EVALUATION OF THE BRAY-1, CALCIUM ACETATE LACTATE (CAL), TRUOG AND COLWELL SOIL TESTS AS PREDICTORS OF TRITICALE GRAIN PRODUCTION ON SOIL FERTILIZED WITH SUPERPHOSPHATE AND ROCK PHOSPHATE

被引：13

作者：

BOLLAND, MDA

GILKES, RJ

机构：

[1] Western Australian Department of Agriculture, Baron-Hay Court, South Perth, 6151, Western Australia

[2] Soil Science and Plant Nutrition, University of Western Australia, Nedlands, 6009, Western Australia

来源：

FERTILIZER RESEARCH | 1992年 / 31卷 / 03期

关键词：

TRITICALE (XTRITICOSECALE); BRAY; 1; CALCIUM ACETATE LACTATE (CAL); TRUOG AND COLWELL SOIL TEST REAGENTS; TRIPLE SUPERPHOSPHATE; QUEENSLAND ROCK PHOSPHATE; NORTH-CAROLINA ROCK PHOSPHATE;

D O I：

10.1007/BF01051288

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

In a field experiment in Western Australia, six different levels of three different phosphorus (P) fertilizers (triple superphosphate, TSP; Queensland (Duchess) rock phosphate, QRP; North Carolina rock phosphate, NCRP) were applied at the start of the experiment in 1984. Grain yield of triticale (X Triticosecale) was measured from 1984 to 1988. In February-March of each year from 1985 to 1988, soil samples were collected to measure soil extractable P (soil test values) using four reagents (Bray 1, calcium acetate lactate (CAL), Truog and Colwell). Soil test values were related to triticale grain yields, determined either as absolute yield or percentage of the maximum yield, produced later on in each year. The relationship differed with fertilizer type, reagent and year. All four soil test reagents were equally predictive of yield. It is concluded that these soil P tests provide crude predictions of plant yield regardless of the reagent used.

引用

页码：363 / 372

页数：10

共 24 条

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