ZHAO Jihao, LI Ying, QIAN Bichang, et al. Effects of Straw Return and Tillage on Soil Properties and Yield of Multi-cropping Peanut After Wheat[J]. 2019, 33(5): 272-280.
DOI:
ZHAO Jihao, LI Ying, QIAN Bichang, et al. Effects of Straw Return and Tillage on Soil Properties and Yield of Multi-cropping Peanut After Wheat[J]. 2019, 33(5): 272-280. DOI: 10.13870/j.cnki.stbcxb.2019.05.040.
Effects of Straw Return and Tillage on Soil Properties and Yield of Multi-cropping Peanut After Wheat
Wheat-peanuts double cropping system is an important way to solve the contradiction between grain and oil competition and achieve both self-sufficiency. Seeding peanut directly after wheat harvest is the main cultivation method of wheat-peanuts double cropping system. In this experiment
two treatment factors of straw return and tillage were designed after wheat harvesting
and six treatments were conducted rotary tillage with straw remove (RT)
rotary tillage with straw return (RTS)
no-tillage with straw remove (NT)
no-tillage with straw mulch (NTS)
deep tillage with straw remove (DT) and deep tillage with straw return (DTS). The effects of straw return and tillage on soil physical and chemical properties and peanut yield were studied. The results showed that different tillage methods had different effects on soil physical and chemical properties. In 0-10 cm soil layer
no-tillage increased the mass ratio of large-size aggregates compared with deep tillage and rotary tillage
improved the stability of aggregates and increased the number of bacteria
fungi
actinomycetes. The deep tillage mainly improved the soil physical and chemical properties of the soil layers of 10-20 and 20-30 cm. Deep tillage increased dry matter accumulation
increased peanut pod yield and seed kernel yield. Under the same tillage
compared with the straw remove
the straw return reduced the soil bulk density
increased soil porosity and the mass ratio of coarse aggregates. Soil organic carbon and total nitrogen contents were increased
and the aggregates stability and the number of soil bacteria
fungi
actinomycetes were improved. The straw return increased dry matter accumulation
and consequently increased peanut pod yield and seed kernel yield. Compared with DT treatment
DTS treated pod yield and seed kernel yield increased by 10.89% and 14.65% respectively. Compared with RT treatment
RTS pod yield and seed kernel yield increased by 10.00% and 11.77% respectively. Compared with NT treatment
NTS pod yield and seed kernel yield increased by 16.31% and 19.82% respectively. Compared with the other treatments
DTS not only improved soil physical and chemical properties
but also increased peanut pod yield and seed kernel yield.
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Related Institution
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