Open AccessInvestigation on Current Status of Rice Fertilization in the Plain Area of Hanzhong Basin
Author(s) -
Wei Yang
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/310/5/052054
Subject(s) - fertilizer , human fertilization , ammonium bicarbonate , environmental science , agronomy , trace element , yield (engineering) , mathematics , chemistry , biology , materials science , ecology , organic chemistry , raw material , metallurgy
Scientific fertilization is the key to obtain a high-yield and good quality rice. In order to understand the present situation of rice fertilizer application in the Plain Area of Hanzhong Basin, a survey had been conducted. The investigation results showed that: in the Plain Area of Hanzhong Basin, N application was more higher, P 2 O 5 application was reasonable and K 2 O application was a little lower. Fertilization was very unbalanced and the application rates were quite different among farmers. The base to dressing ratio was unreasonable. All the P 2 O 5 , K 2 O and most of N were applied as base fertilizer, and only a few farmers use top dressing N fertilizer. In the frame of fertilizer variety, there is a phenomenon that using more ammonium bicarbonate than formula fertilizer, using more chemical fertilizer than organic fertilizer and using more macro element fertilizer than trace fertilizer.