soil type

1. Water and soil air ( 25 & 25 = 50%)

- Water & air in land;ground each other change its existence [of] shg have the character of dinamik - Function ground water to process pertumb of tnm:

a. To uphold body of tnm, maintaining turgor in cell of shg do not weaken lunglai.

b. Utk assimilate charcoal oxygen ( CO2)

6 CO2 + 6 H2O C6H12O6 + 6 O2 + 674 calorie gr of energi SM & Chlorophyl.

c. Dissolving food zat2 of dlm land;ground of shg absorbent [by] dpt [of] tnm.

d. Transport result of assimilation to cell of bag tnm.

e. Making cool body of tnm & land;ground.

Clammy [of] soil of yg available to crop [is] capillary clammy ( pF 2,7-4,2).

Way of maintaining is clammy [of] capillary land;ground [of] adl:

a. Fertilization of organic: compost, cage manure, as anxious as dsb.

b. Scarifiing time tnh of ms drought, dpt krn decide capillaryly [of] tnh, evaporation shg decrease.

c. Mulsa, utk pursue evaporation.

d. Sprinkler ( morning or evening), if noon:

- water of siraman leaf pd nempel yg become focus of SM, high temperature shg & burnt, and also hinder leaf of utk fotosintesa - perub of sudden temperature, physiological trouble.

- happened heat drenching of yg boost up temperature of tnh.

2. Organic materials [of] land;ground ( 5%)

- coming from plant network ( root, batanh, stick, leaf, animal, microorganism, dirt of dsb - network formation of tumb:

- 50-75% water.

- 10-30% C.

- 10% O2 ( oxygen)

- 2% H ( hydrogen)

- 2% ash ( P, K, Ca, Mg, Fe, Zn. Mn Dsb)