Open AccessEFFECTS OF ORGANIC FERTILIZER AND BIOPRODUCTS ON YIELD, QUALITY AND ECONOMIC EFFICIENCY OF NU HOANG GUAVA PRODUCTION AT CU M’GAR DISTRICT, DAKLAK PROVINCE
Author(s) -
Minh Van Nguyen,
Chuyen Van Hoang,
Nga Bui Thi
Publication year - 2020
Publication title -
khoa học
Language(s) - English
Resource type - Journals
ISSN - 1859-4816
DOI - 10.35382/18594816.1.40.2020.612
Subject(s) - fertilizer , yield (engineering) , manure , brix , chicken manure , horticulture , organic fertilizer , irrigation , biology , agronomy , mathematics , toxicology , chemistry , sugar , food science , materials science , metallurgy
This study aims to determine the most suitable dose of the mixture of organic fertilizers and probioticsincluding Ong Bien fertilizer, manure and composts from fish and soybean via foliar spray and irrigation for 4-year-old Taiwan guava grown at Cumgar district, Daklak Province in 2019. The results showed thatthe application of 30 kg manure + 9 kg organic fertilizer (Ong Bien) with foliar spray of 8 liter fish emulsion + 8 liter soybean emulsion (for plant-1) led to an increase in flowering and fruiting rate, fruit weight and fruit quality. By this combined application, the acutal fruit yield, Brix and economic efficency of the guava reached29.60 tons ha-1 (39.62% higher in comparision with control), 10.15% (10.57% higher in comparision with control) and 463.95 milion VND ha-1 per year (30.17% higher in comparision with control), respectively.