Japanese Journal of Grassland Science
Online ISSN : 2188-6555
Print ISSN : 0447-5933
ISSN-L : 0447-5933
Research Papers
Double Optimization of Cropping Operation System Using by No-Till Direct Interseeding of Rice in Wheat Stand in Warm Region
Naoya KawaradaYukimine NakanishiHiroya IzuokaShigeki TabataYukinori NakayamaJumpei Ohnishi
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JOURNAL OPEN ACCESS

2017 Volume 63 Issue 1 Pages 1-8

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Abstract

We performed field experiments on the forage rice cultivation system to examine suitable operating conditions and conducted comparative studies with the customary transplanting system, by interseeding rice in wheat stand using no-till direct seeder with V-shaped furrow for the double cropping operation system.

In the wheat cropping system the treading of wheat plants was carried out once, and interseeding of rice was carried out from mid-February to the initial growth of the wheat flag leaf. These improves the establishment of seedling of rice and minimized the decrease in growth of wheat, with consequent increased in dry matter yields of forage rice and wheat. Moreover, when the customary transplanting system and no-till direct interseeding of rice in wheat stand system were compared in the field experiments, the operating hours were found to be 5.9 hours for the interseeding system compared to 28.7 hours for the custom system during May and June, when there are serious working competition. This resulted in a significant reduction in operating hours. The mowed dry matter yield of rice and wheat was 24.7t/ha for the interseeding system and was equivalent to the yield obtained with the custom system.

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© 2017 by Japanese Society of glassland Science
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