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首页> 外文期刊>Range Management & Agroforestry >Effect of cutting management, nitrogen levels and time of application on the fodder yield and quality of oats (Avena sativa L.)
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Effect of cutting management, nitrogen levels and time of application on the fodder yield and quality of oats (Avena sativa L.)

机译：cutting割管理，施氮水平和施肥时间对燕麦（Avena sativa L.）饲料产量和品质的影响

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Two field experiments were conducted at Punjab Agricultural University, Ludhiana during rabi 1994-95 to 1996-97 to find out the response of oats to levels and time of nitrogen application under different cutting management. In Experiment-I, first cut at 90 days after sowing + second cut at 50 per cent flowering (H_3) and single cut at 50 per cent flowering (H_3) gave significantly higher green fodder (432 and 437 q/ha. respectively) over first cut at 70 DAS + second cut at 50 per cent flowering (H_1) by a margin of 15.8 and 17.2 per cent, respectively. Whereas, significantly higher dry matter yield (92 q/ha) was recorded with H_3 over H_1 (63 q/ha) and H_3 (72 q/ha). The crude protein content at 50 per cent flowering was lowest 8.8 to 10.4 per cent (irrespective of the treatment) as compared to 13.3 per cent at 70 DAS and 11.9 per cent at 90 DAS. The green fodder and dry matter yields increased significantly up to the highest dose of 240 kg N/ha (522 q green fodder and 94 q dry matter/ha). Nitrogen application also increased the crude protein content from 8.4 to 12.8 per cent. In Experiment-II, nitrogen applied to both cuttings (half to first cut and half to second cut) produced 7.0 percent higher green fodder yield (477 q/ha) over full dose ofnitrogen applied to first cut. Similar trend was observed in dry matter yield. In the first cutting, crude protein content was higher when full dose of nitrogen was applied to first cutting, whereas in the second cutting, crude protein content was higherwhen nitrogen was applied to both cuttings.
机译：在1994-95年至1996-97年狂犬病期间，在卢迪亚纳的旁遮普农业大学进行了两次田间试验，以了解燕麦在不同切割管理下对施氮水平和施氮时间的响应。在实验一中，播种后90天进行的第一次切割+开花率为50％（H_3）的第二次切割和开花率为50％（H_3）的单次切割提供了明显更高的绿色饲料（分别为432和437 q / ha）。第一次切割为70 DAS，第二次切割为50％开花（H_1），分别为15.8％和17.2％。相比之下，H_3记录的干物质产量明显高于H_1（63 q / ha）和H_3（72 q / ha）。开花50％时的粗蛋白含量最低（8.8％至10.4％）（与处理无关），而70 DAS时为13.3％，90 DAS时为11.9％。最高剂量为240 kg N / ha时，绿色饲料和干物质的产量显着增加（522 q绿色饲料和94 q干物质/公顷）。氮的施用也使粗蛋白含量从8.4％增加到12.8％。在实验II中，与两次施氮量相比，施于两个切屑（一半至第一次切屑，一半至第二次切屑）上的氮产生的绿色饲料产量（477 q / ha）高7.0％。在干物质产量中观察到类似趋势。在第一次切割中，当全氮施用于第一次切割时，粗蛋白含量较高，而在第二次切割中，当在两个切割中均使用氮时，粗蛋白含量较高。

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