
- The funnel was set with filter paper on measuring cylinder.
- The sample was added on the filter paper. Then 200 ml water was added into the sample.
- The sample was kept for 20 minutes and the reading of water retained in measuring cylinder was taken.
- Then the water holding capacity of soil was determined by using following formula.
Water holding capacity =
{(Total water added – Water retained in measuring cylinder) / Dry weight of sample} * 100
OBSERVATION:
1.Weight of soil= 100gm
2.Total water added= 200ml
3.Water remained in the measuring cylinder= 170ml
CALCULATIONS:
Water holding capacity of VA soil
={(200-170)/100}*100
=30%
Date:11/06/2022 to 25/06/2022



WATER APPLICATION TO SPINACH BEDS:
d a t e | Black Soil 1st bed | black Soil 2nd bed | Black Soil 3rd bed | Red Soil 4th bed | Red Soil 5th bed | Red Soil 6th bed | VA Soil 7th bed | VA Soil 8th bed | VA Soil 9th bed | VA Soil 10th bed | VA Soil 11th bed | VA Soil 12th bed | VA soil 13th bed | VA soil 14th bed | VA soil 15th bed | Red soil 16th bed | Red soil 17th bed | Red soil 18th bed | Red soil 19th bed | Red soil 20th bed | Red soil 21th bed | Black soil 22th bed | Black soil 23th bed | Black soil 24th bed | Black soil 25th bed | Black soil 26th bed | Black soil 27th bed | Total water in litre |
11/06 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 108 |
12/06 | 3.50 | 3.50 | 3.50 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3.50 | 3.50 | 4 | 4 | 4 | 4 | 105.5 |
13/06 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 51.3 |
15/06 | 3 | 3 | 3 | 2 | 2 | 2 | 2.50 | 2.50 | 2.50 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 73.5 |
16/06 | 4 | 3 | 3 | 3 | 3 | 3 | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 3 | 3 | 3 | 3 | 3 | 3 | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 2.50 | 74.5 |
17/06 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 81 |
18/06 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 54 |
19/06 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 69 |
20/06 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 75 |
22/06 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 75.6 |
23/06 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 248.4 |
24/06 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 132.3 |
25/06 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 78.3 |
Date:13/06/2022
According To Sonal mam instruction, I clean some hoops around the soil laboratory for planting some plants.
Date:14/06/2022
At that day, I have seen that some dogs disturbed our soil bed by digging out the soil in the bed. This is considered as external factor.

Date:26/06/2022
Spinach seeds in some beds are seen to be germinated.

Date:27/06/2022
Due to time limit, we are not able to take final reading as spinach growth is not completed.