Effect of legume leaf mulch and fertilizer on soil quality and rice yield for small scale production

Lalremsang, Paul; Upadhyaya, Kalidas; Sahoo, Uttam Kumar; Singson, Lungmuana

doi:10.1016/j.chnaes.2022.12.006

Cited by 2 publications

(1 citation statement)

References 34 publications

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“…Moreover, the tool cut off part of the ridge surface, causing serious damage to the ridge body with buried perennial roots. However, in contrast, after the operation of the profiling leaf crusher, there exists no obvious long leaf remaining in the furrow, and the treated leaves are more fully mixed with the soil and distributed more evenly, which is beneficial to improving the efficiency of converting leaf organic matter into soil fertility [26]. To sum up, the comprehensive improvement effect of profiling modification on leaf-chopping performance is very significant.…”

Section: Comparison On Improvements In Crushing Qualitymentioning

confidence: 99%

Design and Experiment of Profiling Furrow-Ridge Terrain by Cane Leaf-Chopping and Returning Machine

Zhang,

Gao,

Shen

et al. 2024

Agriculture

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Conventional straw-returning machines were incompatible with ridge cultivation terrain and unevenly distributed materials, resulting in substandard operations such as insufficient leaf fragmentation, damage to ratoon stumps, and high cutting energy consumption. In this regard, this paper proposes a novel profiling configuration of chopping and returning machine to adapt to the coverage characteristics of cane leaves in furrow-ridge terrain. The leaves piled at furrow sole are intensively collected and fed into the whirling space by the flexible hook teeth assembly, and are cooperatively broken by the unequal-length swing blades densely arranged along the double helix. Based on the measured topographic trends and dynamic analysis of the leaf-shredding process, experimental factors affecting profiling cutting and picking capabilities of the main components were determined. Further, using chopping qualification rate (CQR) and fragmentation degree (CFD) as indicators, field trails were conducted through a response surface method to test the comprehensive crushing performance of the machine. After multi-objective optimization, the optimal structural and operating parameters were determined as: blade length gradient of 1.57 cm, teeth spacing of 6.84 cm and feed speed of 3.2 km/h. With such adaptive configurations, CQR and CFD reached 81.14% and 0.101, respectively, which were significantly improved by 60.50% and 47.99% compared to those of conventional machines. Crushed leaves appeared to be more thoroughly mixed with the soil and more evenly spread in the field. Meanwhile, the traction resistance tended to be stable, with an effective RSM 45.85% lower than the value of higher-level blade gradient, indicating a better overall fit with the irregular terrain. This study can provide a reference for the development of leaf-chopping and returning machines suitable for ridge-type crops.

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Section: Comparison On Improvements In Crushing Qualitymentioning

confidence: 99%