“barren cropping”的概念、定义、翻译、参考文献-科学参考

单词	barren cropping
释义	barren cropping Encyclopedia 农学瘦茬释 barren cropping瘦茬前茬作物对土壤有效养分消耗多，后茬作物必须大量施肥才能生长良好的一类茬口。又称白茬。
随便看	universal two-child policy universal unfolding universal uniformity universal validity universal variety universal woodworking machine universal λ-ring universe universe abundance universe age universe, cosmos universe evolution universe mean universe of a structure universe of discourse universe's age universe's age, cosmic age Universidad de El Salvador university and college campuses University Benchmark Association university charter University College London: Department of Information Studies (UK) University College London Libraries university council university culture

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。