Adaptability Evaluation of Different Mix Sowing Rates ofOat-vetch and Nitrogen Fertilizer Rate in Alpine Region(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Adaptability Evaluation of Different Mix Sowing Rates ofOat-vetch and Nitrogen Fertilizer Rate in Alpine Region

Author(s):: ZHANG Yang; SUN Xiaofeng; ZHANG Rong; HAN Yan; XU Tingting; Academy of Agricultural and Forestry,Qinghai University,Xining,Qinghai 810016

Keywords:: oat-vetch; mix sowing rates; nitrogen fertilizer rate; evaluation

Abstract:: ‘Qingyin 1’ oat and vetch were used as test materials,a field experiment was conducted to research the effect and evaluate of different mix sowing rates of oat-vetch and nitrogen fertilizer rate on agronomic characteristics,yield characteristics and quality characteristics,in order to gain a theoretical basis for oat efficient cultivation and reasonable fertilization in alpine region.The results showed that principal component analysis was applied to the 10 involved characteristics and the contribution rate of three principal component factors reached to 89.12%.Mix sowing rates of oat-vetch 4∶1 and 120 kg?hm^-2 nitrogen application was the most suitable treatment,with the highest principal component score and integrated score.It had higher for plant height(133.03 cm),ear length(18.36 cm),stem weight per plant(8.12 g),leaf weight per plant(1.25 g),leaf stem ratio(0.154),fresh forage yield(30 330 kg?hm^-2),hay yield(13 267 kg?hm^-2),fresh-dry ratio(2.29),crude protein content(14.39%) and lower ash content(2.91%).It showed that mix sowing rates of oat-vetch 4∶1 and 120 kg?hm^-2 nitrogen application was the most pasture cultivation community structure and fertilization method for local cultivation.It provided a theoretical basis for oat efficient cultivation and reasonable fertilization in alpine region.

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Last Update: 2017-11-22