Effect of Application Amount of Nitrogen Fertilizer on Production of Two Green Leafy Vegetables
WANG Aibo
HUO Zechun
ZHANG Zhifang
PAN Yizhan?
Abstract：In order to select the best application amount of nitrogen fertilizer for two green leafy vegeta-bles emerald green lettuce and white Amaranth, the plant height, leaves numbers, fresh weight and dry weight per plant of the two green leafy vegetables treated with different application amount of nitrogen fer-tilizer (N0 (CK):0 kg/ha,N1:75 kg/ha,N2:105 kg/ha,N3:150 kg/ha) were studied. The results showed that the application of nitrogen fertilizer could improve the leaves numbers per plant and the plant height of the two green leafy vegetables,which increased at first and then decreased with the increase of application amount of nitrogen fertilizer except the plant height of white Amaranth,reaching the highest value at N2 treatment;the application of nitrogen fertilizer could significantly improve the fresh weight and dry weight per plant,which increased at first and then decreased with the increase of application amount of nitrogen fertilizer,reaching the highest value at N2 treatment. Overall,105 kg/ha nitrogen fertilizer was the best to improve the growth and production of the two green leafy vegetables,and could save fertilizer.
Keywords：emerald green lettucewhite Amaranthnitrogen fertilizer application amountproduction
Publication Date：2015-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：3( 56-58 )