追肥

叶菜类蔬菜中硝酸盐含量随氮肥用量增加呈上升趋势，其中菠菜最为明显，追肥后10d出现硝酸盐积累高峰。

Nitrate content of leaf vegetables increased with higher fertilizer application , and it reached summit after ten_day top application , which spinach was most obvious .

这充分表明叶龄追肥对高原玉米增库促源具有良好的效果。

The facts fully show that leaf-age top application increases storage-capacity , source of plateau corn efficiently .

保护地草莓不同追肥时期~（15）N吸收利用特点初探

Studies on the ~ ( 15 ) N Absorption and Utilization Characteristics of Strawberry in Different N Application Stage

5黄瓜对N、K的利用率随着追肥量增加而降低，而P和微量元素的利用率变段崇香：日光温室黄瓜有机基质栽培合理基质配方及需肥特性的研究化与之相反。

2.5 The utilization rate of NK decreased , that of P and microelements increased , with the fertilizer amount increasing .

30天后统计疗效。开花后30d追肥无促进作用；

There was no any acceleration when fertilizing at 30 days after flowering ;

本试验以施K量270kg／hm2，基追肥比例3：7为最优组合。

In this experiment , the best combination is 270 kg / hm2 in K application rate and 3:7 in BS ratio .

KH2PO4追肥对无土栽培剪头后马铃薯植株微型薯产量的影响

Effect of KH_2PO_4 top application on yield of virus-free and multiple terminal buds cut potato plantlets under soilless culture

同时利用15N年示踪技术研究不同熟相下追肥方法对化肥氮去向。

15N tracing technique for determining the fate of fertilizer nitrogen for wheat with different maturing phases was also used .

有机肥和追肥提高了旗叶中磷酸蔗糖合成酶（SPS）的活性，该酶是决定蔗糖供应能力的关键调节酶。

Top dressing and organic fertilizer increase the activity of the sucrose phosphate synthase ( SPS ) in flag leaf . It was the key enzyme determining the sucrose synthesis .

从不同时期不同部位养分吸收特点和株型变化对产量构成因素的分析得出，夏大豆最佳追肥时期为初花期至开花后10d。

The conclusion was that the best fertilizing stage of summer soybean was from early flowering stage to 10 days after flowering .

利用叶绿素计（SPAD-502）诊断水稻氮素营养和推荐追肥的研究进展

Research progress on diagnosis of nitrogen nutrition and fertilization recommendation for rice by use chlorophyll meter

施肥后田面水中TN、TP和DIP可作为稻田N、P流失的主要指标，应着重控制基肥施用后N、P的径流流失，以及追肥施用后尿素的水解速度。

TN , TP and DIP could be cited as key parameters for N and P runoff loss within 3 days after urea application . A week after fertilization was the critical period for controlling loss of N and P from paddy fields .

含DMPP硫硝铵不同基追肥比例对小青菜硝酸盐累积及品质的影响

Effects of Different Ratios of Basal Application to Top Dressing of Ammonium Sulphate Nitrate ( ASN ) Fertilizer with DMPP on Nitrate Accumulation and Quality of Greengrocery

移栽后30d追肥，追氮量30%时，烟株上、下部叶成熟过程中碳氮代谢协调，适时地从以氮代谢为主转变为以碳代谢为主。

The metabolism of carbon and nitrogen was relatively harmonious during the maturing of upper and lower leaves in the treatments dressed on 30 days after transplanting with 30 % of total N.

在施氮量相同的情况下，随着追肥次数的增加，玉米叶片的叶绿素含量和穗位叶中可溶性蛋白含量、保护酶SOD、POD活性呈升高趋势，叶片枯黄比例和MDA含量逐渐降低。

In the case of nitrogen the same as the increase in the number of top dressing , corn ear leaf chlorophyll content and leaf soluble protein content in the protective enzymed SOD , POD activity tended to increase the proportion of leaf scorch and MDA were gradually decreased .

在氮肥追肥、低施氮量的情况下，与未添加DMPP的处理相比，施用DMPP的处理氮肥利用率提高了13.4%。

Compared with the treatment without DMPP , nitrogen recovery rate was improved by 13 . 4 % in the treatment adding DMPP on conditions top-dressing with top-dressing and lower application rate .

提出进一步提高利用SPAD-502叶绿素计诊断水稻氮素营养状况与推荐追肥精度尚需解决的几个问题。

For a purpose of further improving the precision of nitrogen status diagnosed by SPAD-502 meter and fertilizer recommendation , few questions need to be settled was put forward .

叶绿素计（SPAD-502）在监测水稻氮素营养水平和及时提供追肥所需的信息方面有快速、简便、无损的特点，但其精度常受多种因素的影响。

SPAD-502 meter provides a simple , fast and nondestructive method to monitor rice nitrogen status and predict the need for fertilizer-N topdressing on time , but the precision was influenced by many factors .

优质品种的适宜施氮量在15～20kg／666.7m2之间，追肥量不应低于总量的40%，追期以拔节或拔节、抽穗期为宜。

The suitable N amount applied to quality varieties ranges from 15 to 20kg / 667m2 , and 40 % of the N application is applied at jointing stage or jointing - heading stage .

在大田栽培条件下，运用15N示踪技术研究了不同施氮量和底追肥比例对小麦氮素利用和子粒产量及蛋白质含量的影响。

Field experiments were conducted to study effects of nitrogen application rate and ratio of base and topdressing on nitrogen utilization , grain yield , and grain protein content in winter wheat using () ~ ( 15 ) N tracer technique .

并综述了通过量化SPAD读数与氮的关系，提高诊断水稻氮素营养精度；通过量化SPAD读数与追肥关系，提高SPAD-502叶绿素计诊断法推荐施肥精度的研究现状；

The research progress on improving the precision of rice nitrogen diagnosis by quantifying the relationship of SPAD reading to nitrogen content , as well as nitrogen recommendation by quantifying the relationship of SPAD reading to topdressing were also reviewed .

运用15N对冬小麦不同追肥时期的效果、氮肥利用率及氮素在秸秆、籽粒中的分配、土壤残留、挥发损失进行了研究。

The study of urea dressing with isotope 15N at different growth stages of winter wheat was conducted at Jizhou City . The N use efficiency , N distribution in straw and seeds , N remain in soil and N volatilization loss was studied .

结果表明：在西瓜生长的中后期，不同追肥量对西瓜的生长、产量、品质、光合指标的影响达到了显著水平，其中每株以追肥量为60g时对西瓜的影响最为明显。

The results indicated that the amounts of top-dressing fertilizer had remarkable effects in the middle and late stage of watermelon growth , and the most remarkable effects occurred in the treatment with top-dressing fertilizer of 60 g per plant .

籽粒蛋白质含量随着追肥时期的后延而增加，开花后20d达到最高（45.47%）；

Content of grain protein was increased with the postponement of fertilizing stage , and it reached the top at 20 days after flowering ( 45.47 % ) . The grain yield was highest if fertilized at early flowering stage among different fertilizing stage .

在0～210kg·hm-2施氮量范围内，增加追肥比例能增加产量，产值，均价，提高上等烟比例，且施氮量越低，基追肥比例因素的影响效果越明显。

In the scope of 0 ~ 210 kg / hm ~ 2 , the increasing the basal-dressing proportion could increase yield , value , average , improve the proportion of superior tobacco , and that the lower nitrogen , the more obvious .

2追肥后间隔不同天数采收不同施肥处理樱桃番茄果实与土壤（0～40cm土层）中的硝酸盐含量也呈现先上升，在施肥后第6～9天达到最大值，而后又下降的趋势。

The nitrate content in the fruits and the soil ( 0 - 40 cm soil layer ) of every fertilizer group had a tendency that moved upward in early and attained maximal value at 6 - 9 days later , then dropped once more after the same time topdressing .

新疆棉花氮营养诊断及追肥推荐研究

Study on Cotton Nitrogen Diagnosis and Topdressing Recommendation in North Xinjiang

旱地小麦追肥关键时期研究

Study on the Key Time of Applying Fertilizers for Dry Wheat

根外追肥对甘蓝结实率及种子生活力的影响

Effects of Foliage Dressing on Setting Rate and Seed Vigour of Cabbage

应用土壤测试技术指导冬小麦合理追肥

Recommendation for Topdressing N of Winter Wheat by Soil Testing