%0 Journal Article
%T Movement and distribution of phosphorus in soil under drip fertigation of KH2PO4 solution<br>滴施磷酸二氢钾后土壤中磷的移动和分布
%A DENG Lan-sheng
%A MAO Feng-wei
%A TU Pan-feng
%A GONG Lin
%A HUANG Lan-fen
%A ZHNAG Cheng-lin
%A <br>邓兰生
%A 毛丰伟
%A 涂攀峰
%A 龚 林
%A 黄兰芬
%A 张承林
%J 土壤
%D 2010
%I 
%X In order to evaluate the movement and distribution of phosphorus fertilizers in soils under drip fertigation, a soil column experiment was conducted to simulate drip fertigation. The results indicated that: (1) KH2PO4 moved vertically 22 cm in sandy loam soil, 16 cm in light loam soil and 14 cm in clay loam soil, respectively; P moved similar distance both in vertical and horizontal direction. (2) In lateritic soil, the higher P concentration was, the longer distance P moved in vertical direction. In terms of available P, vertical P movement in treatments of 200, 400, 800 and 1 000 mg/L were 12, 14, 20 and 22 cm, respectively; Both of total P and available P were significantly concentrated in the layer of 0 - 8, 0 - 12, 0 - 18 and 0 - 20 cm in the treatments of 200, 400, 800 and 1 000 mg/L, respectively. It is concluded that drip fertigation with high P concentration solution could increase the distance of P movement
%K Drip fertigation
%K Soil
%K Phosphorus
%K Movement<br>滴灌
%K 土壤
%K 磷
%K 移动
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=56F69E970C6E5190CDB409D28DD0E3C6&aid=7FB6E5FED9F672F893A260C2575A7819&yid=140ECF96957D60B2&vid=ECE8E54D6034F642&iid=B31275AF3241DB2D&sid=27A5865B8C0B85C3&eid=D4A72ABDCEDCE1BD&journal_id=0253-9829&journal_name=土壤&referenced_num=0&reference_num=0