ACTA AGRICULTURAE BOREALI-SINICA ›› 2019, Vol. 34 ›› Issue (S1): 228-234. doi: 10.7668/hbnxb.201751578

Special Issue: Rice Soil fertilizer

• Resource and Environment·Plant Protection • Previous Articles     Next Articles

Effects of Rice Straw Covered with Soil Surface on Yield and Soil Fertility of Nasturtium officinale R. Br. in Autumn and Winter Stubble in Greenhouse

YAN Wuwei, ZHANG Yongxian, JIANG Jiezeng, XIE Mengwei, QIAN Jiayu, ZHANG Hao   

  1. Aquatic Vegetable Lab, Yangzhou University, Yangzhou 225009, China
  • Received:2019-08-20 Published:2019-12-28

Abstract: In order to explore the effects of soil surface covering rice straw rot in different seasons on the yield of aquatic vegetables and soil fertility in greenhouses, 7 500 kg/ha of rice straw was covered with soil surface and control (CK, not covered with rice straw), and each treatment was set up 3 times. Repeatedly, in the autumn and winter, the plastic cultivation box was used in the greenhouse and the water was used to grow the watercress to study the effects of rice straw mulching on the decomposing rate of rice straw, the yield quality of watercress and the physical and chemical properties of soil. The results showed that the decomposing rate of rice straw was 69.34%, and the total yield of treated and control watercress was 68 610, 64 725 kg/ha, which was 6% higher than that of the control. The treated watercress could absorb more nitrogen, phosphorus and potassium. The stem and leaf dry matter rate and crude fiber content were significantly lower than the control, which improved the quality of the watercress plant. The soil organic carbon content decreased by 1.15% compared with that before planting, and the control decreased by 2.88%, which effectively alleviated the decrease of organic carbon content caused by plant growth and absorption. The total nitrogen-total phosphorus-total potassium content of the soil increased by 15.4%-9.3%-5.7% compared with the control, the nitrate nitrogen content increased by 14.51% compared with the control, the available phosphorus content decreased by 4.9% compared with the control, and the available potassium content increased by 8.36% compared with the control. The activities of soil invertase, acid phosphatase and urease decreased after planting, but the decrease was significantly lower than that of the control, indicating that rice straw mulching can effectively improve soil enzyme activity. It is believed that there is still a high decomposing rate of rice straw in the paddy field in the facility, which can improve the yield and quality of aquatic vegetables and improve soil properties.

Key words: Rice straw, The decomposing rate, Nasturtium officinale R. Br., Yield and quality, Physicochemical properties of soil

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Cite this article

YAN Wuwei, ZHANG Yongxian, JIANG Jiezeng, XIE Mengwei, QIAN Jiayu, ZHANG Hao. Effects of Rice Straw Covered with Soil Surface on Yield and Soil Fertility of Nasturtium officinale R. Br. in Autumn and Winter Stubble in Greenhouse[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2019, 34(S1): 228-234. doi: 10.7668/hbnxb.201751578.

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