ZHAO Caiyi, WANG Yuanyuan, DONG Qingjun, et al. Influence of Different Irrigation and Fertilization Treatments on the Growth of[J]. 2019, 33(4): 161-166.
DOI:
ZHAO Caiyi, WANG Yuanyuan, DONG Qingjun, et al. Influence of Different Irrigation and Fertilization Treatments on the Growth of[J]. 2019, 33(4): 161-166. DOI: 10.13870/j.cnki.stbcxb.2019.04.023.
Influence of Different Irrigation and Fertilization Treatments on the Growth of
We studied the effects of different irrigation and fertilization treatments on the growth of Viciavillosa Rothvar (Vetch) and the effects of the green manure on the growth of later-maize yield and soil fertility through field experiments. The results showed that both irrigation and fertilization significantly promoted the growth of Vetch. In the green manure season
irrigation could significantly increase the biomass
root activity
nitrogen and phosphorus nutrients accumulation of Vetch
whether fertilized or not. The Vetch biomass
root activity
nitrogen and phosphorus nutrients accumulation of NPW (applying nitrogen
phosphorus fertilizer and irrigation in green manure season) and CKW (no fertilization in green manure season
only irrigation treatment) consistently increased by 34.58% and 56.10%
26.49% and 37.92%
43.47% and 146.89%
103.84% and 113.94%
respectively
compared with the corresponding no irrigated treatment. The amount of nutrients returned from the residual Vetch were 125.32~274.49 kg/hm2
which accounted for 26.95%~59.03% of the total nutrients of chemical fertilizer in maize season. Compared with CF treatment (winter idle land treatment)
the green manure growing under different fertilization and irrigation treatments promoted maize yield and nutrients accumulation and increased soil nutrients
and among the treatments
the effect of NPW treatment was the best. Under the same annual nutrient condition
15.56% of nitrogen or 50.00% of phosphorus fertilization in the maize season transferred forward to the green manure growing season
which could significantly increase the amount of green manure nutrient returned to the field
the maize yield (8.39%~31.19%) and nutrients accumulation (7.31%~29.20%). In conclusion
under the conditions of appropriate irrigation and fertilization
the biomass of Vetch increased significantly
which had consistent increased the yield and nutrients accumulation of later-maize. The results could provide data support and practical basis for the application of green manure infield managements and fertilizer reduction in China.
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