Effect of Moisture, Nitrogen and Phosphate on Initial Growth and Shoot:Root Ratio of Cabbages Following Transplantation

Japan Agricultural Research Quarterly
ISSN 00213551
NII recode ID (NCID) AA0068709X
Full text

Cabbage transplants (Brassica oleracea var. capitata) nursed in cell trays are often unable to absorb sufficient soil moisture after field transplantation. To determine the optimal soil conditions necessary to enable transplants to adjust smoothly, we transplanted cabbage seedlings to pots containing soil of varying moisture and nutrient content. Plants in the moist experimental group (less than 1.7 pF-value) with fertilizer (200 mg N・L-1) showed an exponential increase in shoot dry weight (SDW). Observations revealed that plants in the dry group (2.8 pF-value), plants in the moist group (1.7 pF-value) without fertilizer, and plants in the relatively dry (2.4 pF-value) group with fertilizer showed significantly (P < 0.01) lower SDW at 6, 9, and 12 days, respectively, after transplanting as compared with the highest growth achieved. The nutrient levels of 80, 200 and 500 mg N・L-1, and 300, 1000 and 3000 mg P2O5・L-1 were also examined. Moisture and nitrogen levels had major impacts on total dry weight (TDW). It was also revealed that deficiency in either moisture or nitrogen restricted plant growth. For the less than 1.5 pF-value experimental group, the low nitrogen content tended to increase the root portion of TDW. To promote the growth of cabbage transplants in moist soil, it is important to keep the shoot portion of TDW high with sufficient nitrogen fertilizer.

Date of issued
Creator Megumu TAKAHASHI Yosuke YANAI Hidekazu SASAKI
Subject

phosphate

seedling

soil water content

transplant

Publisher Japan International Research Center for Agricultural Sciences
Available Online
NII resource type vocabulary Journal Article
Volume 51
Issue 3
spage 271
epage 277
DOI 10.6090/jarq.51.271
Rights Japan International Research Center for Agricultural Sciences
Relation : J-STAGE
Language eng

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