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研究生:陳啟烈
研究生(外文):Chen, Qi-Lie
論文名稱:EPIC作物模式對臺灣作物輪作方式下作物產量預估之應用研究
論文名稱(外文):Applications of the crop growth model EPIC (Erosion-Productivity Impact Calculator) in predicting crop yields under crop rotation schemes in Taiwan
指導教授:洪崑煌洪崑煌引用關係
指導教授(外文):Hong, Kun-Huang
學位類別:碩士
校院名稱:國立臺灣大學
系所名稱:農業化學研究所
學門:農業科學學門
學類:農業化學類
論文種類:學術論文
論文出版年:1997
畢業學年度:85
語文別:中文
論文頁數:180
中文關鍵詞:作物生長模式輪作產量農業化學
外文關鍵詞:EPIC modelRotationYieldAGRICULTURECHEMISTRY
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Because of the changes in grain consumption of the public and
the impact due to the possibility of import of agricultural
product, traditional agriculture must transform in order to
survive. Promotion of paddy rice-upland field crop rotation
schemes is a necessary state of craft in the present
agricultural management. However, how to design the rotation
sequence and growth timing, etc. in order to obtain the optimal
combination, generally requires not only massive human and
financial resources but also long-term field trials. In
addition, during field trial, various (intrinsic and/or
extrinsic) factors can complicate the operation and cause the
effort fruitless. Thus, modeling crop growth can provide valid
references for the policy-making of cultivation. The crop
growth model EPIC (Erosion-Productivity Impact Calculator) is
capable of modeling the rotation of several crops and
calculating the growth and yield of individual crop.
Furthermore, field trials carried out in USA and France have
proved that EPIC is capable of estimating crop yields under crop
rotation schemes within acceptable margins. In this study, the
applicability of EPIC in predicting crop yields under crop
rotation schemes in Taiwan is investigated by adjusting some
crop parameters using data obtained from field trials. The
results are as follows:1. The growth and yield trends of rice
were very well reflected by EPIC in the trial fields of IL
(ILAN) and CY(CHIAYI).2. Annual optimal growth time for higher
yields for three crops, rice, soybean and corn are:a. Trial
field of CY: rice transplanting in early February for first
crop and in late July for second crop; corn sowing in late
September for Autumn crop; soybean sowing in early March for
Spring crop.b. Trial field of PT(PENGTUNG): rice transplanting
in early January for first crop and mid-June for second crop;
soybean seeding in early January for Spring crop; corn seeding
in early February for Spring crop and in mid- and late September
for Autumn crop.c. Trial field of IL: rice transplanting in
mid- and late March for first crop.3. Rotation sequence for
higher yields for rice, soybean and corn:PT (rice-soybean-corn);
CY (soybean-rice-corn); HL(HUALEN)(rice-rice).4. Application of
nitrogen fertilizer: 30% each for basal, first and second
dressings, remaining 10% for dressing at the panicle initiation
stage resulted in higher yield for rice. The optimal amounts of
N fertilizer were: 140 kg N/ha for first rice crop and 120 kg N/
ha for second crop in CY. Yields predicted by EPIC agreed
closely with the field trial data.It is concluded that EPIC is
applicable of predicting crop yields under crop rotation schemes
in Taiwan involving rice, soybean and corn. It can be used to
determine the optimal cropping periods, rotation sequence,
optimal amounts of N fertilizer and the splitting application
methods, and so it is useful in the agricultural policy-making.

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