当前位置: X-MOL 学术Acta Agric. Scand. Sect. B Soil Plant Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Autumn sowing of facultative triticale results in higher biomass production and nitrogen uptake compared to spring sowing
Acta Agriculturae Scandinavica Section B, Soil and Plant Science ( IF 1.6 ) Pub Date : 2021-07-16 , DOI: 10.1080/09064710.2021.1950205
Lukas J. Koppensteiner 1 , Katharina Obermayer-Böhm 1 , Rea M. Hall 1 , Hans-Peter Kaul 1 , Helmut Wagentristl 2 , Reinhard W. Neugschwandtner 1
Affiliation  

ABSTRACT

Climate change will decrease precipitation in summer for Central Europe. Consequently, summer drought will affect crops, especially when sown late. Studies reported superior yields of triticale compared to wheat under suboptimal conditions like drought. The worldwide importance of triticale, however, is low and research on this crop is scarce. Therefore, a field experiment was conducted to investigate the development, growth, nitrogen (N) uptake and N utilisation of two autumn- and spring-sown facultative triticale varieties in two consecutive growing seasons under temperate climate conditions in Central Europe. Autumn-sown facultative triticale showed slower development, earlier harvest dates, higher soil coverage early in the season as well as higher crop stand height, above-ground dry matter, crop growth rate, N yield and N utilisation efficiency. Spring sowing of facultative triticale, however, resulted in a higher relative growth rate, N concentration and relative N uptake rate. Drought stress in the second season affected crop stand height, soil coverage, above-ground dry matter, crop growth rate, N concentration, N yield, N utilisation efficiency, soil water content and soil mineral N content. Autumn-sown triticale showed better adaption to dry conditions compared to spring-sown triticale. Among varieties, cv. Agrano performed better under optimal and cv. Trimmer under suboptimal conditions.



中文翻译:

与春播相比,兼性小黑麦秋播的生物量产量和氮吸收量更高

摘要

气候变化将减少中欧夏季的降水量。因此,夏季干旱会影响作物,尤其是晚播时。研究报告称,在干旱等次优条件下,与小麦相比,小黑麦的产量更高。然而,黑小麦在世界范围内的重要性很低,对这种作物的研究很少。因此,进行了田间试验,研究了中欧温带气候条件下两个秋播和春播兼性小黑麦品种在连续两个生长季的发育、生长、氮(N)吸收和氮利用情况。秋播兼性小黑麦表现出较慢的发育、较早的收获日期、较高的季节早期土壤覆盖率以及较高的作物林高、地上干物质、作物生长速度、氮产量和氮利用效率。然而,兼性小黑麦春播导致较高的相对生长率、氮浓度和相对氮吸收率。第二季干旱胁迫影响作物的林分高度、土壤覆盖度、地上干物质、作物生长速度、氮浓度、氮产量、氮利用效率、土壤含水量和土壤矿物质氮含量。与春播小黑麦相比,秋播小黑麦对干旱条件的适应能力更强。在品种中,cv。Agrano 在优化和 cv 下表现更好。次优条件下的修剪器。氮浓度、氮产量、氮利用效率、土壤含水量和土壤矿物质氮含量。与春播小黑麦相比,秋播小黑麦对干旱条件的适应能力更强。在品种中,cv。Agrano 在优化和 cv 下表现更好。次优条件下的修剪器。氮浓度、氮产量、氮利用效率、土壤含水量和土壤矿物质氮含量。与春播小黑麦相比,秋播小黑麦对干旱条件的适应能力更强。在品种中,cv。Agrano 在优化和 cv 下表现更好。次优条件下的修剪器。

更新日期:2021-07-16
down
wechat
bug