نتایج جستجو برای: direct sowing

تعداد نتایج: 430615  

Journal: :Remote Sensing 2017
Tao Liu Rui Li Xiuliang Jin Jinfeng Ding Xinkai Zhu Chengming Sun Wenshan Guo

The uniformity of wheat seed emergence is an important characteristic used to evaluate cultivars, cultivation mode and field management. Currently, researchers typically investigated the uniformity of seed emergence by manual measurement, a time-consuming and laborious process. This study employed field RGB images from unmanned aerial vehicles (UAVs) to obtain information related to the uniform...

2017
Shakeel Ahmad Qaiser Abbas Ghulam Abbas Zartash Fatima Atique-ur-Rehman Sahrish Naz Haseeb Younis Rana Jahanzeb Khan Wajid Nasim Muhammad Habib ur Rehman Ashfaq Ahmad Ghulam Rasul Muhammad Azam Khan Mirza Hasanuzzaman

Understanding the impact of the warming trend on phenological stages and phases of cotton (Gossypium hirsutum L.) in central and lower Punjab, Pakistan, may assist in optimizing crop management practices to enhance production. This study determined the influence of the thermal trend on cotton phenology from 1980-2015 in 15 selected locations. The results demonstrated that observed phenological ...

Journal: :E3S web of conferences 2023

The results of the study showed that various methods tillage affect population soil with pathogens. Less populated was where traditional carried out - autumn plowing. With this treatment, in 0-10 cm layer, colonization root rot conidia lower than minimal and zero sowing. In 10–20 same trend persisted. presence genus Alternaria observed mainly layer 0-10; 0-20cm negligible. At sowing, 10-20 were...

2017
Cristiano Zerbato Carlos Eduardo Angeli Furlani Antonio Tassio Santana Ormond Lucas Augusto da Silva Gírio Franciele Morlin Carneiro Rouverson Pereira da Silva

The successful establishment of agricultural crops depends on sowing quality, machinery performance, soil type and conditions, among other factors. This study evaluates the operational quality of mechanized peanut sowing in three soil types (sand, silt, and clay) with variable moisture contents. The experiment was conducted in three locations in the state of São Paulo, Brazil. The track-samplin...

2014
Philipp von Gillhaussen Uwe Rascher Nicolai D. Jablonowski Christine Plückers Carl Beierkuhnlein Vicky M. Temperton

Priority effects occur when species that arrive first in a habitat significantly affect the establishment, growth, or reproduction of species arriving later and thus affect functioning of communities. However, we know little about how the timing of arrival of functionally different species may alter structure and function during assembly. Even less is known about how plant density might interac...

2018
Yan Zhao Weipeng Zhao Conghui Jiang Xiaoning Wang Huaiyang Xiong Elena G. Todorovska Zhigang Yin Yanfa Chen Xin Wang Jianyin Xie Yinghua Pan Muhammad A. R. Rashid Hongliang Zhang Jinjie Li Zichao Li

Dry direct-seeding of rice is rapidly increasing in China, but variable planting depth associated with machine sowing can lead to low seedling emergence rates. Phenotype analysis of 621 rice accessions showed that mesocotyl length (ML) was induced by deep soil covering and was important in deep-sowing tolerance in the field. Here, we performed and compared GWAS using three types of SNPs (non-sy...

2009
A. Cirujeda A. Taberner

Lolium rigidum Gaud. is one of the most common weed species in winter cereals in Northeastern Spain. Herbicide resistance has been growing since the mid 90’s and exclusive herbicide use is not enough in many cases, so that it is necessary to combine as many control tools as possible. Six field trials have been conducted during the cropping seasons 200102, 2002-03 and 2003-04 on winter cereal in...

2013
A. A. Elfeel

Seeds of Balanites aegyptiaca stored for one year were germinated using cold and boiling water pre-treatments and different sowing orientations. Whole fruits were soaked in cold water for (18, 24 and 48 hours, respectively), while extracted sun dried seeds were immersed in boiling water for 7 minutes. Seeds of each treatment were sown in three orientations (seeds laid vertically with stalk end ...

2007
SHOUKAT H. SHAH

Apre-sowing treatment was applied to black cumin (Nigella sativa L.) seeds, which were surface-sterilized and soaked for 5, 10 or 15 h in 10–6, 10–5, or 10–4M aqueous solution of gibberellic acid (GA). The potted plants were then analysed at 50, 70 and 90 days after sowing for leaf chlorophyll (Chl) content, stomatal conductance (gs), carbonic anhydrase (CA) activity, nitrate reductase (NR) act...

2012
Núbia Maria Correia Bruno Daniel Marcela Basile Leite

The objective of this study was to evaluate the effects of sowing procedures and the seed sowing rate of kudzu (Pueraria phaseoloides cv. ‘Comum’) in corn on corn plant development, forage dry matter production, weed infestation and soybean plant development and yield. The kudzu seeds were either broadcasted over the terrain or sown in furrows (in the main plots) at rates, in both cases, of 400...

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