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在不同种植周期下的种植密度下,甘的农学参数

J E Costa¹, J H B Silva¹, I D N Silva¹

¹Universidade Federal da Paraíba, Areia, PB, Brasil.

Brazilian journal of biology = Revista brasleira de biologia

|December 21, 2023

概括

低密度甘种植园 (LDSP) 显示农学可行性高达第二个阶段. 虽然最初的产量更高,但较低的密度显著减少了随后的收获,影响了整个甘生产.

科学领域:

农业科学农业科学
农业学是一种农业学.
植物科学植物科学

背景情况:

巴西生产者采用低密度甘种植 (LDSP) 来降低种子和运营费用.
优化种植密度对于最大限度地提高甘产量和经济可行性至关重要.

研究的目的:

与传统种植密度相比,评估LDSP的农学可行性.
分析不同种植密度对三种种植周期中的甘生产率的影响.

主要方法:

在巴西帕拉伊巴州阿雷亚的实地研究,使用五种种植密度 (5-25个芽/m2).
随机区块设计,在三个种植周期 (2017-2020) 中进行四次复制.
手动采摘,没有事先燃烧,每年进行NPK施肥.

主要成果:

较低的种植密度 (10芽/m2) 在种植甘阶段 (101.03 t ha-1) 产生了更高的生产率.
这归因于植物高度和茎数量的增加,可能是由于资源 (光,水,光合作用) 的更好可用性.
在较低密度的第二个季节观察到显著的产量减少 (高达65.62%),与茎数相关.

结论:

在10个芽/m2的LDSP证明了农学可行性,直到第二个季度.
需要对机械收获和营养/水管理等因素进行进一步的研究,以进行大规模的可持续性评估.

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