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Long-Term No-Tillage Direct Seeding Mode for Water-Saving and Drought-Resistance Rice Production in Rice-Rapeseed Rotation System 被引量:1
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作者 DU Xing-bin CHEN Chen +4 位作者 LUO Li-jun XIA Long-ping LIU Kang CHEN Yin-hua YU Xin-qiao 《Rice science》 SCIE 2014年第4期210-216,共7页
To study the effects of long-term no-tillage direct seeding mode on rice yield and the soil physiochemical property in a rice-rapeseed rotation system, a comparative experiment with a water-saving and drought-resistan... To study the effects of long-term no-tillage direct seeding mode on rice yield and the soil physiochemical property in a rice-rapeseed rotation system, a comparative experiment with a water-saving and drought-resistance rice (WDR) variety and a double low rapeseed variety as materials was conducted under no-tillage direct seeding (NTDS) mode and conventional tillage direct seeding (CTDS) mode for four years, using the CTDS mode as the control. Compared with the CTDS mode, the actual rice yield of WDR decreased by 8.10% at the first year, whereas the plant height, spikelet number per panicle, spikelet fertility, 1000-grain weight, grain yield, actual yield, and harvest index increased with no-tillage years, which led to the actual yield increase by 6.49% at the fourth year. Correlation analysis showed that the panicle length was significantly related to the actual yield of WDR. Compared with the CTDS mode in terms of the soil properties, the pH value of the NTDS mode decreased every year, whereas the contents of soil organic matter and total N of the NTDS mode increased. In the 0-5 cm layer of the NTDS mode, the soil bulk decreased, whereas the contents of soil organic matter, total N, and available N increased. In the 5-20 cm layer of the NTDS mode, the available N and K decreased, whereas the soil bulk, contents of soil organic matter, and total N increased. In summary, the NTDS mode increased the rice yield, and could improve the paddy soil fertility of the top layer. 展开更多
关键词 no-tillage direct seeding rice yield soil physiochemical property water-saving and drought-resistance rice rotation system
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Effects of Organic Fertilizer Application Amount on Seedling Quality under No-tillage Semi-Solid State Direct Seeding
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作者 LI Jing-yi HUANG Huang +4 位作者 LIANG Yu-gang WANG Ren WU Jia LV Guang-dong YANG Fei-xiang 《Agricultural Science & Technology》 CAS 2019年第2期1-10,共10页
With early rice variety Zhongzao 39 as test material,this paper investigated the effects of organic fertilizer application rate on seedling quality under no-tillage semi-solid state direct seeding.The results showed t... With early rice variety Zhongzao 39 as test material,this paper investigated the effects of organic fertilizer application rate on seedling quality under no-tillage semi-solid state direct seeding.The results showed that the seedling quality of no-tillage semi-solid direct seeding was better than that of traditional direct seeding,and different application rates of organic fertilizer under no-tillage semi-solid direct seeding also had signi ficant effects on seedling emergence rate,dry matter weight in ground and underground,stem base width,root activity,chlorophyll content and seedling growth index of rice seedlings.When the organic fertilizer dosage was A4(0.10∶1),it was most beneficial to the growth and development of rice seedlings under no-tillage semi-solid state direct seeding,it could effectively improve the quality of rice seedlings and enhance their resistances,the cultivated seedlings could lay a good foundation for high yield of rice in late stage. 展开更多
关键词 RICE no-tillage Semi-solid state direct seeding Organic fertilizer seedling quality
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Effects of Different Soil Preparation and Fertilizer Application Methods on the Growth and Yield of the Rice-Crayfish Rotation Direct Seeding Rice Nongxiang 32 被引量:1
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作者 DAI Li TAO Shu-hua +4 位作者 HU Wen-bin LIU Ye LI Wen-zhong FANG Bao-hua ZHAO Zheng-hong 《Agricultural Science & Technology》 CAS 2021年第2期6-12,共7页
In order to improve the yield and fertilizer utilization of the ricecrayfish rotation and direct seeding rice Nongxiang 32,the effects of different soil preparation and fertilizer application methods on the growth,yie... In order to improve the yield and fertilizer utilization of the ricecrayfish rotation and direct seeding rice Nongxiang 32,the effects of different soil preparation and fertilizer application methods on the growth,yield and fertilizer utilization of the variety were studied.The results showed that,under the rice-crayfish rotation and direct seeding farming mode,the contributions of seed setting rate,1000-grain weight,yield,and fertilizer contribution rate to yield of Nongxiang 32 in the treatments with rotary tillage with base fertilizer,rotary tillage without base fertilizer and no-tillage with base fertilizer were relatively higher than those in the treatments with rotary tillage without fertilizer,no-tillage without fertilizer and no-tillage without base fertilizer,and there were no significant differences between the three treatments.Rotary tillage with base fertilizer and rotary tillage without base fertilizer significantly increased the total number of stems and tillers,total number of ears,and number of effective ears.Rotary tillage and application of base fertilizer also significantly increased the number of tillers,plant weight and weed suppression ability in the early stage of rice growth.Therefore,in the different soil preparation and fertilizer application methods,the application of base fertilizer with rotary tillage was the best,followed by rotary tillage without base fertilizer and no-tillage with base fertilizer. 展开更多
关键词 Rice-crayfish rotation Direct seeding Rotary tillage no-tillage Fertilization method
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密度对免耕直播杂交油菜德新油59产量及主要性状的影响 被引量:8
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作者 刘丽 曾川 +1 位作者 徐洪志 金良 《贵州农业科学》 CAS 2016年第8期25-27,共3页
探索免耕直播条件下油菜适宜的田间密度,为重庆市油菜免耕直播技术推广应用提供参考。以杂交油菜德新油59为试验材料进行免耕直播密度试验(相同用种量不同定苗密度),研究免耕直播不同密度对油菜产量及主要农艺性状的影响。结果表明:油... 探索免耕直播条件下油菜适宜的田间密度,为重庆市油菜免耕直播技术推广应用提供参考。以杂交油菜德新油59为试验材料进行免耕直播密度试验(相同用种量不同定苗密度),研究免耕直播不同密度对油菜产量及主要农艺性状的影响。结果表明:油菜株高、一次分枝数、主序长度、主序果数、分枝果数及单株产量均随田间密度增加而降低;群体产量随播种密度的增加呈先升高后降低。以田间密度30万株/hm^2的产量最高,为3 450kg/hm^2。 展开更多
关键词 德新油59 免耕直播 种植密度 产量性状
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Yield potential and stability in super hybrid rice and its production strategies 被引量:13
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作者 HUANG Min TANG Qi-yuan +1 位作者 AO He-jun ZOU Ying-bin 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2017年第5期1009-1017,共9页
China's Super Hybrid Rice Breeding Program has made significant progress over the past two decades. In this paper, we reviewed our studies on the yield potential and stability in super hybrid rice and discussed the s... China's Super Hybrid Rice Breeding Program has made significant progress over the past two decades. In this paper, we reviewed our studies on the yield potential and stability in super hybrid rice and discussed the strategies for super hybrid rice production. The results of our studies show that rice yield potential has been increased by 12% in super hybrid cultivars as compared with ordinary hybrid and inbred cultivars. The higher grain yields in super hybrid rice cultivars are attributed to larger panicle size coupled with higher biomass production or higher harvest index. However, grain yields in super hybrid rice cultivars vary widely among locations depending on soil and climatic factors. Therefore, it is important to tailor target yield to local conditions in super hybrid rice production. The target yield for super hybrid rice production can be determined by the average yield method or the regression model method. Improving soil quality is critical to achieving the target yield in super hybrid rice production. Favorable crop rotations such as rice-oilseed rape and novel soil management practices, such as biochar addition, are effective approaches to improve soil quality. It is needed to develop simplified cultivation tech- nologies for super hybrid rice to meet the changes in socioeconomic environments during the period of transition. There are such technologies as no-tillage direct seeding and mechanized transplanting at high hill density with single seedling per hill. 展开更多
关键词 mechanized transplanting no-tillage direct seeding super hybrid rice target yield yield potential yield stability
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Friction wheel transmission of no-tillage corn planters 被引量:1
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作者 Jia Honglei Zhang Zhuo +3 位作者 Chen Zhi Zheng Tiezhi Zhao Jiale Guo Mingzhuo 《International Journal of Agricultural and Biological Engineering》 SCIE EI CAS 2017年第4期87-97,共11页
To overcome the unfavorable factors of ground wheel-driven chain transmission when a no-tillage planter operates on straw mulching fields,a friction wheel transmission based on ground wheel transmission was designed i... To overcome the unfavorable factors of ground wheel-driven chain transmission when a no-tillage planter operates on straw mulching fields,a friction wheel transmission based on ground wheel transmission was designed in this research.The stability,i.e.,the effects of friction wheel tyre pressure on stability of machine transmission was investigated via validation of main factors.The relationships among tyre pressure,deformation and load were determined via theoretical analysis.The tyre pressure extreme for transmission is 25.90 psi,the maximum pressure imposed on the friction wheel tyre is 14 kN,the maximum deformation of friction wheel is 8.7 mm.The stabilities of friction wheel slip rate and seeding distance were investigated via field tests and alteration of friction wheel tyre pressure.After processing the test data,it can be found that the minimum tyre pressure for acquisition of friction wheel slip rate was 24.35 psi.After processing the data of seeding distance,it can be validated that the tyre pressure was kept unchanged following the optimal transmission effect of the transmission through the abrupt change of working speed,which further proved the feasibility of the new friction wheel transmission.The transmission of friction wheel can reduce 14.67%in variation coefficient of seed spacing at the speed of 5 km/h,and 16.22%at the speed of 8 km/h. 展开更多
关键词 no-tillage planter CORN friction wheel transmission slip rate field test variation coefficient seeding distance
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Design of the real-time detection system based on LabVIEW for no-till seeder working performance 被引量:3
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作者 Huibin Zhu Cheng Qian +1 位作者 Zihao Guo Lizhen Bai 《International Journal of Agricultural and Biological Engineering》 SCIE EI CAS 2021年第5期100-106,共7页
In order to ensure the working performance of the seeder,reduce the labor intensity of manual testing,and improve the efficiency and accuracy of the detection,a real-time detection system for detecting the performance... In order to ensure the working performance of the seeder,reduce the labor intensity of manual testing,and improve the efficiency and accuracy of the detection,a real-time detection system for detecting the performance of no-till seeders was designed based on the LabVIEW software platform of virtual instrument technology and the MCC USB-231 data acquisition card.The detection system can be used to detect the seeding quality index and residue cover index.The detection of the seeding quality index included the middle detection between the metering device and the opener,the end detection between the opener and the furrow.The result of the field test showed that the detection accuracies of seed quantity,multiple index,and miss index were 94.51%,92.83%,and 91.81%,respectively.The fault position can be accurately determined,and the measurement accuracy of residue cover index was 94.54%.The working performance of the no-tillage seeder can be monitored by the detection system to avoid the occurrence of reseeding and miss-seeding and improve production efficiency. 展开更多
关键词 LABVIEW no-tillage seeder seeding quality real-time detection residue cover index
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