planting of layers

planting of layers的基本解释

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压条法

与planting of layers相关的网络例句 [注：此内容来源于网络，仅供参考]

Key forage plants consist of alfalfa, erect milkvetch, tall fescue, perennial ryegrass, crownvetch, white clover, red clover alsike clover, common orchardgrass, smooth brome; planting divisions with obviously optimal combinations of forage plants in Henan province cover the following 6 respects:（1）Northern plain forage planting division;（2）North-west mountain area forage planting division;（3）Middle-east low lying plain and nan-yang basin forage planting division;（4）Western mountain area forage planting division;（5）Huaihe river-south and Tongbai mountain area forage planting division;（6）Eastern plain forage planting division;These conclusions will provide necessary theoritical data or base for right choose of foeage plants as well as great development of grass industry in the future in Henan province.

结果表明：适合河南省的当家草种有10种，分别是：紫花苜蓿、沙打旺、苇状羊茅、多年生黑麦草、小冠花、红三叶、杂三叶、鸡脚草、无芒雀麦；适合河南省草业优质发展的草种区域有6个，分别是：豫北平原牧草种植区、豫西北黄土丘陵和太行山地种植区、豫中东低洼平原和南阳盆地种植区、豫西山地种植区、淮南与桐柏山区种植区、豫东平原种植区，并且明确了各区域内以当家草种为核心的草种优化组合。河南省当家草种的制定和草种区划的确定有利于为河南省各地草种的正确选择和草业未来大发展提供理论依据。

Larches of different ages have different net photosynthetic rate: the photosynthetic capacity of the young ones are bigger than that of the old ones; the stand density do not affect the net photosynthetic rate obviously; as far as the different stand classes are concerned, the diurnal changes of net photosynthetic rate is closely related to the photosynthetic active radiation. For the different layers of the crowns, there are greater ecological factors (illumination intensity, temperature, humidity etc.) on the upper layers than on the lower layers: the CO2 concentration of the lower layers is greater than that of the upper layers, which is indeed an exception; the net photosynthetic rate on the upper layers of the crown is generally greater than that of the lower layers. It showed that the CO2 concentration is not a main factor in the natural changing range of the CO2 concentration. Different directions of the crown have different photosynthetic active radiation, which is generally like exposed to the sun﹥North﹥in the shade of crown. However, the changes of net photosynthetic rate are not quite the same, which is North﹥exposed to the sun﹥in the shade of crown.

不同年龄的兴安落叶松净光合速率不同，年龄小的个体光合能力高于年龄大的个体；群团密度与净光合速率没有显著的相关关系；而对不同分级木，净光合速率日进程变化规律与光合有效辐射有着密切的联系；林内树冠不同层次各生态因子有上层大于下层的趋势，而CO2浓度在下层的含量高于上层，净光合速率上层普遍大于下层，说明在林内自然CO2浓度变幅内，CO2浓度不是主要因子；兴安落叶松树冠不同方向的光合有效辐射不同，一般向阳﹥北向﹥背阴，而净光合速率变化有北向﹥向阳﹥背阴的趋势。

Planting system of grain oil-bearing and fresh crop, planting index, per unit area yield, gross output, planting way and crop rotation system of the whole Tibet in different period, as well as the planting situations of agricultural districts of river valley such as Lhasa, Lhoka, Shikaze,etc. were analyzed. The main agricultural district of Tibet at present were summarized:(1) Crop composition and distribution is unreasonable;(2) The intensive cropping development is slow;(3) The planting mode is single.

通过分析全区不同时期种植指数，粮、经、饲作物结构，单产，总产，种植方式和轮作体制，以及拉萨、山南、日喀则等河谷农区的种植情况，概括和总结出目前西藏主要农区：(1)作物布局不尽合理；(2)多熟种植制的发展缓慢；(3)种植体制模式单一。

与planting of layers相关的网络解释 [注：此内容来源于网络，仅供参考]

planting on mounds：垄作

planting of layers ==> 压条法 | planting on mounds ==> 垄作 | planting pit ==> 定植穴

clump planting：丛植

2.0421 孤植specimen planting, isolated planting | 2.0422 丛植clump planting | 2.0423 组植group planting

planting mattock：栽植锄,栽植镐

planting material 种植材料,栽培材料 | planting mattock 栽植锄,栽植镐 | planting mechanism 排种装置