Effects of Compost Fertilizer on the Vegetative and Productive Performance of the Tree Plants

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Horticultural and Floricultural Crops".

Deadline for manuscript submissions: closed (1 January 2022) | Viewed by 5678

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Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121 Perugia, Italy
Interests: soil fertility; agriculture environment; plant physiology; sustainable agriculture; biofortification; abiotic stresses; carbon sequestration; fruit quality
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Department Department of Agricultural and Environmental Sciences - Production, Landscape, Agroenergy, University of Milan, Via Celoria 2, 20133 Milano, Italy
Interests: organic waste treatment; biopolymers; emerging contaminants; anaerobic digestion; composting; sewage sludge; bioplastics degradation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

nowadays the interest in composting is increasing because it allows reducing the cost of disposal of organic by-products and residues transforming them into amendments or in plant nursery substrates. Composting allows to subtract organic by-products from the disposal cycle and put them back into the production cycle, enhancing their quality and closing the organic carbon cycle. The return of organic matter to the soil is of great environmental and ecological interest since it positively contributes to the mitigation of environmental issues, such as the severe degradation processes affecting some regions of the world also caused by climate change. A growing body of literature reports mostly agronomical and environmental benefits related to compost use in a wide range of agroecosystems. However, methods to improve the composting process and compost quality using different by-products, the effects on the soil and plants of the compost amendment, and the mechanisms of action are yet not totally clear, especially in tree plants. The aim of this Special Issue is to advance knowledge on the influence of compost use on the whole tree plants system: by-products and their composting, amendment effects on physiology, productive and vegetative activities, biomass organ partitioning, nutritional status, biostimulant activity, suppressiveness effects, and fruit quality.

Dr. Luca Regni
Dr. Primo Proietti
Dr. Mirko Cucina
Guest Editors

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Keywords

  • organic waste
  • compost
  • sustainability
  • tree plants
  • tree physiology
  • nutritional status
  • fruits quality

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Published Papers (1 paper)

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Research

13 pages, 3127 KiB  
Article
Integrated Nutrient Management Significantly Improves Pomelo (Citrus grandis) Root Growth and Nutrients Uptake under Acidic Soil of Southern China
by Xiaoman Huang, Muhammad Atif Muneer, Jian Li, Wei Hou, Changcheng Ma, Jiabin Jiao, Yuanyang Cai, Xiaohui Chen, Liangquan Wu and Chaoyuan Zheng
Agronomy 2021, 11(6), 1231; https://doi.org/10.3390/agronomy11061231 - 17 Jun 2021
Cited by 25 | Viewed by 4519
Abstract
Root system plays a crucial role in plant growth and development by uptake of soil nutrients, which is affected by intensive use of NPK fertilizer. However, it is unknown how integrated nutrient management (INM) could affect the root growth and its nutrient uptake [...] Read more.
Root system plays a crucial role in plant growth and development by uptake of soil nutrients, which is affected by intensive use of NPK fertilizer. However, it is unknown how integrated nutrient management (INM) could affect the root growth and its nutrient uptake in the red soils of southern China. For this, the impacts of different INM practices on root morphological traits and root nutrient uptake were investigated in the pomelo tree. First, we investigated the spatial root distribution of various tree ages (i.e., 8, 13, 18, and 23 years old) and found the optimum root growth at 20–80 cm around the tree trunk in topsoil (0–20 cm). Hence, the pomelo trees were fertilized at 20–80 cm around the trunk, i.e., FFP (farmer fertilization practice), optimization NPK fertilizer (O) combined with lime (L) and mushroom residue (M) known as O+L+M treatment, and O+L combined with Mg fertilizer called as O+L+Mg treatment. We found that root length (RL) significantly increased by application of O+L+M (108.5 and 219.1 cm) and O+L+Mg (73.6, 66.8 cm) in topsoil and subsoil, respectively, in 2019. Similarly, root surface area (RSA) was significantly higher under INM, i.e., O+L+Mg > O+L+M > FFP. For root diameter (RD), O+L+M (0.8 mm) and O+L+Mg (1.5 mm) showed significantly lower diameter than FFP (2.54 mm). The root tips (RT) also improved considerably under INM practices compared with FFP. Besides, root nutrient contents (N, P, K, Ca, and Mg) also significantly improved under O+L+M and O+L+Mg over FFP. Similar trends of root growth and nutrients uptake were recorded in 2020. Overall, these findings suggest that INM plays a significant role in root development and nutrient uptake under acidic soil, which could be useful for maximizing crop productivity. Full article
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