共查询到20条相似文献，搜索用时 31 毫秒
1.
陕北黄土高原丘陵沟壑区是山地苹果重要产区,为提升山地果园土壤养分和果实品质及产量,以“肥水蚓坑”措施为基础,通过田间试验探讨不施肥、单施化肥、有机无机肥配施(牛粪+化肥、菇渣+化肥、牛粪+菇渣+化肥)等不同施肥对山地果园土壤养分、叶片营养、苹果产量与品质的影响。结果表明：(1)不施肥处理的土壤有机质含量和速效养分含量均低于施肥处理,其中,单施化肥处理低于有机无机肥配施处理,牛粪+菇渣+化肥处理的效果优于其他施肥处理。(2)施肥处理的苹果叶片不同生育期的全氮、磷、钾含量均显著高于不施肥对照,有机无机肥配施处理优于单施化肥处理。(3)不施肥处理与施肥处理的苹果果实硬度和果形指数无显著差异,施肥处理均可显著提高苹果产量和果实可溶性固形物、可溶性糖及维生素C含量,牛粪+菇渣+化肥优于其他处理,单施化肥的果实可滴定酸含量显著高于不施肥和有机无机肥配施。单施化肥的果实糖酸比与不施肥无显著差异,却显著低于有机无机肥配施。综上,“肥水蚓坑”结合有机无机肥配施可以减少化肥的施用,提高土壤养分含量,确保苹果提质增产,牛粪+菇渣+化肥(牛粪∶菇渣=1∶1)是山地苹果提质增产的优质管理模式,值得在陕北黄土丘陵... 相似文献
2.
Use of composts as soil amendments to enhance crop growth requires a knowledge of rates and amounts of nutrients released. A greenhouse study was conducted using ryegrass (Lolium perenne L.) as a test plant to evaluate this release from composts. The experimental design consisted of four blocked replicates in a complete factorial with two types of compost (wastewater treatment plant biosolids and cow manure), four application rates (1, 2, 5 and 10 percent of weight of sand), and three fertilizer treatments (0, 100 mg N/kg mixture, and 100 mg P/kg mixture). Rye-grass top growth was harvested after 21 days. The regrowth was harvested three additional times. Roots were recovered after the fourth harvest. Total N uptake was significantly and positively affected by the total amount of N supplied by the compost or compost plus N fertilizer (r2 values ranged from 0.992 to 0.999). Initial N uptake depended on the mineral N concentration in the compost and was higher from biosolids than from cow manure compost. Biosolids compost contained 10 times more mineral N and this N was primarily taken up in the first two harvests. Cow manure compost, however, provided N gradually over the entire 84 day test. In addition to N, both composts also supplied P, K, and other major and minor nutrients essential for plant growth. 相似文献
3.
Fatemeh Ghilishli Seydeh Zohreh Mirdeilami Ezatolla Moradi 《Journal of plant nutrition》2016,39(10):1441-1448
One of the management operations in rangeland ecosystems for pastures restoration and improvement is fertilizer application. This study was designed to investigate the effect of fertilizer (50 kg/ha urea and ammonium phosphate fertilizers) on species diversity changes in a 100-ha experimental field of Salmechal Rangeland, Golestan Province. Plant species mean canopy cover was recorded using a 50-m2 sampling plot. Statistical analysis was performed using Excel 2007 and PAST software. Fertilizer application increased the number of species present in the region from 21 to 51 and the plant families from 11 to 23. The forbs had the highest proportion (54.91%) and bushes and shrubs had the lowest percentage in the region. Fertilizer application increased plant diversity, uniformity, and coverage of the grasses. There was a significant difference (p < 0.01) between the grass and forbs coverage before and after fertilizer treatments. The results showed that the biological and physiological growth periods of the annual and perennial plants were significantly different before and after fertilizer application (p < 0.01). Also, their proportion in rangeland plant species composition significantly increased after fertilizer application. 相似文献
4.
《Geoderma》2002,105(3-4):167-177
Tuber yield and nitrogen uptake in potatoes were recorded during 1996 and 1997 in Southern Bavaria. Recovery of applied fertilizer nitrogen was measured by using 15N (15NH415NO3). Nitrogen fertilizer was brought out either broadcast or in the ridge; 150 kg N ha−1 were applied either at planting or in split doses of 50 kg N ha−1 (at planting, emergence and at 20-cm plant height). Due to unfavorable conditions, tuber yield and fertilizer N recovery were lower in 1996 as compared with 1997. Fertilizer N recovery in plant biomass (tuber and foliage) ranged from 35.9% to 68.5% at growth stage EC 79; the main fraction was allocated to tubers. Placement of fertilizer N in the ridge had a positive effect on N recovery, when the total N amount was applied at planting. In broadcast application, fertilizer N recovery was higher when the fertilizer doses were split, as compared with a single broadcast application at planting. When fertilizer N was applied in split doses, the effect of N placement became negligibly small. Fertilizer N recovery in soil ranged from 19.5% to 24.6%, and total recovery ranged from 60.1% to 88.0%. Rainfall between planting and plant emergence, and conditions restricting plant development in early developmental stages were related with unaccounted fertilizer N losses. Therefore, the positive effects of split N applications or fertilizer placement are most likely to occur under unfavorable growing conditions. 相似文献
5.
K. C. Uzoma M. Inoue H. Andry H. Fujimaki A. Zahoor E. Nishihara 《Soil Use and Management》2011,27(2):205-212
In this study, we performed a greenhouse experiment to investigate the effect of cow manure biochar on maize yield, nutrient uptake and physico‐chemical properties of a dryland sandy soil. Biochar was derived from dry cow manure pyrolysed at 500 °C. Cow manure biochar was mixed with a sandy soil at the rate equivalent to 0, 10, 15 and 20 t biochar per hectare. Maize was used as a test crop. Results of the study indicated that cow manure biochar contains some important plant nutrients which significantly affected the maize crop growth. Maize yield and nutrient uptake were significantly improved with increasing the biochar mixing rate. Application of biochar at 15 and 20 t/ha mixing rates significantly increased maize grain yield by 150 and 98% as compared with the control, respectively. Maize net water use efficiency (WUE) increased by 6, 139 and 91% as compared with the control, with the 10, 15 and 20 t/ha mixing rate, respectively. Nutrient uptake by maize grain was significantly increased with higher biochar applications. Application of cow manure biochar improved the field‐saturated hydraulic conductivity of the sandy soil, as a result net WUE also increased. Results of the soil analysis after the harvesting indicated significant increase in the pH, total C, total N, Oslen‐P, exchangeable cations and cation exchange capacity. The results of this study indicated that application of cow manure biochar to sandy soil is not only beneficial for crop growth but it also significantly improved the physico‐chemical properties of the coarse soil. 相似文献
6.
长期稻草还田对紫色水稻土肥力和生产力的影响 总被引：39，自引：5，他引：39
通过8年淹水条件下一季中稻的田间定位试验,研究了长期稻草还田以及稻草与不同化肥配合施用对紫色水稻土生产力和土壤肥力的影响。结果表明,稻草与N、P、K化肥配合施用能维持或提高紫色水稻土的生产力和土壤肥力;水稻获得了持续高产,土壤有机质和全氮含量提高,土壤磷的有效性增加,速效钾与试验前基本平衡。纯化肥处理尤其是N、NP、NK处理水稻产量、土壤氮和钾含量逐年降低,不能维持系统生产力和土壤肥力。稻草还田对翌年水稻具有显著的增产作用,8年平均稻草还田处理比对照增产39.5%,稻草的增产作用还随着稻草还田时间的延长而逐年升高。稻草还田携入的钾与化学钾肥具有相同的营养功效,稻草可替代部分化学钾肥。 相似文献
7.
《Communications in Soil Science and Plant Analysis》2012,43(15-16):2771-2783
Abstract With increasing manure production per unit cropland available for its disposal, greater recovery and recycling of manure nitrogen (N) through crop uptake is needed on dairy farms to minimize environmental problems. This study was conducted in 1990 and 1991 on a sandy loam soil with the objective of quantifyin forage yield and N recovery by orchardgrass (Dactylis glomerata L.) in response to dairy manure applied in spring with or without fertilizer N. Manure N, either as liquid or as solid with bedding, was surface applied annually to supply 150 kg total N/ha/yr with four rates of fertilizer N (0, 75, 150, and 300 kg N/ha in 1990 and 0, 150, 300, and 600 kg N/ha in 1991) factorially superimposed over the manure treatments. Averaged over years, orchardgrass recovered 40% of the liquid manure N and 26% of the solid manure N applied each year. On an annual basis, the crop recovered 430 kg soil N/ha/yr from plots receiving liquid manure in combination with 600 kg fertilizer N/ha. This study demonstrates that intensively managed orchardgrass has the potential to absorb large quantities of manure N. 相似文献
8.
The influence of different fertilization practices [i.e., nitrogen (N), phosphorus (P), and potassium (K) fertilizers, crop residue, and manure] on dry matter production of white yam (Dioscorea rotundata) “kokoro” a late variety of yam, tuber biomass and dry matter distribution to the plant parts was determined in upper Oueme basin (Republic of Benin) in the years 2001, 2002 and 2003. The experimental design was a randomized complete block with four replications. Altogether there were eight plots divided into two groups consisting of four plots each, one was treated with manure (at the rate of 10 ton ha?1), second plot with mineral fertilizer (N30:P30:K60), third plot with combination of manure and mineral fertilizer, whereas the fourth plot was left as control (no application of fertilizer). In year 2002 and 2003 the same combinations were made taking crop residues (at the rate of10 ton ha?1) from external sources as a source of organic matter at the place of manure. Manure application did not have a significant effect on yam total biomass production nor on tuber yield when applied on fields after fallow. Whereas crop residue application had a positive significant effect on yam tuber and total biomass production when applied after cotton and maize and with adequate rainfall amount and distribution. Regarding partitioning pattern in yam crop, no effect of different practices of fertilization has been noticed. The crop behaves identically (i.e, partitioning rate) in both fertilized and unfertilized management practice. 相似文献
9.
Ali Hosseinirad Mohammad Reza Chaichi Amir Sadeghpour 《Journal of plant nutrition》2013,36(3):491-502
To study the effects of phosphorus (P) fertilizer (cow manure, phosphorus solublizing bacteria) and sowing density on seed production of alfalfa, an experiment was laid out in a three-replicated split-split plot design with four phosphorus fertilizer rates (0, 30, 60 and 90 kg ha?1) in main plots, three phosphorus-solublizing bacteria (9, 41strains, and no bacteria) in sub-plots and three sowing densities (2, 6 and 10 kg ha?1) in sub-sub plots. The highest seed yield resulted from 60 and 90 kg P ha?1. Application of bacteria strain 41 was more efficient than bacteria strain 9 in seed yield and 1000-seed weight. Seed yield at 6 seed kg ha?1 treatment was higher than 10 kg ha?1, although there was no significant difference between them. Based on the results of this experiment the triple application of P60, B41 and SD6 could be recommended as the best treatment for seed production of alfalfa (Cultivar ‘Nikshahri’) under the semi-saline condition. 相似文献
10.
Mohammad Hossein Ansari Davood Hashemabadi Behzad Kaviani 《Communications in Soil Science and Plant Analysis》2017,48(18):2103-2118
The effect of cattle manure and sulfur fertilizer on seed yield and oil composition of pumpkin (Cucurbita pepo var. Styriaca) under inoculated with Thiobacillus thiooxidans was investigated in a factorial study based on a randomized complete block design. Experimental factors consisted of cattle manure (M) (M0: 0, M1: 10; and M2: 20 t ha?1), sulfur (S) (S0: 0, S1: 250; and S2: 500 kg ha?1) and T. thiooxidans (B): inoculated (B1) and non-inoculated (B0). Results demonstrated that the application of T. thiooxidans, cattle manure, and S fertilizer decreased the soil pH. The largest number of seed per fruit (367), highest fruit yield (70.57 t ha?1), seed iron (Fe) content (16.26 mg 100 g?1), and seed yield (111 kg ha?1) was obtained when 20 t ha?1 manure was applied in combination with 500 kg ha?1 S inoculated with T. thiooxidans. In this condition, the content of S, Fe, phosphorus (P), and nitrogen (N) in plant shoots was increased by 44.8%, 22.58%, 33.89%, and 10.38%, respectively, compared to the control. Moreover, the highest content of seed protein was observed in 10 t ha?1 manure and 500 kg ha?1 S fertilizer inoculated with T. thiooxidans. When 250 kg ha?1 S fertilizer was applied, 20 t ha?1 manure decreased seed P content sharply. At the rate of 500 kg ha?1 S fertilizer, the highest content of seed P was obtained from 20 t ha?1 manure. Totally, 20 t ha?1 cattle manure, along with 500 kg ha?1 S fertilizer as well as T. thiooxidans inoculation, improved oil and seed yield of medicinal pumpkin. 相似文献
11.
氮、磷、钾用量与种植密度对油菜产量和品质的影响 总被引：16，自引：2，他引：14
以华油杂9号为试验材料,固定氮（N）:磷（P2O5）:钾（K2O）比例为1:0.55:0.8,设置施纯氮量135、225、315 kg /hm2,以及种植密度15、45、75万株/hm2不同处理,研究施肥量与密度对油菜产量及品质的影响。结果表明,籽粒产量随施肥量、密度的增大而增加,增加施肥量的增产幅度大于增加密度;施肥水平较低时,提高密度的增产作用更为显著。改变施肥量与密度对经济性状、产量构成因素均可产生显著影响,但改变密度对单株有效分枝数及角果数的影响更大。不同肥力下密度每增加30万株/hm2,单株有效分枝数降低1.7～3.8个。主茎籽粒含油量高于分枝,蛋白质及硫苷含量低于分枝。随施肥量增加含油量下降,硫苷、蛋白质含量上升。随密度增加含油量上升,蛋白质含量下降,主茎与分枝的硫苷含量上升,但整株硫苷含量下降。因此,若以减少施肥、节本增效为前提,选择每公顷施纯氮135～225 kg、P2O575～124 kg、K2O 108～180kg,并且在45～75万株/hm2范围内适当提高密度,有利于获得3000kg/hm2以上的籽粒产量。 相似文献
12.
13.
黄土高原旱地不同施肥对土壤肥力与产量的影响 总被引：11，自引：0，他引：11
Long-term fertility experiments have become an important tool for investigating the sustainability of cropping systems. Therefore, a long-term (18-year) fertilization experiment was conducted in Changwu County, Shaanxi Province, China, to ascertain the effect of the long-term application of chemical fertilizers and manure on wheat yield and soil fertility in the Loess Plateau, so as to provide a scientific basis for sustainable land management. The experiment consisted of nine fertilizer treatments with three replicates arranged in a completely randomized design: 1) CK (no fertilizer); 2) N (N 120 kg ha-1); 3) P (P 26.2 kg ha-1); 4) NP (N 120, P 26.2 kg ha-1-2); 5) M (manure 75 t ha-1); 6) NM (N 120 kg ha-1, manure 75 t ha-1); 7) PM (P 26.2 kg ha-1, manure 75 t ha-1); 8) NPM (N 120 , P 26.2 kg ha-1, manure 75 t ha-1); and 9) fallow (no fertilizer, no crop). N fertilizer was applied in the form of urea and P was applied as calcium super phosphate. The results showed that precipitation had a large effect on the response of wheat yield to fertilization. Manure (M), NP, PM, NM, and NPM treatments significantly increased (P < 0.05) average yield. In the NP, PM, NM and NPM treatments, the percentage increases in yield due to fertilization were highest in normal years, and lowest in the drought years. Long-term P application enhanced soil available P markedly, and manure applications contributed more to soil fertility than chemical fertilizers alone. Chemical fertilizers applied together with manure distinctly improved soil fertility. The results also showed that the soil nutrient concentration changed mainly in the 0--60 cm layers and fertilization and planting only slightly affected soil nutrients below the 100 cm layers. 相似文献
14.
畜禽粪便作为有机肥还田可以维持和提高土壤有机质、改良土壤,有利于农业可持续发展。不同类型粪肥还田后对土壤生物学性状的影响不同,为探究这一问题,在内蒙古乌兰察布市设置田间试验,包括化肥(F)、羊粪(GM)、猪粪(PM)、牛粪(CM)4个处理,研究其对土壤养分、酶活性及微生物群落的影响。结果表明,施用粪肥较化肥具有增加土壤有机质、全氮、有效磷、铵态氮等养分含量的趋势。不同粪肥较化肥处理的土壤脲酶、蔗糖酶、碱性磷酸酶和过氧化氢酶活性最高增幅分别为32.4%、150.4%、26.8%和30.1%。牛粪处理的土壤微生物生物量碳氮显著提高,分别较化肥增加33.2%和33.4%。不同处理在细菌门水平上的优势种群较一致,放线菌门(Actinobacteria)、变形菌门(Proteobacteria)、酸杆菌门(Acidobacteria)、绿弯菌门(Chloroflexi)、厚壁菌门(Firmicutes)是优势种群。本试验条件下,牛粪处理更能提高土壤微生物生物量碳氮,短期内施用不同粪肥对于提高土壤微生物群落多样性差异不显著,土壤pH、有效磷、铵态氮是影响土壤微生物群落结构的主要环境因子。 相似文献
15.
《Communications in Soil Science and Plant Analysis》2012,43(15):1797-1815
Two trials were conducted to determine the effect of swine manure application on wheat growth and nutrient uptake. Manure was added to soil on a nitrogen (N) basis at 325 kg plant-available nitrogen (PAN) ha?1 (experiment 1) and on a phosphorus (P) basis at 50 kg P ha?1, while maintaining a rate of 325 kg PAN ha?1 through ammonium sulfate addition (experiment 2). Manure treatments increased overall wheat growth by 29% (P < 0.005) compared to the negative control (NC) and increased plant tissue N mass 48% (P < 0.001) and P mass 61% (P < 0.002) (experiment 1). Fertilizer control tended to increase (P < 0.10) wheat growth and increased total vegetative tissue N mass by 23% (P < 0.006) and potassium mass by 20% (P < 0.002) compared to manure treatments. Manure treatments increased wheat growth by 23% (P < 0.03) compared to the NC at the first harvest (experiment 2). 相似文献
16.
Field experiments were conducted on rainfed wheat and mungbean for two consecutive seasons on a Udic Ustocrept to evaluate the effect of tillage techniques, fertilization, and weeding on crop yields and nutrient uptake. Tillage techniques were conventional, zero, and deep tillage. Fertilizer treatments consisted of a control, nitrogen (N) and phosphorus (P) fertilizer, and farmyard manure plus fertilizer. Grain yield of wheat (Triticum aestivum L.) was 2,404 kg/ha under conventional tillage, 2,008 kg/ha under zero tillage, and 2,839 kg/ha under deep tillage. Total dry matter of wheat was 7,612 kg/ha under deep tillage, 6,671 kg/ha under conventional tillage, and 6,016 kg/ha under zero tillage. Fertilizer application increased wheat grain yield by 112% and total dry matter by 150% over the control. Weed biomass of wheat was 57% greater under zero tillage than under conventional tillage. Mungbean (Vigna radiata L.) grain yield was 371 kg/ha under conventional tillage, 248 kg/ha under zero tillage, and 367 kg/ha under deep tillage. Mungbean total dry matter yield was 2,018 kg/ha under deep tillage, 1,814 kg/ha under conventional, and 1,143 kg/ha under zero tillage. Dry weed biomass in mungbean was 38% greater under zero tillage and 6% lesser under deep tillage than that of conventional tillage. Nitrogen and P uptake by weeds was greater under zero tillage compared with conventional and deep tillage. 相似文献
17.
Michael Olajire Dare Olajire Fagbola Robert C. Abaidoo Robert Asiedu 《Journal of plant nutrition》2014,37(5):658-673
Yield decline in yam may not only be due to soil nutrient depletion but also to the activity of soil microflora. Arbuscular mycorrhizal (AM) symbiosis helps in plant nutrition but may be affected by the application of fertilizer. The effects of nitrogen (N), phosphorus (P), and potassium (K) fertilizer rates on the AM colonization, leaf nutrient concentrations, and tuber yields of eleven genotypes of Dioscorea rotundata were investigated at Ibadan, Nigeria. The soil was ferric luvisol. Eleven genotypes were selected from the previously conducted screening of 75 genotypes of D. rotundata for fertilizer response. Four application rates: 0, 200, 400, and 600 kg ha?1 of NPK 15-15-15 were applied in a split plot design with four replications. Fertilizer rate was the main plot and variety was the sub plot. Percentage AM colonization was significantly reduced at 600 kg ha?1 but not at lower rates when compared to zero rate and it was negatively correlated with leaf N, P, and zinc (Zn) concentrations. Leaf N concentrations were significantly increased at 200 kg ha?1 in five genotypes and at 600 kg ha?1 in two genotypes compared to zero application. Leaf P and K concentrations were decreased with the application of fertilizer in most of the genotypes. The NPK fertilizer of 15-15-15 at the rate of 200–400 kg ha?1 gave yield response in eight genotypes of D. rotundata, with minimal or no effect on their AM colonization when compared to zero application. Long term study on the effect of fertilizer application on AM symbiosis in yam is recommended. 相似文献
18.
不同供氮水平对夏玉米养分累积、转运及产量的影响 总被引：83，自引：20，他引：83
通过田间小区试验,研究了高肥力土壤上施N.125、250、375.kg/hm2对夏玉米生物量、子粒产量、N、P、K养分累积动态、及氮肥表观利用率、养分转运的影响。结果表明,不同施氮量只影响夏玉米不同生育时期养分的阶段累积量,而对累积趋势基本无影响。植株生物量及N、P、K养分累积量随生育期的延长而增加,且它们的累积趋势相似,都呈S型曲线。各处理的子粒产量在7000～7700.kg/hm2之间,只有N250处理增产达显著水平;氮肥表观利用率在10%～18%之间,随施氮量的增加略有降低。施氮可提高子粒中的氮素累积量,而对磷的累积量影响不大。随着施氮量的增加,氮素的转运量、转运效率及其在子粒中的比例都降低,磷的转运与氮表现出类似的趋势。综合考虑产量、氮肥利用率、养分转运及环境污染等因素,该地区夏玉米的推荐施氮量应控制在125.kg/hm2以内。 相似文献
19.
施肥对灌漠土作物产量、土壤肥力与重金属含量的影响 总被引：1，自引：0，他引：1
有机物还田是提升土壤肥力的主要措施,但也存在造成土壤金属污染的潜在风险。为查明不同有机物还田对土壤质量及作物产量的影响,本文通过长期定位试验,研究了无肥对照、常规施化肥(氮磷配施)以及70%常规化肥与牛粪、沼渣、污泥、鸡粪、菌渣和猪粪配施对土壤理化性状、有机碳和氮的固存率、氮磷钾活化系数、作物产量及重金属含量的影响。结果表明:牛粪、沼渣、污泥、菌渣、鸡粪和猪粪与70%化肥配施虽作物产量与常规施化肥相似,但6种有机物处理土壤有机质、全氮和碱解氮含量都较常规施化肥处理显著增加,污泥、鸡粪和猪粪处理土壤全磷与速效磷含量较常规施化肥处理显著增加,而且牛粪、沼渣、鸡粪和猪粪处理的速效钾、土壤磷活化系数和土壤钾活化系数较常规施化肥处理也显著提升。牛粪、沼渣、污泥、菌渣、鸡粪和猪粪处理土壤有机碳固存率为36.42%～71.61%,较常规施化肥处理都显著提高;而其氮固存率为6.47%～49.44%,仅有菌渣处理与常规施化肥处理差异不显著,而其他处理较常规施化肥处理显著增加。长期施鸡粪和菌渣处理的土壤铜含量较常规施化肥处理显著增加,增加量分别为4.17mg·kg~(-1)和14.2mg·kg~(-1);而污泥、鸡粪和菌渣处理的土壤锌含量较常规施化肥处理显著增加,增加量分别为13.53 mg·kg~(-1)、22.60 mg·kg~(-1)和49.73mg·kg~(-1)。综上,等有机质(4 500kg×hm~(-2))的牛粪、沼渣、污泥、菌渣、鸡粪和猪粪可替代30%氮磷肥,作物产量不受影响;不同有机物培肥土壤效果为污泥、鸡粪和猪粪优于牛粪和沼渣,而沼渣的培肥效果略差。为保证土壤环境质量稳定不恶化,种植小麦时有机物铜和锌的年携入量应分别低于53.01g×hm~(-2)和221.30 g×hm~(-2),而种植玉米时应分别低于153.40 g×hm~(-2)和347.04 g×hm~(-2)。 相似文献
20.
Viviane Dal-Souto Frescura Aline Augusti Boligon Felipe Manzoni Barbosa Jéssica Maronez De Souza Maíne Alessandra Lerner Haywood Dail Laughinghouse IV 《Journal of plant nutrition》2018,41(10):1293-1302
Rosmarinus officinalis L. (rosemary), is a medicinal and aromatic species used in the cosmetics and food processing industries. The present study aimed to evaluate the biomass production, content, yield and chemical composition of the essential oil of rosemary in cultivation out of soil with different concentrations of nutrient solution in both harvests. The cultivation of rosemary was conducted in a protected system off the ground, with concentrations of nutrient solutions of 1, 2, 3, 4 and 5 dS.m?1 for fertigation with collections of leaves 100 and 160 days after planting. Nutrient solution concentration influences phytomass production and the content and yield of essential oil of rosemary, though not its chemical composition. The collection time does not interfere in the content of essential oil; however, does interfere in the chemical composition; the production of phytomass and the yield of oil per plant are higher in collections at 160 days after planting. 相似文献