Jual` Soil Tester Takemura DM-5

Relations between Farm Produce and Soil

To Make the soil ideal for absorbing fertilizers it is necessary to neutralize the soil by compounding neutralizer agents as lime, etc. However, should lime or other. However, should lime or other property be sprayed in too large quantities, it causes what we call "dearth of manganese" with the end result that the sol itself entirely loses its proper property as "soil fertilizer"

In case of spraying lime on the soil, it is most advisable that the soil's hydrogen ion, or pH be detected first to determine the appropriate quantity of lime needed for neutralization. To this end it is recommended to use this sample soil pH tester, for on-the-spot pH detection use. Users never fail to be satisfied with the results.

By neutralization it means that the soil is made into a condition of pH7 in terms of hydrogen ion content, but pH7 does not always mean the best condition. The optimum pH index is more or less different according to the produce involved, and the respective optimum pH indexes by produce are as per the following tabulation :

Chart No.1

List of Optimum pH Index for Some Farm Produces :
pH  7-8	Barley, Spinach, Sugar Beet, Ground-Nuts, Onion, etc
pH  6-7.5	Rye, Wheat, Peas, Sweet Potato, Turnip, Clover, Egg-Plant, Burdock, Tobacco, etc
pH  5.5-7	Soya Bean, Rape (cole), Red Bean, Radish, Carrot, Tomato, Corn, etc
pH  5-6.5	Rice-Plant, Dry-Land Rice, Potato, Taro, etc

To judge f the proper quantity of lime has been sprayed for neutralization, detection is required to be made about a week after the lime spraying. Volume of lime to be sprayed for neutralization varies according to quality of the soil involved.

Chart No.2

The quantity of lime needed to raise, by one unit pH index of soil toward Alkali side or Alkalization (10,700 square feet (990 square meters of 1/4 acre))

Nature of        Soil	In case of       Weak Humus	In case of      Medium Humus	In case of         Rich Humus
Sandy Soil	64 kgs. (140 lbs)	128 kgs. (280 lbs)	200 kgs. (440 lbs)
Minute Soil	95 kgs. (210 lbs)	188 kgs. (415 lbs)	290 kgs. (640 lbs)
Sand Soil	188 kgs. (415 lbs)	315 kgs. (700 lbs)	450 kgs. (1,000 lbs)
Medium Soil	315 kgs. (700 lbs)	375 kgs. (825 lbs)	469 kgs. (1,030 lbs)
Sticky Soil	375 kgs. (825 lbs)	469 kgs. (1,030 lbs)	533 kgs. (1,170 lbs)
Humus soil in case humus volume is 15% up:                                                  abt. 450 kgs. (1,000 lbs) - 900 kgs. (2,000 lbs)

Features

1. Being of electric generation system with the earth. no chemical, distilled water, and/or electric power such as storage battery, etc. is  needed.
2. Measuring is most simple, the desired pH index being shown by merely inserting the meter into soil.
3. The quantity of lime to be applied is readily ascertained.
4. Compact in size, elegant in style and handy to carry.

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