A. Bernardi, G. M. Bettiol, Giulia Guillen Mazzuco, S. N. Esteves, P. P. Oliveira, J. Pezzopane
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引用次数: 9
摘要
材料与方法在2013/2014年生长季，在巴西SP州 o Carlos的Embrapa牛东南(21°57'S, 47°50'W, 860 m高程)进行了6 ha的田间试验。ICLFS种植桉树(GG100)，单行种植，植株间距15米，植株之间2米。牧场是尿草草。Piata。每年有三分之一的土地更新，播种玉米和Piatã草。土壤肥力参数(P、K +、阳离子交换量- CEC、碱基饱和度- v %和土壤有机质SOM)在1.5时进行评价;3.0;与树木距离7.5m，深度0-20 cm，一年生作物玉米生长前后。
Spatial variability of soil fertility in an integrated crop livestock forest system.
Material and Methods The 6-ha field experiment was carried out at Embrapa Cattle Southeast in São Carlos, SP, Brazil (21°57'S, 47°50'W, 860 m alt) during the growing season of 2013/2014. The ICLFS is planted with Eucalyptus urograndis (GG100) planted in single rows with 15m-distance and 2m between plants. Pasture is Urochloa brizantha cv. Piatã. Annually 1/3 of area is renewed with the corn sown together with the Piatã grass. Soil fertility parameters (P, K + , cation exchange capacity – CEC, basis saturation-V% and soil organic matter SOM) were evaluated at 1.5; 3.0; and 7.5m distance from the trees and 0-20 cm depth, before and after annual crop corn growth.
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