Open AccessEffect of Maize Straw Composite Substrate on Tomato Seedlings Growth
Author(s) -
J Q Li,
Y Li,
C J Liu,
Fan Yang,
Qing Du,
He Xiao,
Jiqing Wang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/706/1/012028
Subject(s) - vermiculite , seedling , peat , sowing , agronomy , stalk , straw , dry weight , perlite , shoot , chemistry , bulk density , fermentation , horticulture , biology , soil water , food science , ecology
In order to make full use of the agricultural waste resource maize straw, the alternative organic matrix of peat was studied to realize agricultural recycling. In this study, with peat: vermiculite = 2:1(v/v) as the control, the physicochemical properties of the matrix of maize straw fermentation after mixed with vermiculite in different volumes (3:1, 2:1, 3:2, 1:1) and the effect of applying the composite substrate to the tomato seedling were studied. The results showed that the effect of vermiculite contents on dry bulk density of mixing substrate was positive, however the effect of vermiculite contents on total porosity of mixing substrate was negative; The pH value of maize stalk fermented substrate treatments were among 7.01-7.21, but the pH value of peat was acidic; the treatment, fermented maize stalk substrates: vermiculite=1:1 (v/v), can nurse strong tomato plug seedling after sowed 42 d, it does not differ significantly between the treatment and peat on plant height, number of leaves, shoot dry weight and dry weight of whole tomato plant; Also it did not differ significantly among all treatments on content of chlorophyll, chl a/b, and root system vigor of tomato seedlings. Therefore, it is suggested that in the production practice, corn stalk fermentation matrix and vermiculite 1:1 mix to carry out seedling, compared with peat seedling, sowing 3-5 days in advance, so as to achieve the effect of peat seedling.