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首页> 外文期刊>Acta Horticulturae >Decrease of nitrogen fertilizer application in tomato production in no-tilled field with hairy vetch mulch.
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Decrease of nitrogen fertilizer application in tomato production in no-tilled field with hairy vetch mulch.

机译：毛地黄覆盖地无垄田番茄生产中氮肥施用量的减少。

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The growth and yield of tomatoes were estimated when they were planted in a no-tilled field with hairy vetch (Vicia villosa) mulch (NT+HV) with 80, 160 and 240 kg/ha of nitrogen fertilizer, and compared with tomatoes grown in a tilled field with black polyethylene film mulch (Till+BP). Seeds of hairy vetch (50 kg/ha) were sown in the Field Center of Niigata University (Japan) on 21 October 1999, and hairy vetch (3200 kg/ha in dry weight) was mowed on 17 May 2000, to make residue mulch. Twenty percent of nitrogen was applied by fast-effect fertilizer and the rest (80%) by slow-effect fertilizer. Tomato cv. Momotaro was planted in NT+HV and Till+BP on 19 May 2000, and grown until early in September. The nitrate concentration in the petiole of the leaves near 2-3 cm fruit in diameter decreased from 50 or 60 days after planting in the Till+BP. However, it maintained more than 1500 ppm until 70-80 days after planting in NT+HV. The growth index of tomatoes grown in NT+HV with 80 kg/ha of nitrogen became higher after 50 days compared with Till+BP. The tomato yield in NT+HV was lower than that of Till+BP in the first and second fruit cluster in 80 kg/ha of nitrogen, but was higher from the 3rd to the 7th cluster. No definite effect of nitrogen fertilizer in the yield was recognized among 80, 160 and 240 kg in NT+HV. In 80 kg/ha of nitrogen fertilizer application, the total marketable yield of NT+HV was higher than that of Till+BP. There was no difference in total yield between NT+HV and Till+BP in 160 and 240 kg/ha. In no-tilled field with hairy vetch mulch, even if nitrogen fertilizer is decreased to 80 kg/ha, the recommended level for 'N reduced tomato production', the marketable yield will be the same level obtained in conventional production with 160 and 240 kg/ha of nitrogen.
机译：当将番茄种植在无til田中时，估计其生长量和产量为80、160和240 kg / ha氮肥的多毛紫菜（Vicia villosa）覆盖物（NT + HV），并将其与黑色聚乙烯薄膜覆盖的耕地（耕种+ BP）。 1999年10月21日，在日本新泻大学田间中心播种了多毛紫v种子（50公斤/公顷），并于2000年5月17日割下了多毛紫（种子（干重3200公斤/公顷），以覆盖覆盖物。 。速效肥料施用了20％的氮，慢速肥料施用了其余（80％）。番茄简历桃太郎于2000年5月19日在NT + HV和Till + BP种植，并一直生长到9月初。在Till + BP中种植后50或60天，直径2-3 cm的果实叶片叶柄中的硝酸盐浓度降低。但是，在NT + HV种植后的70-80天之前，它保持超过1500 ppm。与Till + BP相比，在氮+ 80 kg / ha的NT + HV下种植的番茄的生长指数在50天后更高。在第一个和第二个水果群中，氮+80 kg / ha时，NT + HV上的番茄产量低于Till + BP，但从第3个到第7个群集较高。在NT + HV中，在80、160和240千克之间未发现氮肥对产量的确定作用。在施用80 kg / ha的氮肥中，NT + HV的总可销售产量高于Till + BP。在160和240 kg / ha下，NT + HV和Till + BP之间的总产量没有差异。在无毛地膜覆盖的非平整田地中，即使氮肥降至80 kg / ha（“减少番茄产量”的建议水平），可销售的产量也将与常规生产时160和240 kg的水平相同/ ha的氮。

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