農業工程學報　第43卷第4期 Journal of Chinese Agricultural Engineering

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陨房武
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1 60 1 Journal of Taiwan Agricultural Engineering Vol. 60, No. 1, March 2014 A Study on Rice Yield and Water Saving Efficiency for Irrigation Management Practice * Ching-Tien Chen Yu-Chuan Chang Chen-Tung Hung ~11 7 (tiller stage)(blooming stage) 100% 80% (ky) 100% 7 14%~7.4% Ky Ky ABSTRACT Drought is a natural and inevitable event. Due to recent climate variation, the * ctchen@mail.ncyu.edu.tw 81

2 frequency and severity of drought has been increased. How to establish irrigation management process to reduce the impact on agriculture production has become the primary issue for agriculture water resource manager. The purpose of this research is to discover the relationship between the productivity of paddy rice and different irrigation ration controls during tiller stage and blooming stage by field experiment (from February 2003 to November 2003) at irrigation center in Chia-Nan Irrigation Association. The goal is to attain the degree of drought tolerance and the optimum irrigation timing and interval of paddy rice without compromising on yield. This information will lead to the minimum water requirements under different drought conditions, accompanied with the crop yield response factor (Ky). These requirements can also serve as the foundation for the irrigation bureau to implement a feasible irrigation ration policy. The results indicate that, considering the yield and water saving for irrigation, with 100% irrigation depth and 7days rotation irrigation interval for first and second paddy rice in blooming stage, irrigation water can be saved for about 14%~7.4% but the yield is only slightly influenced. The Ky value of blooming stage is higher than that of tiller stage, implying that the water supply at blooming stage has higher priority than that of at tiller stage in irrigation. Keywords: Paddy Rice, Rotation Irrigation Interval, Drought, Yield Response Factor. (1961) ( 45 mm) (1983) (1990) (1996) (2002) Moutonnet (2001) Yesim and Yuksel (2003) 82

3 Belder et al. (2004) Nueva Ecija Uphoff (1999) SRI (The System of Rice Intensification SRI)(Environment Friendly) SRI McDonald et al (2006) 40 SRI SRI Moser Barett (2003) () SRI SRI SRI (tiller stage)(blooming stage) (100% 80%) (71013 ) (ky) 2.1 (ky) 稉 (2313' N, 12011' E) m 10 km mm/day %~69.3% 20.7%~29.6% 7.4%~11.4% 2.64~ %~25.1% (Lysimeter) 15 ( 5 3 ) 83

4 1 T 12 T 11 T 13 T 22 T 21 T 23 B 22 B 23 B 21 B 13 B 12 B 11 T(tiller stage) B(blooming stage) T jk j k B jk j k j = 1~2 100% 80% k = 1~ (1996) 100% 80% ( ) cm 20 cm ( 1977) 45 mm (100%) 36 mm (80%) () (Ky) (Randomized Complete Block Designs) () = 5% (%) (%) (%) Y i Ri 1 100%... (1) Ya R i (%) Y i (Kg/ha) Y a ( )(Kg/ha) ()(%) (%) 84

5 85

6 4 () (kg/ha) (%) (m 3 /ha) (%) (kg/ha) (%) (m 3 /ha) - - 8,232-12,790-5,182-11, % 80% 100% 80% (%) 7 6, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , FIR i Si 1 100%...(2) FIR a S i (%) FIR i (m 3 /ha) FIR a ()(m 3 /ha) Ky) K y Y a 1 Y m ET 1 ET a m... (3) K y Y a Kg/ha Y m Kg/ha ET a mm/day ET m mm/day (Ky) (Sammis, 1981; Abdul-Jabbar, et al., 1982) (Al-Jamal, et al., 2000) () () ETa < ETm (yield response factor, Ky 5 6 Ky ~ ~ Ky

7 () 1 2 () 8,232 kg/ha 5,182 kg/ha () 100% 80% % 7 ( 1 2 ) 14%~7.4%( 4 ) %~20.3% 13.2%~19.2% % 25.3% 100% % % 44.9% 33% 87

8 3 4 46% 4 100% 80% % 25.3%36.3% 27.3%28.3%32.6% 38.9%43.7%51.4% 45.1%50.1% 55.1% 7.5%13.2%19.3% 11.5% 16.4%18.6% 14.0%20.3% 23.4% 17.7%22.8%25.8% 100% 7 14%~7.4% (1790 m 3 /ha~ 830 m 3 /ha) ( ) y = x x (R 2 = ) y = x x (R 2 = ) 4 y = x x (R 2 = 0.95) y = x x (R 2 = ) 3.3 (K y ) 5 6 (Ky) r Ky r Ky 88

9 5 Ky 1. () % 7 14%~7.4% (1790 m 3 /ha~830 m 3 /ha) Ky 6 Ky % % 55.1% 44.9% 33 46% 6. (SRI) 1. 89

10 32(1)pp (4)pp () pp Abdul-Jabbar, A. S., Sammis, T. W., Lugg, D. G., Effect of moisture level on the root pattern of alfalfa, Irrigation Science. Vol. 3, pp , Al-Jamal, M. S., Sammis, T. W., Ball, S., Smeal, D., Computing the crop water production function for onion, Agricultural Water Management, Vol. 46, pp , Belder, P., Boumana, B. A. M., Cabangon, R., Guoan, Lu, Quilang, E. J. P., Yuanhua, Li., Spiertz, J. H. J, Tuong, T. P., Effect of water-saving irrigation on rice yield and water use in typical lowland conditions in Asia, Agricultural Water Management, Vol. 65, pp , Chang, Y. C., Kan, C. E., Chen, C. T., Enhancement of water storage capacity in wetland rice fields through deepwater management practice, Irrigation and Drainage, 56(1), pp , Moutonnet, P., Yield response factors of field crops to deficit irrigation International Atomic Energy Agency, Joint FAO/IAEA Division, Vienna, Austria, McDonald, AL., Hobbs PR, Riha SJ., Does the system of rice intensification outperform conventional best management? A synopsis of the empirical record, Agric Syst, 96, pp Moser, CM., Barett, CB., The disappointing adoption dynamics of a yield-increasing, low external-input technology: the case of SRI in Madagascar, Agric Syst, 76, pp Sammis, T. W., Agron, J., Yield of alfalfa and cotton as influenced by irrigation, Vol. 73, pp , Yesim, E., Yuksel, N., Yield response of watermelon to irrigation shortage, Sciatica Horticulture, Vol. 98, pp , Uphoff, N., Agroecological implications of the System of Rice Intensification (SRI) in Madagascar, Environment, Development and Sustainability, 1(3/4), pp ,

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Microsoft Word - 陳清田-body.doc 63 2 Journal of Taiwan Agricultural Engineering 106 6 Vol. 63, No. 2, June 2017 The Effects of Irrigation Management Practice on Growth Period and Irrigation Water Use Efficiency in Paddy Rice * Yi-Ju

農業工程學報 第43卷第4期 Journal of Chinese Agricultural Engineering

農業工程學報　第43卷第4期 Journal of Chinese Agricultural Engineering