Studies On The Fertilizer Application Levels Of Tomato Substrates Culture In The Green-house

In the substrates of V(Slag): V(Peanut-shell)=3:l, The effects of different fertilizer application levels on tomato growth, development, yield and quality on substrates culture in the green-house was studied.The results are summarized as follows :l)Effects of different fertilizer application formula on plant growth and development was studied. A3(base-fertilizer: top-application=3:3) has the greatest influence on plant growth index in the flowering period; A2(base-fertilizer: top-application=2:3) has the greatest influence on plant growth index in the reproductive period. 2) Different fertilizer application levels affect tomato growth and development .Before 20th, February, B4(4000kg/667m2 of bake fowl-mach, 200kg/667m2 of (NH4)2HPO4, 200kg/667m2 of K2SO4) has the greatest influence;after 20th,March, B2) 2400kg/667m2 of bake fowl-mach, 120kg/667m2 of (NH4)2HPO4, 120kg - 667m2 of K2SO4) has the greatest influence on yield to 5850 kg/667m2; B4 has the most of Vc to 10.04mg/100g; B4 has the most of soluble matter to 4.71%; B2 has the best of sugar/acid ratio to 6.71. 3)A(fertilizer application formula) and B(fertilizer application level) are summarized. A2B2 (base-fertilizer: top-application =2:3;2400kg/667m2 of bake fowl-mach, 120kg/667m2 of (NH4)2HPO4, 120kg/667m2 of K2SO4) is the best.