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大田试验在印度的爱扎达农业大学进行,土质为沙壤土.研究大麦品种Ratna和K19-98/2(高秆)和RDB_1和RDB_2(矮秆)在两种施氮水平和两种群体密度上的生理特性.裂区设计,品种为主区,氮肥和密度分别为副区和副-副区,处理重复三次.除每公顷施用40公斤P_2O_5和20公斤K_2O作基肥外,还施氮肥60和90公斤/公顷,氮肥分两次施用,播种期和拔节后期各施一半.播种密度为每平方米30和60株.记载了大麦品种的分蘖类型、籽粒发育,产量及产量构成因素,并采用Kurtz和Ewans(1965)的方法测定不同采样期的呼吸率.
The field experiment was conducted at the Agadir Agricultural University in India, and the soil was sandy loam.The barley cultivars Ratna and K19-98 / 2 (tall) and RDB_1 and RDB_2 (dwarf) were studied at two nitrogen levels and two population densities Of the physiological characteristics of split zone design, the main varieties of varieties, nitrogen and density were deputy district and deputy - deputy district, the treatment repeated three times.In addition to the application of 40 kilograms of P2O5 and 20 kilograms of K2O per hectare as a base fertilizer, nitrogen fertilizer 60 90 kg / ha, nitrogen fertilizer was applied twice, half of the sowing and jointing late each stage.Seeding density of 30 and 60 plants per square meter.Recall the barley varieties tillering type, grain development, yield and yield components, and use The method of Kurtz and Ewans (1965) measured respiration rates at different sampling periods.