| With spray irrigation for comparison (CK), the effects of trace irrigation pipe in sand culture in different depths in
solar greenhouse on spring growth, yield and water use efficiency of cucumber were studied. The results showed that, compared with CK treatment, the growth of cucumber in T3 treatment (depth at 25 cm) was significantly inhibited, while the
bioaccumulation, leaf net photosynthesis rate, fruit quality in T1 (depth at 5 cm), T2 (depth at 15 cm) treatments improved. The leaf conductivity, MDA and root activity were not significantly different among different treatments. The sand moisture contents of T1, T2, T3 treatments were lower than that of CK treatment, and the water use efficiency of T1, T2 treatments increased by 50.9%, 60.0%. Compared with CK, the yield of T1, T2 treatments was not significantly different, and the yield of T1 treatment increased by 1.9% than T2 treatment. The result indicated that, race irrigation pipe at depth of 5cm was best for cucumber cultured in sand in solar greenhouse. |
