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Spatial and Temporal Variability of Soil Organic Matters in Se-rich Areas of Hainan Island in Recent 30 Years

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Agricultural Biotechnology 2018年第4期7卷 242-245页

作者： Zhu CEN Tingzhong WANG Rongxiang WANG huande feng Wuzhishan Agricultural Technology and Machinery Center Wuzhishan 572200China Hainan Soil and Fertilizer Station Haikou 570203China Tropical Crops Genetic Resources Institute CATASDanzhou 571737China

[Objectives] The aim was to reveal the distribution of soil organic matter content in cultivated land in the Se-rich areas of Hainan in 1980and 2010, so as to provide reference for the study on the evolution of soil organic matter content.[Methods] With the combination of field investigation with indoor analysis, the characteristics of organic matter content in the Se-rich areas of Hainan in 1980 and 2010 was revealed by means of spatial analysis, and the differences were analyzed.[Results] In the last 30 years, the proportion of 20-30 g/kg of soil organic matter content in the Se-rich areas of Hainan was reduced, but the content of soil organic matter in the area generally increased. The average value of the content of organic matter in the area was increased from 25.3 g/kg in the 1980s to 28.1 g/kg, but its spatial distribution was uneven.[Conclusions] The farmers should be guided to change the fertilization structure, and attention should be paid to the application of organic fertilizer, so as to improve the soil organic matter content.

关键词： Hainan Se-rich area Organic matter spatial distribution

Distribution of Nutrient Content in Soil and Leaves of Adult Areca catechu Trees

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Agricultural Biotechnology 2018年第6期7卷 146-148,218页

作者： huande feng Hua WANG Haijie HUANG Dengfeng WANG Institute of Tropical Crops Genetic Resources Chinese Academy of Tropical Agricultural Sciences

The annual dynamic changes of nutrient content in soil and leaves of adult Areca catechu trees in the *** producing area Tunchang were studied by fixed point observation method to provide the scientific basis for the rational fertilization of *** results showed that the soil of the *** plantation was weakly acidic on the whole,and soil pH was *** phosphorus content was extremely low,only 5.46 mg/*** content in *** leaves was the highest( up to 20.24 g/kg),while phosphorus content was the lowest( only 0.31 g/kg).The differences in nutrient content were related to the characteristics of nutrient *** was a difference in nutrient content of *** leaves during the annual growth *** the maximum nutrient requirement period of *** trees was from April to September,the important fertilization period of *** trees was also from April to September.

关键词： Areca catechu L. Soil Leaves Nutrient content Dynamic changes Hainan

Distribution of Soil Nutrients in Se-rich Areas of Hainan Island

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Agricultural Biotechnology 2018年第4期7卷 157-160,171页

作者： Qing MAI Tingzhong WANG huande feng Dengfeng WANG Agricultural Science Institute of Tunchang Tunchang 571600China Hainan Soil and Fertilizer Station Haikou 570203China Tropical Crops Genetic Resources Institute CATASDanzhou 571737China

[Objectives] The aim was to reveal the distribution of soil nutrients in Se-rich area of Hainan and to clarify their specific contents, so as to provide references for the development of Se-rich area agriculture in Hainan.[Methods] With the se-rich area in Hainan as the object, field investigation and indoor analysis were combined to elucidate the nutrient status of cultivated soil in the area and analyze its nutrient distribution.[Results] The soil in the se-rich area in Hainan province was generally acidic with the average soil pH value of 5.0. The difference in soil pH between different landforms and different altitudes was not significant, ranging from 4.9 to 5.3. Soil available P and available K contents were low to intermediate, and the soil available N content was moderate. The farming system, chemical fertilizer application structure and meteorological factors were the main causes of the distribution of soil nutrient elements. The soil exchangeable calcium and magnesium content was rich, and the distribution of trace elements in the arable soil of different terrains and elevations was closely related to the distribution of soil parent material in the region. The increase of soil organic matter content in arable land could be achieved by increasing the application of organic fertilizer and guiding the farmers to enhance the application of straws to fields.[Conclusions] The application of soil N, P and K fertilizers should be combined with the application of soil organic fertilizers to improve the soil fertility of cultivated land.

关键词： Hainan selenium-rich area soil nutrient spatial distribution

Distribution of Nutrients in Arable Land Soil of Western Hainan

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Agricultural Science & Technology 2016年第10期17卷 2390-2393页

作者：王华冯焕德王荣香中国热带农业科学院热带作物品种资源研究所海南儋州571737

[Objective] This study aimed to reveal distribution characteristics of soil nutrients in tropical farmland, thereby providing a reference for cropland management and balanced fertilization in the tropical area. [Method] Combining field survey and laboratory analysis, distribution status of nutrients in arable land of Baisha Li Autonomous County of Hainan Province was investigated. [Result] The soil in Baisha Li Autonomous County was acidic in overall with average pH value of 5.0. it had medium organic matter level （average of 19.3 g/kg） and rich alkali-hydrolyzable nitrogen content, but was lack of available phosphorus and available potassium. The spatial distribution of available nitrogen, available phosphorus and available potassi- um in the soil was uneven. The spatial distribution of soil nutrients was mainly related to soil parent materials of the investigated area and pH value of the investigated soil. [Conclusion] According to the distribution characteristics of nutrients in the soil, awareness of land use and land maintenance should be strengthened, application amount of organic fertilizers should be increased, chemical fertilizers should be applied rationally, and fertilization structure should be optimized in the future.

关键词： Farmland Soil nutrients Tropical area Nutrient balance

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基于SWOT分析的海南省槟榔产业发展思考

南方农业 2019年第22期13卷 63-65页

作者：王华冯焕德王登峰中国热带农业科学院热带作物品种资源研究所

结合海南省槟榔产业发展现状,利用SWOT分析法分析海南省槟榔产业的优势、劣势、机遇和威胁,提出"加大槟榔新品种选育,扶持原料基地建设;推广种苗优选技术,建立专业化种苗基地;提倡科学施肥,提高种植效益;加大槟榔科研扶持;加大对槟榔多... 详细信息

结合海南省槟榔产业发展现状,利用SWOT分析法分析海南省槟榔产业的优势、劣势、机遇和威胁,提出"加大槟榔新品种选育,扶持原料基地建设;推广种苗优选技术,建立专业化种苗基地;提倡科学施肥,提高种植效益;加大槟榔科研扶持;加大对槟榔多元化产品的研发和加工,化解单一产品的风险"等发展建议.

关键词： SWOT 槟榔产业现状发展对策海南省

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渭北苹果园滴灌施氮肥对土壤氮迁移的影响

林业科学 2013年第10期49卷 35-39页

作者：李丙智冯焕德张黎张永茂张林森韩明玉西北农林科技大学园艺学院杨凌712100 甘肃省农业科学院兰州730070

采用滴灌和浇灌2种灌溉方式,结合梯度施肥和测定土壤溶液中氮含量,研究渭北旱塬矮化红富士苹果园不同氮素形态在土壤中的迁移、富集和转化特性。结果表明:滴灌施肥显著降低氮素的迁移、富集和转化作用;在不同氮素形态中,以urea-N为主,NO... 详细信息

采用滴灌和浇灌2种灌溉方式,结合梯度施肥和测定土壤溶液中氮含量,研究渭北旱塬矮化红富士苹果园不同氮素形态在土壤中的迁移、富集和转化特性。结果表明:滴灌施肥显著降低氮素的迁移、富集和转化作用;在不同氮素形态中,以urea-N为主,NO-3-N次之,NH+4-N最小;当施肥量为0.32 kg·株-1时,2种灌溉方式对氮素迁移、富集和转化作用的影响差别不明显,施肥量达到1.2 kg·株-1时,浇灌施肥方式下氮素的迁移、富集和转化作用极显著高于滴灌,尤其在40～ 80 cm土层更加明显。综合比较,滴灌施肥明显降低了苹果园不同氮素形态的迁移、富集和转化作用,增加了土壤中氮素的含量,尤其是有效态氮的含量,全年施肥量在0.64～ 1.2 kg·株-1时能相对减少氮肥的损失。

关键词：苹果滴灌施肥氮运移土壤溶液

海南岛芒果园施肥现状调查及土壤养分状况分析

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热带作物学报 2018年第12期39卷 2336-2342页

作者：何翠翠冯焕德魏志远侯宪文陈业渊中国热带农业科学院热带作物品种资源研究所海南儋州571737 中国热带农业科学院环境与植物保护研究所海南海口571101

本文主要通过了解海南岛芒果园施肥现状及对应的土壤养分状况,综合分析施肥管理现状,为芒果种植科学施肥提供理论基础。研究结果表明,海南岛芒果主产区肥料投入平均水平为N 334.01 kg/hm^2、P_2O_5 177.10 hm^2、K_2O184.21 hm^2,其中N... 详细信息

本文主要通过了解海南岛芒果园施肥现状及对应的土壤养分状况,综合分析施肥管理现状,为芒果种植科学施肥提供理论基础。研究结果表明,海南岛芒果主产区肥料投入平均水平为N 334.01 kg/hm^2、P_2O_5 177.10 hm^2、K_2O184.21 hm^2,其中N∶P_2O_5∶K_2O为1∶0.53∶0.55,芒果化肥消耗系数为0.059 01 kg/kg,纯氮消耗系数为0.020 7 kg/kg,施用有机肥农户比例为76.92%,有机肥平均施用量低于333.33 kg/hm^2。海南岛芒果主产区土壤有机质含量偏低,范围为11.16～17.22 g/kg;碱解氮含量偏高,范围为278.86～859.10 mg/kg;速效磷含量差异较大,为21.74～81.73 mg/kg;速效钾含量在96.56～97.19 mg/kg。综上所述,海南岛芒果园氮磷钾肥料投入比例不科学,钾肥投入量偏低,建议增施钾肥;有机肥投入严重不足,建议提高施用有机肥农户比例,增大有机肥施用量。

关键词：海南岛芒果施肥现状土壤养分状况

1-MCP与内源乙烯相互作用对富士苹果成熟的影响

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西北农业学报 2011年第12期20卷 88-92页

作者：冯焕德张永茂徐小洲许英豪陈大鹏康三江甘肃省农业科学院农产品贮藏加工研究所兰州730070 庆阳市农业科学研究院甘肃庆阳745000 河南省宛西制药股份有限公司河南南阳474500

以红富士苹果为试材,经过6h的低压低氧(HH,10kPa,1.5kPaO2)处理后,进行1-MCP熏蒸,通过测定贮藏(室温下)过程中生理指标的变化,探讨1-MCP与内源乙烯的相互作用对苹果贮藏过程中成熟的影响。结果表明,经HH处理后,内源乙烯体积分数(IEC)显... 详细信息

以红富士苹果为试材,经过6h的低压低氧(HH,10kPa,1.5kPaO2)处理后,进行1-MCP熏蒸,通过测定贮藏(室温下)过程中生理指标的变化,探讨1-MCP与内源乙烯的相互作用对苹果贮藏过程中成熟的影响。结果表明,经HH处理后,内源乙烯体积分数(IEC)显著降低至对照水平的61.6%,其他各项指标与对照无显著差异;1-MCP和HH+1-MCP处理抑制果实硬度的下降,保持较高的可滴定酸含量,推迟呼吸和乙烯峰的出现,延缓果皮叶绿素的下降,诱导SOD、POD和CAT活性保持较高的水平,有效延缓苹果的后熟进程。研究表明苹果采后内源乙烯水平是影响1-MCP作用能力的重要因素。

关键词：富士苹果 1-甲基环丙烯(1-MCP) 内源乙烯果实成熟

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成年槟榔叶片及种植土壤养分的含量特征

贵州农业科学 2018年第5期46卷 107-109页

作者：冯焕德王华黄海杰王登峰中国热带农业科学院热带作物品种资源研究所海南儋州571737

为槟榔合理施肥提供依据,采用定点观测法研究海南屯昌槟榔主产区土壤和成年槟榔树叶片养分含量及其年度动态变化规律。结果表明:海南屯昌槟榔园土壤整体呈弱酸性,pH为5.50;土壤磷含量极低,仅为5.46mg/kg,槟榔叶片的氮含量最高,磷含量最... 详细信息

为槟榔合理施肥提供依据,采用定点观测法研究海南屯昌槟榔主产区土壤和成年槟榔树叶片养分含量及其年度动态变化规律。结果表明:海南屯昌槟榔园土壤整体呈弱酸性,pH为5.50;土壤磷含量极低,仅为5.46mg/kg,槟榔叶片的氮含量最高,磷含量最低,分别为20.24g/kg和0.31g/kg;其含量差异与其自身的养分需求特征有关。槟榔叶片养分含量在年度生长期存在差异,4—9月是槟榔植株需要养分最多和对养分丰缺最敏感的时期,也是施肥的重要时期。

关键词：槟榔土壤叶片养分含量动态变化海南