Science Links Japan | Selection of a Suitable Soil for Raising Tea Seedlings in Paper pots and The Method of Preventing Soil collapse from The Pot Bottom.

Selection of a Suitable Soil for Raising Tea Seedlings in Paper pots and The Method of Preventing Soil collapse from The Pot Bottom.

Accession number;02A0511922

Title;Selection of a Suitable Soil for Raising Tea Seedlings in Paper pots and The Method of Preventing Soil collapse from The Pot Bottom.

Author; FUCHI MICHINORI (Kenhokunogyokairyofukyuse) KOGA RYOTA (Nagasaki Agric. and For. Exp. Stn.) MORIYAMA SHINZABURO (Gotonogyokairyofukyuse)

Journal Title;Bulletin of the Nagasaki Agricultural & Forestry Experiment Station. Sect of Agriculture. Sect of Agriculture

Journal Code:Z0543A

ISSN:0388-8398

VOL.;NO.28;PAGE.19-31(2002)

Figure&Table&Reference;FIG.11, TBL.12, REF.14

Pub. Country;Japan

Language;Japanese

Abstract;1) Since growth of tea seedlings is more affected by soil pH value rather than by soil type, it is more appropriate to use soil having a pH value of from 4.2 to 4.5 for raising tea seedlings in paper pots. The soil pH value can be controlled by blending the soil with Peat-moulds at an adequate ratio, though the lower limit of the ratio by volume of Peat-moulds is 50%. By blending Peat-moulds, the paper pot weight can be reduced, which makes it possible to save labor in fix planting. 2) In raising tea seedlings in 6.4cm paper pots, the problem of soil collapse from the pot bottom occurring in the fix planting step can be prevented by using 5cm rock wool cubes. In this method, 5cm rock wool cubes are preliminarily packed into the bottom of pots. Then, soil is poured into the pots and rooted cuttings are put into the soil. Subsequently, these tea seedlings are taken and grown in the paper pots packed with the soil and the rock wool cubes similarly as in the case of the conventional method of raising tea seedling in paper pots packed with the soil alone. After fix planting, the seedlings grown in the paper pots packed with the soil and the rock wool cubes are superior in the growth of the above-ground part to the tea seedlings grown in the paper pots packed with the soil alone. Namely, the roots of the former seedlings are vertically extended along the pots and show uniform growth until fix planting. Based on these facts, it is considered that this method for preventing soil collapse is one of important factors for improving the growth after fix planting. 3) In raising tea seedlings in paper pots, the paper pot weight can be reduced 30% by blending Peat-moulds, and as well as by rock wool cubes packed into the bottom of pots. 4) Time to pack with the soil is shortened as half as in the case of the paper pots packed with the soil alone by using the paper pots packed with the rock wool cubes.... (author abst.)

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