ACTA AGRICULTURAE BOREALI-SINICA ›› 2019, Vol. 34 ›› Issue (3): 111-118. doi: 10.7668/hbnxb.201751319

Special Issue: Oil crops

• Tillage and Cultivation·Physiology and Biochemistry • Previous Articles     Next Articles

Effects of Calcium Application on Peanut Yield and Physiological Characteristics under Different Planting Patterns

LIN Songming1, ZHANG Zheng2, NAN Zhenwu2, MENG Weiwei2, LI Lin1, GUO Feng2, WAN Shubo1   

  1. 1. College of Agronomy, Hunan Agricultural University, Changsha 410128, China;
    2. Shandong Academy of Agricultural Sciences, Key Laboratory of Crop Genetic Improvement and Ecological Physiology of Shandong Province, Jinan 250100, China;
    3. College of Life Science, Shandong Normal University, Jinan 250000, China
  • Received:2019-01-18 Published:2019-06-28

Abstract: In order to determine the response of peanut pod yield and physiological characteristics to calcium fertilizer under different planting patterns, a field experiment was designed with Huayu 25 as the test material, setting 2 planting patterns(3:4 maize-peanut intercropping and peanut monoculture) and 4 calcium treatments(Ca0:0 kg/ha, Ca1:150 kg/ha, Ca2:300 kg/ha and Ca3:450 kg/ha). The effects of calcium application on photosynthetic characteristics of peanut leaves, pod yield and its physiological characteristics under different planting patterns were systematically analyzed. The results showed that under the same calcium application condition, the intercropping decreased the chlorophyll relative content(SPAD), net photosynthetic rate, CAT, POD and SOD activities of peanut, but increased the MDA content of peanut leaves, and the yield of pods also decreased in a certain degree. Under the same planting pattern, calcium treatments increased the pod yield of peanut in different degrees compared with the Ca0, and the peanut yield in middle rows was higher than that of monoculture peanut. In addition, with the increase of calcium application, the pod yield of intercropping and monoculture peanut increased first and then decreased, and the highest came from Ca2 treatment. Moreover, the experiment results were basically consistent with the appropriate calcium amount applied in middle rows of monoculture and intercropping peanuts derived from the regression equation. The calcium application enhanced the photosynthetic capacity of peanut leaves under monoculture and intercropping patterns, and their net photosynthetic rate(Pn) increased by 3.1%-23.7% and 8.9%-21.8%, respectively. The Ca2 treatment could increase the chlorophyll relative content(SPAD), and the activities of CAT, POD and SOD in the leaves of monoculture and intercropping peanut, and reduced the MDA content of leaves, which was beneficial to improving the adaptability of peanuts to shade and increasing the production of intercropping peanuts. The Ca2 treatment was the suitable calcium amount in monoculture and intercropping shading patterns of the experiment.

Key words: Peanut, Planting patterns, Calcium fertilizer, Physiological characteristics, Yield

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Cite this article

LIN Songming, ZHANG Zheng, NAN Zhenwu, MENG Weiwei, LI Lin, GUO Feng, WAN Shubo. Effects of Calcium Application on Peanut Yield and Physiological Characteristics under Different Planting Patterns[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2019, 34(3): 111-118. doi: 10.7668/hbnxb.201751319.

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