Research Progress and Prospect of Mechanized Harvesting Technology in the First Season of Ratoon Rice

Abstract

The first seasonal harvest technology of ratoon rice requires the least rolling with suitable stubble height required by agronomy when the ratoon rice is nearly mature. Mechanized harvesting in the first season of ratoon rice needs to finish harvesting, threshing, cleaning, straw treatment, grain transportation, grain collection and other processes at one time with a low rolling rate and low rolling degree. Limited by the production conditions such as wet and soft fields, and wet, thick and strong straw, harvest technology with high efficiency and a low rolling rate of ratoon rice in the first season has become the key technology and research focus affecting the yield of ratoon rice. In this paper, we analyzed the planting and popularization of ratoon rice in China, summarized the planting mode and agronomic characteristics of ratoon rice, highlighted the research status of mechanized harvesting equipment for the first season of ratoon rice, especially the specialized harvesters, and illustrated in detail the technical characteristics and research trends of key segments such as chassis, header, and processes such as threshing and cleaning, and straw and stubble treatment of ratoon rice harvesters. In addition, we summarized the application status and value of lightweight technology, performance monitoring and fault diagnosis technology, grain quality detection technology and automatic navigation technology of mechanized harvest in the first season, explained the main problems and reasons affecting the development of ratoon rice harvest mechanization in China, and illustrated the prospect of its research focus and tendency.

Enhancing the Efficiency of Rice Harvesting: A Study on the Design and Evaluation of Ripper Type Rice Harvesters

“…Efforts to implement technological advancements in agriculture, such as the utilization of rice harvesters, are a desired objective. The shortage of agricultural labor or farm laborers has led to the utilization of agricultural instruments and technology at different phases of farming operations, such as rice cultivation [7][8][9]. Consequently, the utilization of sophisticated and effective rice harvesters becomes imperative in order to enhance agricultural output and address the problem of manpower scarcity [10][11].…”

“…Amid prolonged periods of drought, farmers frequently encounter difficulties in procuring water for the purpose of irrigating their agricultural plots. During the rainy season, rivers often experience overflow and inundate villages, resulting in detrimental effects on their rice fields [7][8][9][10][11][12]. Hence, there is a requirement for rice harvesters that can function optimally in muddy field conditions, facilitating the efficient execution of the harvesting operation.…”

Design and Parametric Optimization Study of an Eccentric Parallelogram-Type Uprighting Device for Ratoon Rice Stubbles

“…However, during machine harvesting, the straight-line crushing rate (the ratio of the crawler crushing area to the harvesting area) is as high as 40-50% [6,7], and the turning area is 70-80%, as shown in Figure 1, which results in delayed development of regenerative axillary buds and severe yield reduction in the second season (with the ratoon yield in the crushed area accounting for about 30% of the uncrushed area) [8][9][10]. Therefore, increasing the yield of the second season of ratoon rice is of great significance to the development of ratoon rice [11,12].…”

“…of regenerative axillary buds and severe yield reduction in ratoon yield in the crushed area accounting for about 30% o Therefore, increasing the yield of the second season of ratoo to the development of ratoon rice [11,12]. In order to address the technical challenge of signifi second-season rice caused by the high rolling compacti harvesting of the first-season ratoon rice, Yang et al attempt quality of the ratoon season through optimized variety techniques [13].…”

Global Navigation Satellite Systems as State-of-the-Art Solutions in Precision Agriculture: A Review of Studies Indexed in the Web of Science

“…A thorough understanding of the field's characteristics and spatial variability allows for the optimization of input utilization, customizing management strategies, and waste minimization, resulting in enhanced resource efficiency and cost savings [9]. The precise guidance and automated steering capabilities of GNSS-based systems contribute to more consistent seed placement, fertilizer application, and other field operations, resulting in improved crop uniformity, optimized input usage, and increased yields [10]. Map-based VRT systems utilize GNSS positioning to deliver site-specific applications of inputs, such as fertilizers, pesticides, and irrigation water [11].…”