Cao Z Z, Jia D J, Wang X, et al . Selection and breeding of Gannong No.1 hybrid lucerne ( Medicago sativa ). Pratacultural Science, 1991, 8(6): 38-39.
[2]
Jiang H M, Baoyin T. Study on the root growth characteristics of Medicago falcata L. Chinese Journal of Grassland, 2014, (1): 53-57.
[3]
Nan L L, Shi S L, Zhang J H. Study on root system development ability of different root-type alfalfa. Acta Prataculturae Sinica, 2014, 23(2): 117-124.
[4]
Wang B. The Effect of Low Temperature Stress on Fatty Acid of Cell Membrane in Alfalfa Crowns[D]. Changchun: The Northeast Normal University, 2011.
[5]
Cao Y Q, Liu Y M, Wang M C, et al . Testing study of cultivation technique of water collection by ridge and furrow mulching rainfed farmlands. Agricultural Research in the Arid Areas, 1994, 12(1): 74-78.
[6]
Li F M, Wang P, Wang J, et al . Effects of irrigation before sowing and plastic film mulching on yield and water uptake of spring wheat in semiarid Loess Plateau of China. Agricultural Water Management, 2004, 67(2): 77-88.
[7]
Zhou L M, Li F M, Jin S L, et al . How two ridges and the furrow mulched with plastic film affect soil water, soil temperature and yield of maize on the semiarid Loess Plateau of China. Field Crops Research, 2009, 113(1): 41-47.
[8]
Zhang S F, Chai S X, Lin Y C, et al . Effects of plastic film mulching on soil moisture in winter wheat field. Journal of Gansu Agricultural University, 2011, 46(2): 45-52.
[9]
Liu C A, Li F R, Zhou L M, et al . Effects of water management with plastic film in a semi-arid agricultural system on available soil carbon fractions. European Journal of Soil Biology, 2013, 57: 9-12.
[10]
Xu C L. A study on growth characteristics of different cultivars of oat ( Avena sativa ) in alpine region. Acta Prataculturae Sinica, 2012, 21(2): 280-285.
[11]
Han Q F, Wu X W, Jia Z K, et al . An alysis on dynamic variety of crown characteristics of different fall dormancy Medicago sativa cultivars. Acta Prataculturae Sinica, 2008, 17(4): 85-91.
[12]
Wang Y S, Yu L Q, Zhang L J. Primary study on root system of alfalfa in the sowing year. Acta Agrestia Sinica, 2008, 16(3): 313-315.
[13]
Schwab P M, Barnes D K, Sheaffer C C, et al . Factor affecting laboratory evaluation of alfalfa cold tolerance. Crop Science, 1996, 36(2): 318-325.
[14]
Wang S F, Zhang X Y, Pei Y D. Impacts of different water supplied conditions on root distribution, yield and water utilization efficiency of winter wheat. Transactions of the Chinese Society of Agricultural Engineering, 2006, 22(2): 27-32.
[15]
Ren X L, Jia Z K, Chen X L, et al . Effect of ridge and furrow planting of rainfall harvesting on soil available nutrient distribution and root growth of summer corn under simulated rainfall conditions. Transactions of the Chinese Society of Agricultural Engineering, 2007, 23(12): 94-99.
[16]
Ren X L, Jia Z K, Han Q F, et al . Effect of ridge and furrow rainfall harvesting planting system on production of summer corn ( Zea mays L.) under simulated rainfall conditions in semi-arid areas. Transactions of the Chinese Society of Agricultural Engineering, 2007, 23(10): 45-50.
[17]
Liu R F, Zhang X Q, Liu J P, et al . Effect of three different purple soils on development and biomass composition of alfalfa. Journal of Anhui Agricultural Sciences, 2005, 33(10): 1817-1818.
[18]
Ren X L, Jia Z K, Chen X L, et al . Effect of corn ( Zea mays L.) water and temperature of ridge and furrow planting of rainfall harvesting under simulated rainfall conditions. Scientia Aagricultura Sinica, 2008, 41(1): 70-77.
Pantalone V R, Rebetzke G J, Burton J W, et al . Phenotypic evaluation of root traits in soybean and applicability to plant breeding. Crop Science, 1996, 36(2): 456-459.
[23]
Yue Y H, Qi X, Wang Y R, et al . Persistence of 35 Medicago sativa varieties at the 10th year after establishment. Acta Prataculturae Sinica, 2014, 23(1): 58-64.
[24]
Zhang B T, Mu C S, Li Z J, et al . The approach to promote regrowth of root tap after winter injury for alfalfa. Chinese Journal of Grassland, 2003, 25(5): 48-52.
[25]
Hong F Z. Alfalfa Science (First edition)[M]. Beijing: Chinese Agricultural Press, 2009.
[26]
Peng L Q, Li X Y, Qi X, et al . The relationship of root traits with persistence and biomass in 10 alfalfa varieties. Acta Prataculturae Sinica, 2014, 23(2): 147-153.
[27]
Qin S, Zhang J, Dai H, et al . Effect of ridge-furrow and plastic-mulching planting patterns on yield formation and water movement of potato in a semi-arid area. Agricultural Water Management, 2014, 131: 87-94.
[28]
Chen B S. Experimental Guiding Books of Grassland and Forage Science Practice[M]. Lanzhou: Gansu Science and Technology Press, 1991.
[29]
Zhao Y. Study on Root System Growth Character and Their Correlation with the Yield of Alfalfa[D]. Lanzhou: Gansu Agricultural University, 2008.
[30]
Zhao Z J. The Study of Branch and Root Morphpmetrics of Medicago falcata [D]. Changchun: The Northeast Normal University, 2007.
[31]
Marquez-Ortiz J J, Johnson L D, Basigalup D H, et al . Crown morphology relationships among alfalfa plant introduction and cultivars. Crop Science, 1996, 36(3): 766-770.
[32]
Johnson L D, Marquez-Ortiz J J, Barnes D K, et al . Inheritance of root traits in alfalfa. Crop Science, 1996, 36(6): 1482-1487.
[33]
Johnson L D, Marquez J J, Lamb J F S, et al . Root morphology of alfalfa plant introductions and cultivars. Crop Science, 1998, 38(2): 497-502.
[34]
Li Y F, Li J S, Rao M J. Effects of drip fertigation strategies on root distribution and yield of tomato. Transactions of the Chinese Society of Agricultural Engineering, 2006, 22(7): 205-207.
[35]
Li F C, Ren X, Wang Q, et al . Effects of rainfall harvesting in ridges and furrows on root distribution patterns of oat in semi-arid area of Gansu, Northwest China. Chinese Journal of Ecology, 2013, 32(11): 2966-2972.
[36]
Geng H Z, Wu Y F, Cao Z Z. Chinese Alfalfa[M]. Beijing: Chinese Agricultural Press, 1995.
[37]
Sun Q Z, Han J G, Gui R, et al . Root and crown trait of alfalfa in Kerqin sandy land. Acta Agrestia Sinica, 2001, 9(4): 269-276.
[38]
Sun Q Z, Hou X Y, Wang Y Q. Alfalfa winter survival research. In: The Second China Alfalfa Development Conference Proceedings[C]. Beijing: Chinese Agricultural Press, 2003: 34-37.
[39]
Wu W, Chen Y H, Zhou X B, et al . Effect of different planting patterns on maize’s growth and yield. Chinese Agricultural Science Bulletin, 2005, 21(8): 101-106.
