首页> 外文期刊>The Journal of Horticultural Science & Biotechnology >Effects of hairy vetch, rye, and alternating cultivation of rye-vetch cover crops on soil nutrient concentrations and the production of red pepper (Capsicum annuum L.).
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Effects of hairy vetch, rye, and alternating cultivation of rye-vetch cover crops on soil nutrient concentrations and the production of red pepper (Capsicum annuum L.).

机译:紫v菜,黑麦和黑cultivation菜覆盖作物的交替栽培对土壤养分含量和红辣椒(辣椒(Capsicum annuum L.))产量的影响。

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摘要

Most organic farmers in South Korea use a synthetic plastic film mulch to control weeds, plus high amounts of organic nutrients sourced from outside the cropping area, due to a lack of information on crop rotations using legume or deep-rooting cover crops. We have evaluated the effects of cover crop rotation on soil and plant nutrition during red pepper (Capsicum annuum L.) production from 2002 to 2005. The four treatments applied were: (i) a conventional farming (CF) system without cover crop rotation, or (ii) three organic farming (OF) systems, which either rotated the annual production of red peppers with hairy vetch (OF+HV), or rye (OF+R) from 2002 to 2004, or had an alternating cultivation of rye in 2002 and in 2004 with hairy vetch in 2003 (OF+R-HV). The OF+R system increased the below-ground biomass [39 MT ha-1, fresh weight (FW)] of the rye cover crop, but the above-ground biomass of the cover crop (22 MT ha-1 FW) was similar to those in the OF+HV and OF+R-HV systems. All OF systems, especially OF+HV, increased the soil pH, as well as P, K, Ca, and Mg concentrations to a soil depth of 0-20 cm in 2003, and pH, total-N, and K concentrations in 2005. Soil pH, electrical conductivity, and macro-nutrient concentrations decreased from 20-100 cm soil depth. All three OF systems reduced the bulk density of the soil and increased soil porosity compared to the CF system. Higher mineral nutrient concentrations in plants grown in the CF system compared to the three OF systems occurred only for Mg in 2003. The CF system increased marketable fruit yields, but did not increase the annual gross income. The highest crop value was observed in the OF+HV system. There was a net loss of N (-9 kg ha-1) in the OF+HV system in all 3 years, while the OF+R system had the highest positive balance level of N (54 kg ha-1). Therefore, the leguminous cover crop (hairy vetch) was useful as a green manure to increase annual gross incomes, increase N-use efficiency, and reduce soil N losses.
机译:由于缺乏有关使用豆类作物或深根覆盖作物进行轮作的信息,韩国大多数有机农户使用合成塑料薄膜覆盖物来控制杂草,以及大量来自耕作区以外的有机养分。我们评估了2002年至2005年红辣椒(Capsicum annuum L.)生产过程中轮作作物对土壤和植物营养的影响。所采用的四种处理方法是:(i)没有轮作作物的常规耕作(CF)系统,或(ii)三个有机耕作(OF)系统,或者从2002年到2004年轮流生产具有长毛紫菜(OF + HV)或黑麦(OF + R)的红辣椒,或者在2007年间交替种植黑麦。 2002年和2004年,2003年(OF + R-HV)出现etch毛。 OF + R系统增加了黑麦覆盖作物的地下生物量[39 MT ha -1 ,鲜重(FW)],但覆盖作物的地下生物量(22 MT) ha -1 FW)与OF + HV和OF + R-HV系统中的相似。所有OF系统,尤其是OF + HV,在2003年将土壤pH值以及P,K,Ca和Mg浓度提高到0-20 cm的土壤深度,在2005年将pH,总氮和K浓度增加。土壤pH值,电导率和大量营养物浓度从20-100 cm土层深度降低。与CF系统相比,这三个OF系统都降低了土壤的容重并增加了土壤孔隙率。与三个OF系统相比,CF系统中生长的植物中的矿质养分含量较高,仅2003年才发生镁。CF系统增加了可销售的水果产量,但没有增加年总收入。在OF + HV系统中观察到最高的作物价值。在过去的三年中,OF + HV系统的净氮净损失为(-9 kg ha -1 ),而OF + R系统的正平衡水平最高,为N(54 kg ha -1 )。因此,豆科农作物(绿etch菜)可用作绿肥,可增加年总收入,提高氮素利用效率并减少土壤氮素损失。

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