Practical Guidelines for Farm Waste Utilization in Sustainable Kale Production

IF 3.1 3区 农林科学 Q1 HORTICULTURE
Ornprapa Thepsilvisut, Nuengruethai Srikan, Preuk Chutimanukul, D. Athinuwat, W. Chuaboon, Rusama Marubodee, Hiroshi Ehara
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Abstract

Natural amendments from agricultural waste to improve soil physicochemical properties continuously attract research interest in promoting eco-friendly plant production. The present study evaluated the proper use of sawdust, biochar, and compost made from farm waste for kale production from seedling propagation to field conditions. From the seedling propagation process, the results demonstrate that the most suitable growing medium for kale seedings was 0.5:1:1 v/v of sawdust + biochar + compost, which gave the fastest mean germination times (2.71 days) and the highest seed germination percentage (78.33%). In addition to investigating the selected growing media as the soil amendments at five different rates (0, 6.25, 12.50, 18.75, 25.00, and 31.25 t ha−1), the result reveals that the fresh weight of marketable leaves was significantly highest under the 31.25 t ha−1 treatment. The application rate that yielded the highest gross profit margins was eight times higher than the control. Moreover, in some harvesting periods, the kale leaf yields under the treatment of 31.25 t ha−1 showed higher total chlorophyll and carotenoid contents.
可持续甘蓝生产中农场废物利用实用指南
从农业废弃物中提取天然添加剂来改善土壤理化性质,在促进生态友好型植物生产方面一直备受研究关注。本研究评估了从幼苗繁殖到大田条件下甘蓝生产中锯末、生物炭和由农业废弃物制成的堆肥的合理使用情况。从幼苗繁殖过程来看,结果表明最适合羽衣甘蓝播种的生长介质是 0.5:1:1 v/v 的锯末+生物炭+堆肥,其平均发芽时间最快(2.71 天),种子发芽率最高(78.33%)。除了以五种不同的施用量(0、6.25、12.50、18.75、25.00 和 31.25 吨/公顷)研究选定的生长介质作为土壤改良剂外,结果还显示,在 31.25 吨/公顷的处理中,可销售叶片的鲜重明显最高。毛利率最高的施用量是对照组的 8 倍。此外,在某些收获期,31.25 吨/公顷处理下的甘蓝叶片产量显示出更高的总叶绿素和类胡萝卜素含量。
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来源期刊
Horticulturae
Horticulturae HORTICULTURE-
CiteScore
3.50
自引率
19.40%
发文量
998
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