基本苗

化控条件下小麦基本苗密度对产量的效应

Effect of density of winter wheat basic seedling on Grain Yield in condition of chemical manipulation

在施氮量180kg/ha条件下，增加基本苗，穗数相应增加。

When nitrogen application amount was 180 kgN / ha , ear number could increase with the increase of basic seedling number .

因此，栽双株秧必须有较高的N肥施用量和适宜的基本苗数，最后才可能有一个理想的产量。

As a result , twin-seedling paddy must have higher AAN and suitable basic seedlings number in order to have a ideal yield .

在贵州三系杂稻制种基地玉屏县，对三系杂稻新组合优IA／4761进行了制种母本不同栽插基本苗数的试验研究。

Rational plant density of female parent of ternary hybrid combination You IA / 4761 was tested and defined at the seed production base of Yuping county .

研究了中粳稻9404适宜栽培密度和施肥技术，结果表明：该品种的适宜栽插密度为：45万穴／ha，2－3本基本苗／穴。

The optimum planting density and fertilization techniques of semilate Japonica rice 9404 were studied . The optimum combination of cultivation measures was as follows : 0.45 million hills / ha . 2-3 seedlings / hill ;

其中：X&合理的基本苗；

Where , X represents reasonable basic population ;

播后9,12d用药，对水稻基本苗基本无影响；

Application of 9 and 12 days treatment had no effect on paddy seedling ;

西瓜茬晚稻基本苗数与施肥量研究

Study on Basic Seedlings of Late Rice Following Watermelon and Amount of Applied Nitrogen Fertilizer

不同品种间播种量相似，基本苗一致。

Sowing rates between different species is similar , the basic seedlings are basically identical .

结果表明，相同基本苗情况下，缩小行距放稀株距均能显著提高2个小麦品种的成穗数，增产显著。

The results showed the narrow row spacing can remarkable raise wheat ear numbers and yield .

基本苗数和施氮量对水稻氮吸收与利用的影响

Effects of planting density and nitrogen application rate on absorption and utilization of nitrogen in rice

对88个试验点的资料分析表明，多抗、丰产、优质、广适小麦新品种绵阳26的主要性状：基本苗、有效穗、穗粒数、千粒重、株高与产量存在真实的回归关系。

Mianyang 26 is a newly-developed high-yielding , multi-resistant , good quality and widely adaptable wheat variety .

其中分蘖成穗率与基本苗呈反比，与产量呈正比例关系。

The earing percentage had a negative relationship with basic seeding , and an active relationship with yield .

明确了晚播麦高产应适当加大基本苗，走以主茎成穗为主的途径。

The techniques of high yield of late - seeding wheat was the suitable increasement of basic seedlings .

父本育秧方式与母本基本苗对水稻制种产量的影响

Yield of Rice Hybrid Seed Production Effected by Methods of Raising Seedlings and Basic Seedlings Number of Female Parent

对于正常播期的播种量以12万/亩基本苗时，经济效益最高；

When the number of basic seedlings with normal sowing date was 12104 per mu , the profit was highest .

施氮量和基本苗对小麦干物质积累量和产量及氮肥利用率的影响

Effects of Nitrogen Rate and Seeding Number on Dry Matter Accumulation , Grain Yield and Nitrogen Use Efficiency of Wheat

粳型杂交稻榆杂29穗颈稻瘟与肥力、密度和基本苗的相关性

Correlation between the panicle rice blast disease of Yuza 29 dian-type hybrid rice and the fertilization , planting density as well as basic seedlings

结菱的成株均来自基本苗及第1期发生的分蘖，但成株率仅50～70%。

Its productive shoots with only 50-70 % of total tillers developed form the transplanted plants and from the tillers in the first tillering period .

在氮肥施用量相同时，基本苗增加，每穗粒数、蛋白质及其组分含量均呈下降趋势。

Grain number per spike , protein and its component contents decreased with the increase of basic seedling number at the same nitrogen application amount .

通过多年的小区试验、高产攻关与高产示范，对冬小麦不同栽培方法的冬前主茎叶龄数、基本苗和施肥量进行了研究。

Through many years of survey and investigation of plot tests and high-yielding cultivation , the main stem stage , the basic seedlings and the fertilizer rate were studied .

适当减少基本苗，控制群体分蘖，依靠增加单株分蘖数实现合理群体指标，可有效地提高个体光合能力，增强开花后的群体光合能力，从而获得高产。

Decreasing in plant population density , controlling community tillers and increasing the number of single-plant tillers could increase the photosynthetic ability of community and individuals thus get higher yields .

其中，播前方案设计包括产量目标与产量结构，品种选择，播种期，基本苗和播种量，移栽方案，肥料运筹及水分管理等；

The pre-sowing cultivation plan includes yield level and components , variety type , sowing date , population density and sowing rate , transplanting plan , fertilization and water management .

采用裂区设计试验，对优质水稻赣晚籼31号不同施肥和基本苗数处理下的产量及其构成因素进行了比较分析。

Differences in the yields and yield components of the new high quality rice new variety " Ganwanxian 31 " under different fertilizer application levels and basic seedlings were analyzed by split-plot experiment .

结果表明，有效穗与基本苗呈正相关关系，但穗实粒数与有效穗呈负相关关系。

The result showed that the effective ear was correlated with the actual kernel and the essential seedling , while negative correlation had been observed between the actual kernel and the effective ear .

通过适当增加每窝栽插苗数的中株密植技术，确定望天田深水管理的适宜基本苗。

An experiment of creasing rice transplanted number per bunch , named as middle density cultivation , was conducted to identify the appropriate essential seedling rate in deep water in non-irrigated paddy field .

施入钾肥改善了冬小麦的株高、基本苗数、分蘖数、总茎数、成穗数、穗粒数和最终产量，提高土壤的钾素营养。

K fertilizer applying improved the height , basic seedling , tiller number , total stem number , efficient spike , grain number per spike and yield of winter wheat , also enhanced soil K nutrient .

结果表明：（1）易旱二晚田二晚栽培的关键产量性状是基本苗、有效穗、全生育期天数；

As the results , ( 1 ) as late season rice cultivated in the drought-prone fields , its critical yield traits were initial seedling per ha , effective panicles per ha and days to maturity ;

使之有可能通过事先计算来确定合理的基本苗。

So it is possible to determine the suitable quantity of the basic winter wheat seedlings by way of calculation in advance . We also give a new correction factor to simplify the calculation of the Unstatistic .

结果表明，各因子对纹枯病发病轻重的影响大小顺序为：氮肥用量>播期>基本苗数>追氮时期>氮肥基追比。

The results showed that the importance order of the effect of each factor on the disease index is nitrogen level > seeding time > basic seeding > N fertilizing time > ratio of ground and additional fertilizer .