With
the aim of building the suitable fertilization process for developing
sustainable land use practices and helping farmers to get more income, a field
study was carried out on maize CP999 in Winter 2014 and Spring 2015 on the
coastal sandy in Nghe An. The experiment was arranged in a randomized complete
block (RCBD) with three replicates, consisting of 5 treatments based NPK
fertilizer for one hectare (150N + 80P2O5 + 100 K2O + 400 kg of lime). CT1 -
NPK + 6 tons of manure (control); CT2 - NPK; CT3 - PK; CT4 - NK; CT5 - NP to
identify nutrient factor limiting development and yield of maize. Experimental
results showed that in the macro elements N is the most important factor
limiting yield, followed by K factor, and the final is P (in order N> K>
P). So we need to apply the research results to develop processes for maize
fertilization on sandy soil Nghe ensure high yield.
File: bai_bao_da_luong_cay_ngo.docx
Nguyễn Thị Bích Thủy