氨基酸螯合液肥对野生榛子果实产量的影响

当前,生产上采用叶面肥改善野生榛子产量的栽培管理技术正处于研究推广阶段。在通常条件下,由于野生榛子生长在山坡上,其土壤肥力不高,造成野生榛子结果期营养跟不上,导致榛果饱满度差,单果重低,严重影响榛果质量;为了更好的发挥野生榛子经济效益和检验叶面肥能否用于提高野生榛子产量。我们用氨基酸螯合液肥做了促进野生榛子增收的试验研究,并取得了良好的试验效果。建议在野生榛子生产上推广应用。     

氨基酸螯合液肥对落叶松浸种育苗、幼苗生长的影响

通过用氨基酸螯合液肥对落叶松浸种育苗、幼苗喷施的对比试验研究证明:氨基酸螯合液肥对促进落叶松苗圃浸种育苗、幼苗生长方面有着显著的促进作用。     

三康氨基酸生物液肥对大豆产量的影响

1材料、方法 1.1材料：三康氨基酸液肥；多克福种衣剂；大豆 87－ 9。 1． 2方法：于大豆播前 2天取液肥 80ml(100g)兑水 3． 5kg拌种 80kg，拌匀后堆闷 5～ 6h，灌袋待播， 5月 10日大田播种 100亩，相临两侧为同一品种的种衣剂包衣和白籽 (对照 )播种，播种量和播肥量同于大田，田间管理同于大田， 6月 20日进行化学除草，配方为亩用国产虎威 90g＋精稳杀得乳油 70g兑水 25kg，喷药后观察， 6月 21日亩喷施液肥 40ml兑水 25kg，包衣和对照各喷水 14． 5kg，观察受害后恢复情况，最后观察成熟情况，测产。 2结果与分析 2． 1通过对出苗…     

抚顺市引种杂交榛子物候期和产量调查

该文对从大连地区引进的4个品种(系)杂交榛子在抚顺市的物候期和产量进行了调查,以期为今后在抚顺地区良种推广提供可靠依据。     

不同修剪处理对大果榛子产量影响的研究

分别以抚顺地区大果榛子结果枝和7年生达维(大果榛子品种)为研究对象,研究了枝条处理和树形修剪技术。结果表明:枝条修剪都达到了增产的目的,但是中度修剪增产幅度最高,增产了76.34%;不同树形修剪处理提高了杂交大果榛子产量,为了获取最高产量应按B处理进行树形修剪,能增产62.59%。     

榛子果实生长的物理变化规律研究

该文研究3种榛子在受精后到成熟期间的果实体积、质量及果仁质量的变化。结果表明:3种榛子果实的体积和质量生长规律都是"快-慢-快"的"双S"型,果仁质量不断增长直至成熟。4月15日到5月15日对榛树施肥能够有效提高榛子的产量,此外在果实体积停止生长后对其追肥,能有效提高榛子果仁的品质和产量。     

密度对榛子经济林生长和结实量的影响

密度对榛子林生长和结实量影响的研究结果表明,2 m×2 m、1 m×1 m区的树高高于3 m×3 m、4 m×4 m区;结实量4 m×4 m区为820 kg/hm2,3 m×3 m为区664 kg/hm2,2 m×2 m区为540 kg/hm2,1 m×1 m区为450 kg/hm2.密度越大郁闭的越早,光能利用率差,结实量峰期来的早,1 m×1 m区结实量高峰期为5年,2 m×2 m区7年,3 m×3 m区11年,4 m×4 m区15年.     

提高大兴安岭榛子质量和产量的具体措施

榛子是中国主要坚果树种,平榛(Corylusheterophylla)是榛属植物中的主要品种,它的分布最广、资源蕴藏量最大、产量最高,品质优于其它种。在黑龙江、吉林、辽宁、内蒙古、河北、山西和陕西等省份都有分布,但尤属东北大兴安岭的榛子资源最为丰富。在大兴安岭林区榛子是某些林型中灌木的优势种,构成有:榛子白桦林、榛子兴安落叶松白桦林、榛子黑桦林、榛子蒙古栎白桦林、     

澳洲液肥对万寿菊高生长和花冠大小的影响

万寿菊(Tagetes erecta)别名臭芙蓉、蜂窝菊，为菊科万寿菊属1年生草本花卉。其花繁多、色泽鲜艳、花期长、栽培容易，适做花坛布景或花丛、花境栽培，切花水养可以保持10天以上，花与叶均可入药，具有很高的观赏和经济价值。为使其在株高、花形上更加整齐一致，进行了不同施肥间隔期及浓度澳洲液肥对万寿菊生长及开花影响的研究。     

沼肥施用量对苹果树生长及产量的影响

于2011—2012年,研究以施用沼渣30 kg·株-1为基肥,分别喷施20%、40%、60%、80%的沼液5次的沼肥不同组合对苹果树生长及产量的影响。结果表明:沼肥能显著促进苹果树生长、改善苹果品质、提高苹果产量,其中以施用沼渣30kg·株-1为基肥,60%沼液喷施5次的沼肥组合(处理3)效果最好。处理3在叶面积、百叶鲜重、叶厚度方面,分别比CK(喷施清水)增长31.40%(P0.01)、13.97%(P0.05)、22.08%(P0.01);6月下旬苹果树的外围新梢,比CK增长38.77%(P0.05);在可溶性糖含量、维生素C含量、可溶性固形物、可滴定酸含量、苹果硬度方面,分别比CK提高59.72%、48.82%、38.34%、30.77%、55.56%,差异极显著(P0.01);在单果重、优质果率、产量方面,分别比CK提高34.29%、47.30%、39.02%,差异极显著(P0.01)。     

不同肥料对油茶幼林生长和产量的影响分析

试验结果表明,不同肥料施肥试验地的平均树冠面积和油茶产量均为羊粪施肥>鸡粪施肥>有机无机肥施肥>复合肥施肥,油茶产量2018年度比2017年度有明显增加,树叶、果实病害感病植株数量均为复合肥施肥>有机无机肥施肥>鸡粪施肥>羊粪施肥,而且2018年度比2017年度均有下降。而4种肥料施肥的树高相差不明显。经方差分析,4种不同肥料施肥的油茶产量差异在小年呈显著差异水平,在大年呈极显著差异水平。     

花期喷施生长调节剂和氨基酸肥对枣树结实和育性的影响

以两个枣品种为试材,研究了花期喷施生长调节剂和氨基酸肥对自花授粉和自然授粉条件下的结实及种仁发育的影响。结果表明,低浓度的GA3(5~10 mg/L))虽可提高枣树的结实率但降低了枣果的可育率,当GA3浓度达到35 mg/L时结实率亦降低;150 mg/L的6-BA0、.02 g/L氨基酸肥对自花结实率、自然结实率、自然可育率都有降低作用。     

不同类型肥料对油茶春梢生长和果形指数及果实产量的影响

为了探究和推广油茶发展的"绿色"集约经营模式,促进油茶增产增收,以6年生"长林"系列油茶为研究对象,分别设配方肥、复合肥、有机肥3种施肥处理,以不施肥作对照,研究了不同施肥处理对"长林"系列油茶春梢生长、果实产量和果形指数等方面的影响。结果表明:不同类型的肥料在短期内对油茶春梢粗度、长度及油茶果实产量的影响不明显,但对油茶当年生叶片的SPAD值有影响,3种施肥处理的SPAD值明显大于对照,其中以配方肥的效果为最好,3种施肥处理的油茶果形指数均值均大于对照。     

氨基酸活性液肥对葡萄园土壤肥力及产量和品质的影响

日光温室红地球葡萄分别施用绿能牌、绿丰牌和冠菌牌3种氨基酸活性液肥后,对比分析了不同肥料对葡萄土壤微生物种群数量、土壤肥力、产量和品质的影响。结果表明:绿能牌氨基酸活性液肥处理后土壤有益微生物亚硝化细菌、硝化细菌、乳酸菌、纤维素分解细菌和放线菌的数量,土壤有机质含量,葡萄果实单粒重、可溶性固形物含量、Vc含量和产量最高,分别为1.30×104个/g干土样、1.70×104个/g干土样、9.10×104个/g干土样、6.10×104个/g干土样、27.00×104个/g干土样、49.90g/kg、18.06g、18.79%、148.08μg/g和33065.92kg/hm2,土壤有害微生物反硝化细菌、霉菌,果实可滴定酸含量最低,分别为13.00×104个/g干土样、0.03×104个/g干土样和0.29%,且果实色泽为深红。在日光温室红地球葡萄栽培中可施用氨基酸来提质增产。     

硼锌铜钼配施对香榧生长和果实产量及品质的影响

为了探明微量元素对香榧生长与果实产量和品质的影响情况,2010~2012年在大田幼苗试验的基础上进行了结果树定位试验,研究了不同微量元素肥料的配施对香榧幼苗生长和结果榧树果实产量的影响情况。大田幼苗试验结果表明:B、Zn肥的单施及配施都能促进香榧幼苗的生长,单施B肥的肥效最好,其冠幅生长量比CK提高了52.07%。结果树定位试验结果表明:施用微肥能提高相应微量元素在土壤中的有效含量水平,香榧叶片与果仁中的Cu、Zn、B含量也均会相应提高;微肥配施能有效促进香榧增产和提高其果实品质,BZn Cu Mo配施的增产效果最为明显,BZn Cu Mo处理下香榧的果实产量比CK增加236.14%,BZn配施对其增产也有显著的影响,BZn配施下香榧的果实产量比CK增加177.40%。微肥一次性施用(2010年)后,除对当年土壤微量元素的有效性和香榧叶片与果仁中的微量元素含量均有明显作用外,还有后效。"常规喷施"多元液体肥料和BZn配施处理都能显著提高香榧果仁中的粗脂肪含量。文中因此认为,增施微肥可以有效协调土壤养分的平衡,改善香榧的营养状况,从而促进其生长,提高果实产量,改善果实品质。     

不同氮、钾肥水平对红富士苹果产量和品质的影响

以红富士苹果为对象,施入不同水平的氮、钾肥,观察其对产量及其品质的影响,结果表明:在单独施用氮肥的处理中,果实单株平均产量明显高于对照,以施用氮肥1.0 kg/株处理的产量最高,为86.9 kg/株;在单独施用钾肥的处理中,果实单株产量变化不明显,变动在77.3~79.2 kg/株之间;在氮、钾肥混合处理中,果实单株平均产量显著高于对照,以施用氮肥1.0 kg/株+钾肥1.0 kg/株处理的产量最高,为98.6 kg/株。在果实硬度方面,以施用氮肥1.0 kg/株+钾肥1.0 kg/株处理的硬度最大,为7.21 kg·cm-2;在总糖方面,以施用氮肥1.5 kg/株+钾肥1.5kg/株处理的糖含量最大,为12.56%。     

Interactive effects of P-Cu fertilizers on growth and mineral nutrition of maritime pine

The interaction between copper and phosphorus was studied in a pot experiment involving a factorial combination of three levels of copper and three levels of phosphorus applied to maritime pine seedlings growing in podzolic sand.Biomass measurement showed that a single copper fertilization could be toxic to the plant and that better growth was obtained with a combination of both phosphorus and copper fertilization. Copper toxicity was shown to be dependent on phosphorus levels in the plant, and better growth was obtained with an appropriate balance between phosphorus and copper concentrations. A reciprocal inhibition between phosphorus and copper uptake was assumed to explain this pattern.     

Indented rings (hazel growth) of Norway spruce reduce anisotropy of mechanical properties

This study presents three-point bending test results of Norway spruce clear wood specimens loaded on the radial-longitudinal plane in two different load cases. The tested samples were graded as resonance wood for instrument making and were characterised by narrow annual rings and relatively low density. The modulus of elasticity (MOE) and the corresponding modulus of rupture (MOR) are illustrated separately for the samples with straight grain and the group showing the specific growth pattern of indented rings (‘hazel growth’). With the longitudinal wood anatomical direction parallel to span width, the fibre deviation caused by the indents reduces MOE and MOR values, whereas a ‘reinforcing’ effect of the indents could be observed for the load case with span width parallel to the radial direction. Both aspects lead to a reduction in anisotropy for hazel-growth Norway spruce (anisotropy MOE: indented rings 11.6, straight grain 14.7, anisotropy MOR: indented rings 6.9, straight grain 8.9), which partly explains the exceptional position of this growth pattern for the construction of high-class musical instruments with outstanding mechanical and acoustical performance.     

Soil temperature and plant growth stage influence nitrogen uptake and amino acid concentration of apple during early spring growth

In spring, nitrogen (N) uptake by apple roots begins about 3 weeks after bud break. We used 1-year-old 'Fuji' Malus domestica Borkh on M26 bare-root apple trees to determine whether the onset of N uptake in spring is dependent solely on the growth stage of the plant or is a function of soil temperature. Five times during early season growth, N uptake and total amino acid concentration were measured in trees growing at aboveground day/night temperatures of 23/15 degrees C and belowground temperatures of 8, 12, 16 or 20 degrees C. We used (15NH4)(15NO3) to measure total N uptake and rate of uptake and found that both were significantly influenced by both soil temperature and plant growth stage. Rate of uptake of 15N increased with increasing soil temperature and changed with plant growth stage. Before bud break, 15N was not detected in trees growing in the 8 degrees C soil treatment, whereas 15N uptake increased with increasing soil temperatures between 12 and 20 degrees C. Ten days after bud break, 15N was still not detected in trees growing in the 8 degrees C soil treatment, although total 15N uptake and uptake rate continued to increase with increasing soil temperatures between 12 and 20 degrees C. Twenty-one days after bud break, trees in all temperature treatments were able to acquire 15N from the soil, although the amount of uptake increased with increasing soil temperature. Distribution of 15N in trees changed as plants grew. Most of the 15N absorbed by trees before bud break (approximately 5% of 15N supplied per tree) remained in the roots. Forty-six days after bud break, approximately one-third of the 15N absorbed by the trees in the 12-20 degrees C soil temperature treatments remained in the roots, whereas the shank, stem and new growth contained about two-thirds of the 15N taken up by the roots. Total amino acid concentration and distribution of amino acids in trees changed with plant growth stage, but only the amino acid concentration in new growth and roots was affected by soil temperature. We conclude that a combination of low soil temperature and plant developmental stage influences the ability of apple trees to take up and use N from the soil in the spring. Thus, early fertilizer application in the spring when soil temperatures are low or when the aboveground portion of the tree is not actively growing may be ineffective in promoting N uptake.     

施肥对油橄榄生长量、有效花芽比例及产量的影响

为明确主要营养元素的合理配施,提高油橄榄幼树成枝能力及成年树有效花芽比例和单位面积产量,以幼树盆栽和大田随机区组2种方式,设计单因素和多因素正交试验,研究施肥对幼树生长量及成年树新梢生长量、有效花芽比例及产量的影响。结果表明:N、P、K元素的适量施入均能明显提高油橄榄幼树枝条萌发能力,平均比对照生长量增加51.71%,各元素最佳施入量分别是N 125 g、P 150 g、K 100 g,其中N元素施入对新梢生长促进作用最为明显,为对照的2.05倍,适量P元素对新梢生长有促进作用,施入过度反而会抑制幼树新梢生长,幼树生长对K元素施入量变化不敏感。5因素4水平正交试验结果表明:各元素施入对促进油橄榄新梢生长的最优组合为N 50 g、P 200 g、K 50 g、B 150 g、Zn 50 g,比对照增加81.05%。各元素施入提高有效花芽比例最优组合为N 100 g、P 150 g、K 50 g、B 200 g、Zn 125 g,比对照增加51.31%。影响油橄榄单株产量的最佳组合为N 25 g、P 50 g、K 100 g、B 100 g、Zn 25 g,比对照增产76.67%。