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首页> 美国卫生研究院文献>Scientific Reports >Yield effect of applying earthworm castings produced during the oilseed rape-growing season in rice-oilseed rape cropping fields to rice
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Yield effect of applying earthworm castings produced during the oilseed rape-growing season in rice-oilseed rape cropping fields to rice

机译：在水稻油菜田将油菜油菜生长季节生产的earth铸件施用到水稻的产量效应

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摘要

In-field earthworm density can be increased by planting oilseed rape during the non-rice growing season as compared to maintaining the rice-growing fields in fallow. This study was conducted to determine the effect on rice yield of earthworm castings produced during the oilseed rape-growing season in rice-oilseed rape cropping fields and to identify the critical factors that contribute to the yield effect. Field microplot experiments were conducted in 2016 and 2017. In 2016, a rice cultivar was grown under a factorial combination of absence (EC0: 0 kg m−2) and presence of earthworm castings (EC1: 17 kg m−2) with three N application rates (9, 12 and 15 g m−2). In 2017, nine rice cultivars were grown under EC0 and EC1 with the moderate N rate as was used in 2016. Results showed that application of earthworm castings produced during the oilseed rape-growing season in rice-oilseed rape cropping fields had a significant positive yield effect on rice. This was attributed to increased panicle m−2 and total aboveground biomass while spikelets panicle−1, spikelet filling percentage, grain weight, and harvest index were not affected. Our study indirectly provides a new evidence that oilseed rape is an excellent previous crop for cereals.
机译：与在水稻休耕地保持稻田相比，在非水稻生长季节种植油菜可以增加earth的密度。本研究旨在确定在油菜油菜田油菜油菜生长季节生产的casting对水稻产量的影响，并确定造成产量影响的关键因素。在2016年和2017年进行了田间微区试验。2016年，在缺席（EC0：0 kg m −2 ）和有casting铸件（EC1：17 kg）的分解条件下种植了一个水稻品种m −2 ），具有三个N施用率（9、12和15μgm -2 ）。 2017年，在EC0和EC1下有9个水稻品种在2016年使用，氮肥水平适中。结果表明，在油菜油菜生长季节生产的casting铸件在水稻油菜油菜种植领域的应用具有显着的正产量对大米的影响。这归因于穗数m −2 和地上总生物量的增加，而小穗穗数 -1 ，小穗填充率，籽粒重量和收获指数均未受到影响。我们的研究间接提供了一个新的证据，证明油菜籽是谷物的一种优良的先前作物。

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