Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (6): 1427-1439.DOI: 10.3969/j.issn.1004-1524.2023.06.20

• Environmental Science • Previous Articles     Next Articles

Effects of planting and breeding waste composting on nutrient utilization and soil properties of zucchini in greenhouse

TIE Jianzhong1(), LIU Yayu1, GAO Xueqin1, XU Zhiqi1, HU Linli1,2,*(), YU Jihua1,2   

  1. 1. College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China
    2. State Key Laboratory of Arid Land Crop Science, Lanzhou 730070, China
  • Received:2022-08-09 Online:2023-06-25 Published:2023-07-04

Abstract:

In view of the excessive application of chemical fertilizers in greenhouses vegetables production and the large amount of planting and breeding waste in northwest China, planting and breeding wastes, such as sheep dung, vegetable waste, cow dung, mushroom residue, straw, were used in 8 recipes of aerobic composting. The treatment without fertilization application and the treatment with local commercial organic fertilizer were set as controls, and were denoted as CK1 and CK2, respectively. Except CK1, 6 000 kg·hm-2 composting products were applied in the other treatments, respectively, as the base fertilizer. The effects of treatments on nutrient utilization of zucchini and soil properties were studied. Compared with the CK2 treatment, the dry matter accumulation of zucchini under T4 (co-composting of sheep dung, vegetable waste and straw at a mass ratio of 6∶3∶1) and T7 (co-composting of sheep dung, vegetable waste, mushroom residue and straw at a mass ratio of 6∶2∶1∶1) was significantly (P<0.05) increased by 14.69% and 9.97%, respectively. The yield of zucchini under T4 and T7 was significantly increased by 23.12% and 18.01%, respectively. The nitrogen, phosphorus and potassium fertilizer utilization rates were the highest under the T4 treatment, which were significantly higher than those under CK2 by 8.19, 12.24 and 14.38 percentage points, respectively. The nitrogen, phosphorus and potassium contents in the fruit were significantly increased under T4 treatment than those under CK2, whiles the nitrogen, phosphorus and potassium contents in the root were significantly increased under T7 treatment than those under CK2. Besides, the contents of soil organic matter, alkaline hydrolysis nitrogen, available phosphorus and available potassium were significantly increased under T4 and T7 treatments. It was concluded that T4 treatment showed the best performance, as it was conducive to maximize the nutrient uptake and utilization capacity of zucchini, promote nutrients translocation to the fruit, as well as effectively improve soil physiochemical properties, hence to increase yield.

Key words: planting and breeding waste, zucchini, yield, nutrient utilization, soil

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