HIỆU QUẢ CỦA BÓN BÙN ĐÁY MƯƠNG HỆ THỐNG CANH TÁC LÚA-TÔM ĐỐI VỚI ĐỘ PHÌ NHIÊU ĐẤT VÀ NĂNG SUẤT LÚA Ở HUYỆN THỚI BÌNH, TỈNH CÀ MAU

Translated title of the contribution: Efficiency of sludge on soil nutrients and the yields of rice grown in rice-shrimp cropping system in Thoi Binh district, Ca Mau province

Quoc Van Huynh , Khoi Chau Minh, Sinh Van Nguyen, Tri Quang Le , Linh Tu Thi , Jason Condon, Jesmond Sammut

Research output: Contribution to journalArticlepeer-review

Abstract

This study was conducted to evaluate the effect of sludge admentment on soil nutrients and rice yields in rice-shrimp cropping system. The experiment was set up in a randomized complete block design with five treatments (NT), including: NT1 - without fertilizers; NT2 – applied with 5-cm depth of sludge; NT3 - applied with NPK fertilizers at 60 N-40 P2O5-30 K2O kg/ha; NT4 - applied with NPK fertilizers at 2/3 rate of NT3 (40 N-27 P2O5-20 K2O kg/ha); and NT5 - a combination of NT2 and NT4. There were 4 replications for each treatment. The results showed that the amount of available nitrogen mineralized in the treatments with sludge application was significantly higher than that of no sludge application (p<0.05). In the soil, the available nitrogen and phosphorus contents analyzed in NT2 and NT5 were significantly higher than those in other treatments (p<0.05) at the respective 15 days and 35 days after transplantation. The results revealed that applying sludge could replace partially chemical fertilizers for rice crop in rice-shrimp cropping system, showed by significantly higher shoot numbers, plant heigh and yield in the treatments applied with sludge.
Translated title of the contributionEfficiency of sludge on soil nutrients and the yields of rice grown in rice-shrimp cropping system in Thoi Binh district, Ca Mau province
Original languageOther
Article number54
Pages (from-to)42-50
Number of pages9
Journal Can Tho University Journal of Science
Volume54
DOIs
Publication statusPublished - 03 Aug 2018

Grant Number

  • RM100458

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