The characteristics of nitrogen(N) and phosphorus(P) loss under 5 land use patterns were studied in Sunjia small red soil watershed during the Course of rain.
研究了次降雨过程中红壤小流域5种不同土地利用方式土壤N，P养分流失特征。
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Combining with past researches, this research attempts to probe into the relationship between handwriting characteristics and nervousness (n), psychosis (p), extraversion or introversion (e) in EPQ.
Soil column method was used to study the characteristics of the movement, transformation, and leach of urea-N in soil added by different ways of the fertigation.