充满希望和活力的榆林农业

Chinese Agricultural Science Bulletin ›› 2005, Vol. 21 ›› Issue (2) : 381-381. DOI: 10.11924/j.issn.1000-6850.0502381
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1杨述河.榆林土地资源利用与评价.北京:中国大地出版社,2002.51~54
2刘公社,阿兰?博让(法),彭克敬,等.向日葵研究与开发.北京:中国科学技术出版社,1994.187~191
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