不同采伐高度下山楂生物量产量和品质的季节变化

IF 0.3 Q4 AGRICULTURE, MULTIDISCIPLINARY
Carol Uu-Espens, J. Canul-Solís, A. Chay-Canul, Á. Piñeiro-Vázquez, G. Villanueva‐López, Deb R. Aryal, Dixan Pozo-Leyva, F. Casanova‐Lugo
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引用次数: 0

摘要

本研究的目的是评估和比较墨西哥热带干旱和雨季不同收获高度下多样叶山雀饲料的产量和质量。在一年中的两个季节,处理包括距离地面40、60和80厘米的三个收获高度,每60天切割一次。在每个时期,生物量都被收获并分为可食用和不可食用成分。测定了牧草的生物量产量、粗蛋白(CP)、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)、木质素、灰分和有机物(OM)的浓度。在80 cm高度的切割产生了最高的饲料生物量(2 008 kg DM ha−1),而在40和60 cm高度之间的饲料产量没有显著差异。切割高度的差异也影响了动物可食用饲料的营养品质,因为CP、ADF和NDF的浓度差异很大。割高与季节对牧草产量和品质有显著的交互作用。旱季NDF、FDA、木质素和灰分含量较高,PC和OM含量较低。建议使用多样叶T.diversifolia作为饲料植物,并将其切割到80厘米的高度,以保持最佳产量和饲料质量,全年用于畜牧生产。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Seasonal variation in biomass yield and quality of Tithonia diversifolia at different cutting heights
The objective of this research was to evaluate and compare the yieldperformance and quality of Tithonia diversifolia forage under different harvesting heights, during the dry and rainy seasons in tropical Mexico. The treatments consisted of three harvest heights 40, 60 and 80 cm from the ground level, cut every60 days, during two seasons of the year. In each period, the biomass was harvested and separated into edible and non-edible components. We determined the biomass yield, and the concentration of crude protein (CP), neutral detergent fibre (NDF), acid detergent fibre (ADF), lignin, ash and organic matter (OM) of the forage. Cutting at 80 cm height yielded the highest forage biomass per harvest (2 008 kg DM ha−1) while there were no significant differences in forage yield between 40 and 60 cm heights. The differences in cutting heights also affected the nutrient qualityof the animal edible forage because the concentrations of CP, ADF and NDF varied significantly. There was a significant interaction between cutting heights and the season on forage production and quality. In the dry season, the content of NDF, FDA, lignin and ash were higher, while the PC and OM were lower. The use of T. diversifolia as a forage plant and cutting it to a height of 80 cm is recommended to maintain the best production and the quality of the forage throughout the year for livestock production.
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Ecosistemas y Recursos Agropecuarios
Ecosistemas y Recursos Agropecuarios AGRICULTURE, MULTIDISCIPLINARY-
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32 weeks
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