USE OF AQUACULTURE EFFLUENT AS A SUPPLEMENTAL SOURCE OF NITROGEN-FERTILIZER TO WHEAT CROP

被引：17

作者：

ALJALOUD, AA ^{[1
]}

HUSSAIN, G ^{[1
]}

ALSADON, AA ^{[1
]}

SIDDIQUI, AQ ^{[1
]}

ALNAJADA, A ^{[1
]}

机构：

[1] RES INST NAT RESOURCES & ENVIRONM,FISH CULTURE PROJECT,POB 6086,RIYADH 11442,SAUDI ARABIA

来源：

ARID SOIL RESEARCH AND REHABILITATION | 1993年 / 7卷 / 03期

关键词：

AQUACULTURE; CROP YIELD; FERTILIZER; NITROGEN; UREA; WHEAT;

D O I：

10.1080/15324989309381353

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A field experiment was carried out on sandy-clay-loam soil on the use of aquaculture effluent as a supplemental source of nitrogen fertilizer to wheat crop in 1991-92. The mean ranges for different crop growth parameters under various fertilizer treatments were plant height between 51.9 and 74.8 cm (well water) and between 60.7 and 79.0 cm (aquaculture effluent); greenmatter yield between 6.9 and 22.8 Mg ha-1 (well water) and between 9.6 and 25.1 Mg ha-1 (aquaculture effluent); drymatter yield between 1.71 to 4.53 Mg ha-1 (well water) and between 2.28 to 4.89 Mg ha-1 (aquaculture effluent); total biomass between 5.5 and 18.7 Mg ha-1 (well water) and 7.1 and 18.8 Mg ha-1 (aquaculture effluent); grain yield 1.68 to 7.70 Mg ha-1 (well water) and 2.70 to 7.97 Mg ha-1 (aquaculture effluent); straw yield between 3.8 and 11.0 Mg ha-1 (well water) and between 4.4 and 10.9 Mg ha-1 (aquaculture effluent); and the number of tillers per plant from 2.06 to 4.63 (well water) and from 3.19 to 5.81 (aquaculture effluent). Overall, the results obtained with 25 to 50% nitrogen application under aquaculture effluent irrigation were comparable with those obtained with 75 and 100% nitrogen application under well water irrigation. In conclusion, a 50% saving in nitrogen application as an inorganic fertilizer can easily be achieved if crops are irrigated with aquaculture effluent containing around 40 mg N L-1.

引用

页码：233 / 241

页数：9

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