Ecological and Environmental Benefits of Planting Green Manure in Paddy Fields

Abstract

Soil fertility management is one of the most important factors affecting crop production. The use of organic manures, including green manure, is an important strategy to maintain and/or improve soil fertility for sustainable crop production. Green manure generally refers to crops that can provide fertilizer sources for agricultural cash crops and improve soil productivity. The application of green manure is a traditional and valuable practice for agroecosystem management, particularly in paddy systems where green manure is rotated with rice. This paper systematically reviews the effects of green manure on soil microenvironments and greenhouse gas emissions, and the role of green manure in the phytoremediation of paddy fields. The paper concludes that green manure can not only affect soil nutrients and the microbial community, but also reduce greenhouse gas emissions and enhance soil remediation to some extent. Moreover, this review provides theoretical guidance on the selection of green manure germplasm and tillage methods for paddy fields of different climates and textures. However, this review only provides a macro-overview of the effects of green manure on soil nutrients, greenhouse gas emissions, and soil remediation in rice paddies based on a large number of previous studies, and does not provide a comprehensive quantitative assessment due to differences in green manure varieties and soil texture. The prospects for quantitative analysis of the ecological and economic effects of the sustainable development of green manure cultivation are discussed.

Evaluation of Ecological Adaptability of Oilseed Radish (<i>Raphanus sativus</i> L. var. <i>oleiformis</i> Pers.) Biopotential Realization in the System of Criteria for Multi-Service Cover Crop

“…In the recent period, due to the actualization of such areas as greening and biologization of fertilizers, the development of green bioenergy, the MSCC list also includes the possibility of fodder and bioenergy use of relevant crops (Lavergne et al, 2021;Singh et al, 2023). A significant share in the MSCC system is played by the aspects of using intermediate crops to prevent the deficit of organic matter that enters the soil under different fertilization options, reduce the rate of its mineralization and optimize the accumulation of organic carbon (Lei et al, 2022; Lee et al, 2023). Green manure is considered from an ecological point of view as the most rational approach to balanced plant nutrition and guarantees appropriate optimized levels of macro and microelements recycling in assessing their balance in the usereturn ratio (Wittwer et al, 2020;Guinet et al, 2023).…”

Ecological Role of Different Siderate Crops in Improving Soil Properties

“…B.Lei, J.Wang, H.Yao [2] increased the yield of rice as a result of using siderates. This is a reduction in the process of soil erosion, an improvement in density, It is explained by the optimization of soil properties such as water permeability, porosity, moisture storage capacity, enzyme activity and soil environment (pH).…”

Development of GUI-based deep learning and image processing system for legume nodule segmentation and classification

“…Nitrogen (N) is one of the most important nutrient elements for plant growth and development. In agricultural systems, N is supplied to plants from organic (manure, compost) and inorganic (N fertilizers) sources 1,2 . However, plants of Fabaceae (legume) family, such as beans and peas, possess a unique ability to obtain N directly from the atmosphere.…”