Papers relating to the service of Cyril John Watson, 1941-1945 - Part 16

April [[?]]

Aya mana janja [[?]] [[?]]

N.B. U.S [[?]]

EXTRACTS FROM SOILLESS GROWTH

of PLANTS by Ellis & [[Sweeney?]] (April '38)

NUTRIENT FORMULAS

Stock Solution A - (BMZ solutions) 

In 1/2 gallon of water are [[?]]

slowly disolved 3-2 grams (1 teaspoon)

each of boric acid (H₂30_{2 )} managanese

sulphate (Z_NSO₂ - 7H₂O) and zinc

sulphate (M_MSO₄ - 7H₂O) and zinc

sulphate( Z_N SO₄ - 7H₂O).To this

solutions 1/2 teaspoon of copper

sulphate (C₂SO_{4 -} 5H₂O) is added if

desired. This solution may be

added to culture solutions at any

time before use.

ideas for cultivation - [Strawberries], [[?]]

lettuce, [[?]], [[?]] [[?]] [[butter beans?]], [[chillies?]],

[[?]], [[?]],[[?]], passionfrui [[?]]

[[?]] [[?]] [[?]]

Thick Solution B

Dissolve 0.8 gm [[?]] of [[?]]

[[?]] chloride [[?]] as nitrate

(F₂ (NO₃ )₂ ) in 1 pint water

Ferrous sulphate 

( F_eSO₄ - 7H₂O ) may be

used as course of iron but has

greater tendency to precipitate [[?]]

solutions. Stock solution B should

only be added immediately before use.

[Increasing} any of sulphate solutions

described Stock Sol. A may be

added in proportion of 10 cc (2 tspns)

to each 5 gals of [[?]] solution
if pure chemicals are used or in
proportions of 5 cc (1 tspn) to each

5 gal if commercial grade chemicals 

are used.

[[?]] with  [[?]] [[?]] [[?]]

or similar material may proved interesting 

Stock Solution B should be

added to  culture solutions just

before use in propⁿ of 20cc (4tspn)

of B to each 1 gal if sulphate mixture

Under conditions (bright days) [[more?]]

may be used fast, if signs of cold

[[?]] additional maybe added.

FORMULA 1 Fertilising soil for [[?]] [[?]]

[[?]] [[?]] (K_¹H₂PO₄) 

5.9gms / 5 gals. (1^{1/4tspns/5 gals (approx)}

^{CALCIUM NITRATE [[?]]}

^{20.1 gms/5 gal - 4 tspns/5 gals}

^{MAGNESIUM SULPHATE (MgSO₄ - 7H₂O)}

^{10.7 gm/ 5 gal - 2 1/2 tsp / 1 gal}

^{AMMONIUM SULPHATE ( DRY) (( 1HH₄ -) SO₄)}

^{1.8 gm/5 gal - 5 tspns/5 gal}

[[?]] of these chemicals is [[?]]

separately 

to be transcribed 

Formulas l,ll & lll have produced good

results with vegetables and flowers

FORMULAS lV, V, Vl -

table

to be completed

If growth tends to be a little

soft, the concentrations of salts

may be increased, or even doubled

If desired, in these 3 formulas,

[trace] elements may be used, but

not in full quantities

HYDROPONICS Plants can be grown

in sand, [[?]], [[glass?]] [[?]], [wood],[[?]] [[?]]Sand can be boiled for

15-20 mins to  render bacteria free.

AVOID metal containers, galvanised

piping, wire baskets, [[?]]

Rubber & glass preferable these

to be soaked with PETROLEUM [[ASTH?]]

avoid coal [[?]]

DO change solutions regularly -

spray leaves and around roots.

LOOK TO [mentions] of coats &

solutions Pump [[?]] through

solution

[[?]] [[?]] be arranged with

capillary glass syphons or

lamp with [[?]]

Wire baskets packed with

cotton wool with solution up

to the [[?]] jar [x]

hook to 

to be completed