Nutritive Value of Four Lucerne Cultivars Planted in Two Soil Types at Bathurst Research Station, Eastern Cape Province, South Africa  

作　　者：Mhlangabezi Solontsi Mfundo Phakama Maqubela Johan Adam van Niekerk Jan Willem Swanepoel Gideon Jordaan Unathi Gulwa Sive Tokozwayo Mhlangabezi Solontsi;Mfundo Phakama Maqubela;Johan Adam van Niekerk;Jan Willem Swanepoel;Gideon Jordaan;Unathi Gulwa;Sive Tokozwayo(Department of Rural Development and Agrarian Reform, Dohne ADI, Stutterheim, South Africa;Centre for Sustainable Agriculture, University of Free State, Bloemfontein, South Africa;Department of Rural Development and Agrarian Reform, Cradock Experimental Farm, Cradock, South Africa)

机构地区：[1]Department of Rural Development and Agrarian Reform, Dohne ADI, Stutterheim, South Africa [2]Centre for Sustainable Agriculture, University of Free State, Bloemfontein, South Africa [3]Department of Rural Development and Agrarian Reform, Cradock Experimental Farm, Cradock, South Africa

出　　处：《Agricultural Sciences》2022年第10期1048-1056,共9页农业科学（英文）

摘　　要：Medicago sativa (lucerne) is a widely used perennial fodder crop and ranked amongst the highly nutritive fodders globally. This study assessed the nutritive value (i.e. CP % and TDN %) of four lucerne cultivars under two soil types at Bathurst Research Station. A random grid (quadrant) sampling method was used for sampling and samples were submitted to the laboratory for analysis to determine forage quality. Data collection was carried out by separating harvested biomass for each cultivar using clean packs, weighed and dried at 70&#730;C for 48 hours then crude protein (CP %) and Total Digestible Nutrients (TDN %) were determined. The results of the study showed that soil type (site) had a significant (P < 0.05) effect on the overall quality of dry matter produced. In soil 1 (S1) the overall CP % content was 11.48% while it was 19.03% in soil 2 (S2). Cultivar 3 (KKS 9911) was the least nutritive cultivar in site 1, while the same cultivar was the most nutritive cultivar in site 2 pertaining CP content. Soil type also significantly affected (P < 0.05) the overall total digestible nutrient (TDN %) content of different lucerne cultivars. In S1, C4 (WL 525) had the highest (P < 0.05) TDN content in comparison to the rest of the cultivars while in the same soil type C1 (SA Std.) had the least TDN content. The four tested lucerne cultivars generally produced highly nutritive lucerne in S2 while they produced less nutritive lucerne in relation to both CP and TDN content in S1.Medicago sativa (lucerne) is a widely used perennial fodder crop and ranked amongst the highly nutritive fodders globally. This study assessed the nutritive value (i.e. CP % and TDN %) of four lucerne cultivars under two soil types at Bathurst Research Station. A random grid (quadrant) sampling method was used for sampling and samples were submitted to the laboratory for analysis to determine forage quality. Data collection was carried out by separating harvested biomass for each cultivar using clean packs, weighed and dried at 70&#730;C for 48 hours then crude protein (CP %) and Total Digestible Nutrients (TDN %) were determined. The results of the study showed that soil type (site) had a significant (P < 0.05) effect on the overall quality of dry matter produced. In soil 1 (S1) the overall CP % content was 11.48% while it was 19.03% in soil 2 (S2). Cultivar 3 (KKS 9911) was the least nutritive cultivar in site 1, while the same cultivar was the most nutritive cultivar in site 2 pertaining CP content. Soil type also significantly affected (P < 0.05) the overall total digestible nutrient (TDN %) content of different lucerne cultivars. In S1, C4 (WL 525) had the highest (P < 0.05) TDN content in comparison to the rest of the cultivars while in the same soil type C1 (SA Std.) had the least TDN content. The four tested lucerne cultivars generally produced highly nutritive lucerne in S2 while they produced less nutritive lucerne in relation to both CP and TDN content in S1.

关 键 词：Forage Quality Nutritive Value FODDER 

分 类 号：F42[经济管理—产业经济]