DRIS Use on Apple Orchard Nutritional Evaluation in Response to Potassium Fertilization     

《Communications in Soil Science and Plant Analysis》2012,43(17-18):2557-2566

Abstract

The aim of this work was to use the diagnosis and recommendation integrated system (DRIS) method to evaluate the nutritional status of an apple orchard, cv. Gala/MM106, at Vacaria, State of Rio Grande do Sul, Brazil. Treatments consisted of four levels of annual maintenance potassium fertilization. Data on fruit production and fruit pellicle color were restored from 1995 to 2000, as well as the data on leaf macro and micro-nutrient concentrations. The DRIS indices and nutritional balance index (NBI) for each nutrient were determined using three methods: Beaufils, Jones, and Elwali and Gascho. The results showed that (i) the NBI, calculated from the generated norms, were negatively correlated negative correlated with productivity and fruit coloration, and (ii) the DRIS method, described by Elwali and Gascho and using the F value, was the most suitable for apple tree orchards, because the NBI values obtained with this method best indicated the nutritional status of the plants and provided a more accurate nutritional diagnosis.  相似文献   

NUTRIENT REQUIREMENTS OF CHAMAEROPS HUMILIS L. AND WASHINGTONIA ROBUSTA H. WENDL PALM TREES AND THEIR LONG-TERM NUTRITIONAL RESPONSES TO SALINITY     

María Dolores Simón  Manuel Nieves-Cordones  María Jesús Sánchez-Blanco  Trinitario Ferrández  Manuel Nieves 《Journal of plant nutrition》2013,36(9):1466-1478

The ornamental value of plants used in semiarid areas can be improved by knowledge of their required nutrients and of their nutritional responses under saline conditions. We present a long-term study concerning the nutritional status in Chamaerops humilis and Washingtonia robusta. Two-year-old plants were grown for two years outdoors in pots using water with electrical conductivity values of 2 (control) or 8 dS m^?1 (saline conditions). Nutrient specific absorption rates and leaf nutrient transport rates were estimated by fitting a Richards function regression. We suggest fertilizing C. humilis and W. robusta plants with nitrogen (N): phosphorus pentoxide (P₂O₅): dipotassium oxide (K₂O) ratios of 4:1:5 and 5:1:3, respectively. Diagnosis and Recommendation Integrated System (DRIS) and Plant Analysis with Standardized Scores (PASS) norms were also evaluated. PASS norms provided better nutritional diagnosis than DRIS norms. In saline conditions, PASS-INI (Independent nutrient index) pointed to a deficiency (C. humilis and of nitrogen in W. robusta.  相似文献   

NORMS FOR MULTIVARIATE DIAGNOSIS OF NUTRIENT IMBALANCE IN THE EAST AFRICAN HIGHLAND BANANAS (MUSA SPP. AAA)     

Lydia Wairegi  Piet van Asten 《Journal of plant nutrition》2013,36(10):1453-1472

Despite low yields and soil fertility problems, fertilizer use in the East African Highland banana (AAA-EA) production is absent. High fertilizer costs increase the need for site-specific fertilizer recommendations that address deficiencies. This study aimed to derive and compare norms for AAA-EA bananas, using Compositional Nutrient Diagnosis (CND), Diagnosis and Recommendation Integrated System (DRIS), and a DRIS that includes a filling value (DRIS-R_d), and study nutrient interactions. Data on foliar nitrogen, phosphorus, potassium, calcium, and magnesium concentrations, and plant performance were obtained from 300 plots in Uganda. CND indices were closely related to DRIS and DRIS-Rd indices (R² > 0.965). Four nutrient interactions were common in both low and high bunch weight subpopulations. Although the three approaches can be used to determine nutrient imbalances in AAA-EA bananas, we recommend CND for ease of use. Diagnosis of nutrient deficiencies should be based on methods that identify plant nutritional imbalances.  相似文献   

防火树种木荷苗期营养DRIS诊断研究     

徐少辉 《青海农林科技》2013,(3):27-30

采用回归最优饱和设计法对1年生木荷进行了施肥试验,运用DRIS诊断法对其叶片营养元素进行了研究。结果表明,以6～11月份木荷叶片N、P、K元素浓度测定值为依据,成功制定了DRIS指数法的营养诊断标准,经检验取得了较高的诊断正确率。木荷叶片N、P、K三元素浓度最佳比值范围为N/P=10.21±1.30,K/P=2.11±0.08,N/K=5.29±0.64;实验结果表明N、K肥对木荷苗影响较P肥更大。运用DRIS法诊断得到的木荷叶片养分浓度最佳比值范围将为木荷的合理施肥,提高苗木生长量提供科学依据。  相似文献   

综合诊断施肥法在茶树上的应用研究   总被引：2，自引：0，他引：2  

王银华  谭和平  吴全  张佑栋 《西南大学学报(自然科学版)》1993,(1)

研究结果表明,综合诊断施肥(DRIS)法具有较高的确诊率,是投产茶树较为理想的营养诊断方法。用该法对四川省70％的低产茶园进行分区诊断表明,普遍缺乏的仍是氮素肥。  相似文献   

DRIS evaluation of teak (Tectona grandis L.f.) mineral nutrition and effects of nutrition and site quality on teak growth in West Africa     

Pay Drechsel  Wolfgang Zech 《Forest Ecology and Management》1994,70(1-3):121-133

The objective of the investigation was to study the site variables controlling teak yield (Tectona grandis Linn.fil.) and to establish guidelines for the selection of high productivity sites in Benin, Côte d'Ivoire, Liberia, Nigeria and Togo. Depending on stand age, soil and region, between 70 and 90% of the variation in tree growth (site index, SI) could be explained by the supply of nitrogen, the root-available soil depth and precipitation. Diagnostic foliar analysis for a broad range of elements was carried out in all plantations with the exception of Nigeria. This showed that in 20% of the stands, various deficiency symptoms occur, and in an additional 40%, hidden demand of at least one nutrient is apparent. According to the Diagnosis and Recommendation Integrated System (DRIS), the most deficient nutrients besides N are Ca and P, while in 45% of all stands there is a relative Al excess. Recommendations for the evaluation and classification of site quality and the number of trees sampled for foliar analysis are given.  相似文献   

广东主要蓝莓品种叶片营养与土壤养分关系分析     

卓翊深  陈猛  曹凯  杨俊泉  陈杰忠  姚青 《广东农业科学》2022,49(3):49-56

[目的]蓝莓(Vaccinium spp.)是无根毛植物,根系吸收养分能力弱.华南地区是蓝莓栽培的新区,调查研究广东土壤条件是否适合蓝莓生长发育、树体养分是否平衡.[方法]以广东省河源市蓝莓园的4个品种为研究对象,在叶片和土壤分析的基础上,运用综合营养诊断法(DRIS)研究蓝莓树体养分平衡和盈亏状况,测定菌根侵染率,分...  相似文献   

Sugarcane Response to DRIS-Based Fertilizer Supplements in Florida   总被引：1，自引：0，他引：1  

J. M. McCray  S. Ji  G. Powell  G. Montes  & R. Perdomo 《Journal of Agronomy and Crop Science》2010,196(1):66-75

Soil testing is the primary basis for fertilizer recommendations in Florida sugarcane ( Saccharum spp.), but it has the limitations of generally being performed only before the plant cane crop and not providing information for nitrogen or micronutrient availability. Leaf analysis is a useful diagnostic tool that can complement soil testing and may allow more cost-effective fertilizer applications for each crop. The Diagnosis and Recommendation Integrated System (DRIS) was used to determine leaf nutrient status in a study evaluating the effectiveness of a summer fertilizer supplement. There were 19, 24 and 26 paired commercial field comparisons in 2004/05, 2005/06 and 2006/07 respectively. Each field of each test pair received normally recommended fertilizer applications based on pre-plant soil tests, with one field of each pair receiving a June/July fertilizer supplement based on DRIS indices of leaf samples collected in April/May. There was no response in tonnes of sugarcane ha⁻¹ or sugar tonne cane⁻¹ to the fertilizer supplements for organic or mineral soils or for plant or first ratoon crops. A more cost-effective use of leaf analysis appears to be with the adjustment of the next amendment or fertilizer application, generally for next year's crop or at the next sugarcane planting, rather than adding an additional fertilizer supplement to the current crop.  相似文献   

诊断施肥法在城市园林阔叶树种上的应用现状     

迟海涛  李常猛  金宁  张博 《黑龙江农业科学》2010,(1):121-123

针对城市中的园林阔叶树种所面临的营养衰退问题,通过实例介绍了3种植物诊断施肥方法在城市园林阔叶树种上的应用,阐述了3种诊断方法的差异和特点,并提出了需要进一步解决的问题和展望,旨在为城市园林阔叶树种生产实践中关键营养时期的平衡施肥起到理论指导意义。  相似文献   

四川巨桉人工林大中量营养元素DRIS诊断   总被引：2，自引：0，他引：2  

冯茂松  张健  钟宇 《四川农业大学学报》2009,27(1)

为有效管理四川巨桉人工林养分,在四川巨桉人工林分布区设立了60个标准地,采用DRIS法对巨桉人工林叶片大中量养分进行诊断,筛选出P/N、P/K、P/Ca、K/N、Ca/N、Mg/N、Mg/P、Mg/K、S/N、S/Mg等10个叶片养分浓度比值诊断指标,并分别采用高产组叶片养分浓度等级、DRIS诊断指数、DRIS诊断指数等级建立叶片养分诊断标准,诊断结果表明,四川巨桉人工林具有N、K缺乏,Ca、Mg相对过量,N、Ca、S养分供应地区变异较大的特点,针对不同立地条件和现有施肥习惯,应以N、K肥为主,适量施用P肥,降低Ca、Mg肥用量,控制S素的流失或富集。  相似文献