| Citation: |
WANG Xiaowei, RAN Cheng, ZHANG Siqi, et al. Comparations of rice yield compositions and material productions under different cultivation modes in soda saline-alkali rice area[J]. Journal of South China Agricultural University, 2019, 40(6): 45-50. DOI: 10.7671/j.issn.1001-411X.201812041
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To explore the differences in rice yield compositions and material productions among different cultivation modes in soda saline-alkali rice area of the western Songnen Plain, and increase local rice yield.
Taking ‘Jijing 88’ as the test material, four cultivation modes were setted, including no fertilization (basic), local farmer cultivation (control), high yield and high efficiency cultivation and super high yield cultivation. The yield formations and material production characteristics of rice under four modes were compared and analyzed.
High yield and high efficiency cultivation and super high yield cultivation significantly increased dry matter accumulations from jointing stage to maturity stage, with the average yields in two years of 10.34 and 12.15 t·hm−2 respectively. Compared with the control, the yields increased by 8.44% and 27.45% respectively, the effective panicles increased by 3.03% and 34.10% respectively, and the numbers of spikelets per panicle increased by 4.06% and 9.37% respectively.
The integrated and optimized cultivation techniques promote material production and transportation, optimize panicle structure, increase the numbers of effective panicle and spikelets per panicle, and greatly increase rice yield in soda saline-alkaline rice area of the western Songnen Plain.
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