INFILTRATION-RATE AS AFFECTED BY AN ALFALFA AND NO-TILL COTTON CROPPING SYSTEM

被引：81

作者：

MEEK, BD ^{[1
]}

DETAR, WR ^{[1
]}

ROLPH, D ^{[1
]}

RECHEL, ER ^{[1
]}

CARTER, LM ^{[1
]}

机构：

[1] USDA ARS,US COTTON RES STN,SHAFTER,CA 93263

来源：

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL | 1990年 / 54卷 / 02期

关键词：

D O I：

10.2136/sssaj1990.03615995005400020036x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Cotton was direct-planted into alfalfa to determine if the high infiltration rates measured under alfalfa culture could be maintained in cotton under either a till or no-till system. Treatments were no-till or tillage to the 0.15-m depth just before the cotton was planted. Prior compaction levels created by harvest traffic applied to the alfalfa made the soil loose or compacted. Cotton was planted flat and irrigated as a basin. Infiltration rates measured 2 h after water was applied and averaged for the season were 101 (no-till, loose), 56 (till, loose) 83 (no-till, compacted), and 42 mm/h (till, compacted). All the infiltration rates were much higher than normally measured for cotton in these soils. Water flow in the 5-yr-old alfalfa was through the soil macropore system. High infiltration rates measured in the no-till cotton were also the result of flow through the macropores. -from Authors

引用

页码：505 / 508

页数：4

共 23 条

[1] EFFECTS OF ROOT GROWTH AND DECAY ON THE PERMEABILITY OF A SYNTHETIC SANDY LOAM [J].