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浅析日光温室蔬菜栽培的土壤与施肥技术 被引量:1
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作者 张忠 《新农民》 2020年第8期52-52,共1页
蔬菜是人们日常生活中经常食用的食物大类,随着健康饮食观念不断深入人心,人们对蔬菜的消费量不断提升,对蔬菜的品质要求也越来越高,这也对蔬菜种植产业提出了更高的要求。采用温室大棚种植蔬菜作物,可以为蔬菜营造更佳的生长环境,进而... 蔬菜是人们日常生活中经常食用的食物大类,随着健康饮食观念不断深入人心,人们对蔬菜的消费量不断提升,对蔬菜的品质要求也越来越高,这也对蔬菜种植产业提出了更高的要求。采用温室大棚种植蔬菜作物,可以为蔬菜营造更佳的生长环境,进而达到提升产量的目的,合理的水肥管理,可以更好的满足蔬菜成长的养分需求,也能减小对土壤环境的破坏。本文就是具体分析一下日光温室蔬菜栽培中的土壤与施肥技术,以供参考。 展开更多
关键词 日光温室 蔬菜栽培 土壤施肥技术
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有机农业栽培的施肥与土壤培肥技术探讨
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作者 伍志林 《农村科学实验》 2022年第13期64-66,共3页
有机农业栽培技术属于适用性较强的农业技术,满足不同农作物本身的营养需求,保证农作物的健康成长。在有机栽培技术使用过程中施肥和土壤培肥技术为重要的组成部分,能有效满足有机农业的长远性目标,创造出更高的整体效益,使有机农业栽... 有机农业栽培技术属于适用性较强的农业技术,满足不同农作物本身的营养需求,保证农作物的健康成长。在有机栽培技术使用过程中施肥和土壤培肥技术为重要的组成部分,能有效满足有机农业的长远性目标,创造出更高的整体效益,使有机农业栽培技术能够有良好的发展空间。因此在实际工作中需要加强对有机农业栽培中施肥与土壤培肥技术的深入性分析以及研究,为有机农业的发展提供坚实的保障。 展开更多
关键词 有机农业栽培 施肥土壤培肥技术 应用
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芒果林土壤铵态氮和速效钾的测定分析研究 被引量:1
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作者 熊剑 《广州化工》 CAS 2021年第21期88-90,共3页
土壤营养元素铵态氮和速效钾是土壤大量营养元素的重要组成部分,其含量值的测定可以直接反映出土壤肥力水平,对指导土壤施肥具有十分重要的现实意义和价值。土壤元素测定值的大小可以反映出土壤元素含量的多少和供肥状况,是衡量施肥效... 土壤营养元素铵态氮和速效钾是土壤大量营养元素的重要组成部分,其含量值的测定可以直接反映出土壤肥力水平,对指导土壤施肥具有十分重要的现实意义和价值。土壤元素测定值的大小可以反映出土壤元素含量的多少和供肥状况,是衡量施肥效果和确定是否需要施肥的重要依据。由于本次实验对象为芒果林,而攀枝花又是大量种植芒果的地区,因此,上诉因素对芒果的影响是很直接的。结果表明:整个芒果林的土壤中铵态氮的含量非常缺乏。 展开更多
关键词 芒果林 土壤肥力 铵态氮 速效钾 土壤施肥技术
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Studies on nutrient uptake of rice and characteristics of soil microorganisms in a long-term fertilization experiments for irrigated rice 被引量:7
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作者 张奇春 王光火 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE EI CAS CSCD 2005年第2期147-154,共8页
The ecosystem characteristics of soil microorganism and the nutrient uptake of irrigated rice were investigated in a split-block experiment with different fertilization treatments, including control (no fertilizer app... The ecosystem characteristics of soil microorganism and the nutrient uptake of irrigated rice were investigated in a split-block experiment with different fertilization treatments, including control (no fertilizer application), PK, NK, NP, NPK fertilization, in the main block, and conventional rice and hybrid rice comparison, in the sub block. Average data of five treatments in five years indicated that the indigenous N supply (INS) capacity ranged from 32.72 to 93.21 kg/ha; that indigenous P supply (IPS)capacity ranged from 7.42 to 32.25 kg/ha; and that indigenous K supply (IKS) capacity ranged from 16.24 to 140.51 kg/ha, which showed that soil available nutrient pool depletion might occur very fast and that P, K deficiency has become a constraint to increasing yields of consecutive crops grown without fertilizer application. It was found that soil nutrient deficiency and unbalanced fertilization to rice crop had negative effect on the diversity of the microbial community and total microbial biomass in the soil.The long-term fertilizer experiment (LTFE) also showed that balanced application of N, P and K promoted microbial biomass growth and improvement of community composition. Unbalanced fertilization reduced microbial N and increased C/N ratio of the microbial biomass. Compared with inbred rice, hybrid rice behavior is characterized by physiological advantage in nutrient uptake and lower internal K use efficiency. 展开更多
关键词 RICE Nutrient uptake FERTILIZATION Soil microorganism DIVERSITY
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Using an Anion Exchange Membrane to Predict Soil Available N and S Supplies and the Impact of N and S Fertilization on Canola and Wheat Growth 被引量:4
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作者 J.J.SCHOENAU 《Pedosphere》 SCIE CAS CSCD 2007年第1期77-83,共7页
A growth chamber study was conducted to determine the relationships between the supply of soil available nitrogen (N) and sulfur (S) and canola (Brassica napus) and wheat (Triticum aestivum L. 'Biggar') N and ... A growth chamber study was conducted to determine the relationships between the supply of soil available nitrogen (N) and sulfur (S) and canola (Brassica napus) and wheat (Triticum aestivum L. 'Biggar') N and S uptake and yield in three Western Canadian soils. The suitability of one-hour burial with an anion exchange membrane (AEM) was assessed for its utility as a quick test of the available N:S balance in the soil. Canola and wheat were grown on a Luvisolic soil low in available S and on Brown and Black Chernozemic soils low in both available N and S, with different rates and combinations of N and S fertilizers applied. AEM burial was used to assess soil available nitrate and sulfate supply rates after fertilization. Dry matter yield and N and S concentrations in plant tissues were determined after 6 weeks of growth. The soil available N:S ratio determined by AEM burial closely reflected the relative supplies of available N and S as revealed in the N:S ratios of plant tissue dry matter. The highest yields were achieved where the available N:S ratio in soil and plant tissue ranged from 5 to 13. Thus, a one-hour burial of an AEM probe in the field may be a useful tool to quickly test if a balanced N and S supply is present in the soil for optimum crop yield. 展开更多
关键词 anion exchange membrane CANOLA N S WHEAT
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