EFFECTS OF COMBINATIONS OF TRIPLE SUPERPHOSPHATE AND A REACTIVE PHOSPHATE ROCK ON YIELD AND PHOSPHORUS UPTAKE BY CORN

被引：34

作者：

CHIEN, SH ^{[1
]}

ADAMS, F ^{[1
]}

KHASAWNEH, FE ^{[1
]}

HENAO, J ^{[1
]}

机构：

[1] TENNESSEE VALLEY AUTHOR, NATL FERTILIZER DEV CTR, AGR RES BRANCH, MUSCLE SHOALS, AL 35662 USA

来源：

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL | 1987年 / 51卷 / 06期

关键词：

FARMS; -; Crops; GREENHOUSES; PHOSPHATES; Efficiency;

D O I：

10.2136/sssaj1987.03615995005100060045x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

A combination of finely ground phosphate rock (PR) and triple superphosphate (TSP) represents a method that can improve the agronomic value of PR at a lower cost than would be required to manufacture the conventional, fully acidulated fertilizers from that same rock. A reactive PR from North Carolina was evaluated for its effectiveness as a P source when used in conjunction with TSP at P rates up to 266 mg P kg** minus **1 in a short-term (6-week) greenhouse experiment. The soil used was a limed Mountview silt loam (Typic Paleudult) with pH 6. 2. As measured by dry-matter yield and P uptake, P availability from PR appeared to increase with increases in the proportions of TSP to PR in the TSP-PR mixtures.

引用

页码：1656 / 1658

页数：3

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