Resultados de búsqueda - "field experiment"

Exploring the viability of re-introducing Lablab purpureus (L.) Sweet as a multifunctional legume in northern Tanzania por Forsythe, Christopher

“…Also included in the thesis was a field experiment where several different indigenous lablab accessions were field tested either sole cropped or intercropped with maize to determine if genetic insect resistance is available among them. …”

Rehabilitación de suelos salino - sódicos : evaluación de enmiendas y de especies forrajeras por Bandera, Ramiro

Enlace del recurso
Enlace del recurso

Combining phosphorus placement and water saving technologies enhances rice production in phosphorus-deficient lowlands por Bauw, P. de, Vandamme, Elke, Senthilkumar, Kalimuthu, Lupembe, A., Smolders, E., Merckx, Roel

“…Field and pot experiments were set up to evaluate combinations of water saving technologies and micro-dose P placement methods (i.e. the localized application of a small P dose to a sub-surface area, often combined with seeds into the planting hole) with due attention to treatment effects on root architecture. A two-year field experiment was set up in a lowland rice field in Tanzania with factorial combinations of different levels of water supply (field capacity, alternating wetting drying, permanent flooding) and P application (no P; 3.45 and 6.90 kg ha−1 placement versus 25 kg ha−1 broadcast), thereby testing residual effects in year 2. …”
Enlace del recurso

SUB1 varieties increased rice (Oryza saliva) yield in flood-prone rainfed lowlands of coastal regions por Sarangi, S.K., Singh, S., Maji, B., Sharma, Parbodh Chander, Srivastava, A.K., Burman, D., Mandal, S., Krishnamurthy, S.L., Singh, U.S., Ismaili, A.M.

“…Based on the results of field experiments and farmers’ preferences, CR1009-Sub1, BR11-Sub1, and Swarna-Sub1 could be recommended for cultivation in areas affected by flash floods in coastal areas of India.…”
Enlace del recurso

The critical period of weed interference in upland rice in northern Guinea savanna: Field measurement and model prediction por Amadou, T., Jean, M.S., Yawovi, M.D.

“…The critical period of weed infestation determined from the field experiment was similar for the three New Rice for Africa (NERICA) varieties and the O. sativa parent (WAB 56-104), and was between 14 and 42 days after seeding (DAS). …”
Enlace del recurso

Investigating effects of deficit irrigation levels and fertilizer rates on water use efficiency and productivity based on field observations and modeling approaches por Shoukat, M. R., Shafeeque, Muhammad, Sarwar, A., Mehmood, K., Cheema, M. J. M.

“…This study aimed to investigate the effects of deficit irrigation and nitrophos fertilizer levels on bread wheat grain yield, yield parameters, nutrient use and water use efficiencies in bed planting wheat compared to traditional farmers’ practices in the flat sowing method. The two-year field experiment followed a randomized complete block design of three replications, taking three irrigation treatments according to the requirement of crop estimated by CROPWAT model (100% of ETC), deficit irrigation (80% of ETC), and deficit irrigation 60% of ETC and three nitrophos fertilizer treatments (farmer practice 120 kg N ha-1, optimized 96 kg N ha-1, and 84 kg N ha-1) at different growth stages. …”
Enlace del recurso

Layering smart management practices to sustainably maintain rice yields and improve water use efficiency in eastern India por Chaurasiya, Asheesh, Dutta, S.K., Singh, Ajoy Kumar, Kumar, Sanjay, Kohli, Anshuman, Homa, Fozia, Kumar, Arun, Gathala, Mahesh Kumar, Laing, Alison M.

“…These have separately been shown to reduce the irrigation water requirement for rice cultivation while maintaining yields similar to those of traditional high yielding long-duration varieties. We conducted a field experiment over two rice-growing seasons to examine the effects on rice grain yield and water productivity of layering these improved management practices, compared to conventional PTR with traditional long-duration rice. …”
Enlace del recurso

Quantifying potential yield and yield gaps of soybean using CROPGRO-soybean model in the humid tropics of southwestern Ethiopia por Mekonnen, A., Getnet, M., Nebiyu, A., Abebe, A.T.

“…The model calibration and evaluation were done with a field experiment conducted on sowing dates of Clark 63 k and SCS-1 soybean verities in 2019 and 2020. …”
Enlace del recurso

High-Temperature and Drought Stress Effects on Growth, Yield and Nutritional Quality with Transpiration Response to Vapor Pressure Deficit in Lentil por El Haddad, Noureddine, Choukri, Hasnae, Ghanem, Michel Edmond, Smouni, Abdelaziz, Mentag, Rachid, Rajendran, Karthika, Hejjaoui, Kamal, Maalouf, Fouad, Agrawal, Shiv Kumar

“…In the present study, we evaluated 20 lentil genotypes under field conditions and controlled environments with the following objectives: (i) to investigate the impact of temperature stress and combined temperature-drought stress on traits related to phenology, grain yield, nutritional quality, and canopy temperature under field conditions, and (ii) to examine the genotypic variability for limited transpiration (TRlim) trait in response to increased VPD under controlled conditions. The field experiment results revealed that high-temperature stress significantly affected all parameters compared to normal conditions. …”
Enlace del recurso

Enhancing maize yield in a conservation agriculture-based maize (Zea mays)- wheat (Triticum aestivum) system through efficient nitrogen management por Kumar, Kamlesh, Parihar, Chiter Mal, Nayak, Hiranmay S., Godara, Samarth, Avinash, G., Patra, Kiranmoy, Sena, Dipaka Ranjan, Reddy, Kedharnath Srikanth, Das, T.K., Jat, S.L., Gathala, Mahesh Kumar, Singh, Upendra, Sharawat, Y.S.

“…This study evaluated the impact of contrasting tillage and nitrogen management options on the growth, yield attributes, and yield of maize (Zea mays L.) in a conservation agriculture (CA)-based maize-wheat (Triticum aestivum L.) system. The field experiment was conducted during the rainy (kharif) seasons of 2020 and 2021 at the research farm of ICAR-Indian Agricultural Research Institute (IARI), New Delhi. …”
Enlace del recurso

Genetic dissection of value-added quality traits and agronomic parameters through genome-wide association mapping in bread wheat (T. aestivum L.) por Vishwakarma, Manish K., Bhati, Pradeep K., Kumar, Uttam, Singh, Ravi P., Kumar, Sundeep, Velu, Govindan, Gurvinder Singh Mavi, Thiyagarajan, Karthikeyan, Dhar, Narain, Joshi, Arun K.

“…Additionally, 20 SNP MTAs were detected for yield-related traits based on a field experiment conducted in Ludhiana on 7D (4) and 4D (3) chromosomes, while 44 SNP MTAs were reported for Jabalpur on chromosomes 2D (6), 7A (5), 2A (4), and 4A (4). …”
Enlace del recurso

Dynamics of the rice blast fungal population in the field after deployment of an improved rice variety containing known resistance genes por Wang, Wenjuan, Su, Jing, Chen, Kailing, Yang, Jianyuan, Chen, Shen, Wang, Congying, Feng, Aiqing, Wang, Zonghua, Wei, Xiaoyan, Zhu, Xiaoyuan, Lu, Guodong, Zhou, Bo

“…Here, to investigate the mechanism underlying the breakdown of disease resistance, we conducted a six-year field experiment to monitor the evolution of M. oryzae populations in Qujiang from Guangdong. …”
Enlace del recurso

Drainage and leaching losses of nitrogen and dissolved organic carbon after introducing maize into a continuous paddy-rice crop rotation por He, Yao, Lehndorff, Eva, Amelung, Wulf, Wassmann, Reiner, Alberto, Ma. Carmelita, von Unold, Georg, Siemens, Jan

“…We tested this hypothesis in a 3.5-year field experiment using monolith lysimeters cropped with either (i) single paddy rice in the wet season and maize in the dry season (maize-paddy rice, M-MIX), or (ii) double paddy rice (R-WET) as control. …”
Enlace del recurso

Biochemical factors conferring shoot tolerance to oxidative stress in rice grown in low zinc soil por Frei, Michael, Wang, Yunxia, Ismail, Abdelbagi M., Wissuwa, Matthias

“…The aim of this study was to identify biochemical mechanisms conferring tolerance to Zn deficiency-induced oxidative stress. A field experiment and three nutrient solution experiments were conducted with the intolerant genotype IR74 and recombinant inbred lines (RILs) derived from a cross between IR74 and the tolerant landrace Jalmagna. …”
Enlace del recurso

Estimating crop coefficients for vegetable production and agricultural water management under climate change in sub-humid tropics por Tegegne, Desalegn, Schmitter, Petra S., Worqlul, A. W., Lefore, N.

“…This study aimed to estimate how the crop water demand will change under different water management practices and climate change scenarios. The field experiment using irrigation decision-making tools was carried out in 2016 and 2017 in Lemo, Ethiopia. …”
Enlace del recurso

QTL pyramiding reveals a crucial role of DEEPER ROOTING 1 on root system architecture adapted to drought stress in rice por Iba, Momoha, Centeno, C. Arloo, Kitomi, Yuka, Natividad, Mignon A., Quintana, Marinell R., Irie, Kenji, Henry, Amelia, Uga, Yusaku

“…Next, we examined the NILs and PYLs for shoot biomass production under drought conditions in lysimeter and field experiments. Two lines (DRO1-NIL and Sta1+DRO1-PYL) had a higher shoot biomass production under drought than IR64. …”
Enlace del recurso

Two-dimensional modeling of nitrate transport in canola field under Moistube irrigation using HYDRUS 2D/3D por Dirwai, Tinashe Lindel, Senzanje, A., Mabhaudhi, T.

“…While previous studies have explored wetting patterns under Moistube Irrigation (MTI) and discussed qualitative nitrate retention, few have quantitatively simulated nitrate transport through variably saturated zones with fine temporal-spatial resolution. Methods: A field experiment was conducted in a 20 m × 8 m naturally ventilated greenhouse using three irrigation regimes: (i) full irrigation (100% ETc), (ii) optimal deficit irrigation (75% ETc), and (iii) extreme deficit irrigation (55% ETc). …”
Enlace del recurso

Efficacy of lemongrass (Cymbopogon citratus DC Stapf) and wild spikenard (Hyptis suaveolens L. Poit) compost on the productivity of cowpea (Vigna unguiculata L. Walp) por Olasan, O.J., Aguoru, C.U., Omoigui, L.O., Ngbada, N.A., Agbulu, I.N.

“…This study compared the effects of composts from lemongrass (Cymbopogon citratus) (CCT), wild spikenard (Hyptis suaveolens) (HYS) and NPK fertilizers on the growth and yield performances of three varieties of cowpea (FUAMPEA1, FUAMPEA2 and SAMPEA14). A field experiment was designed using the Randomized Complete Block Design of 3 blocks, 3 varieties, 3 treatments, and 5 replications. …”
Enlace del recurso

Efficacy of lemongrass (Cymbopogon citratus DC Stapf) and wild spikenard (Hyptis suaveolens L. Poit) compost on the productivity of cowpea (Vigna unguiculata L. Walp) por Olasan, O.J., Aguoru, C.U., Omoigui, L., Ngbada, N.A., Agbulu, I.N.

“…This study compared the effects of composts from lemongrass (Cymbopogon citratus) (CCT), wild spikenard (Hyptis suaveolens) (HYS) and NPK fertilizers on the growth and yield performances of three varieties of cowpea (FUAMPEA1, FUAMPEA2 and SAMPEA14). A field experiment was designed using the Randomized Complete Block Design of 3 blocks, 3 varieties, 3 treatments, and 5 replications. …”
Enlace del recurso

Optimizing root physiology and soil nutrient balance in rice–wheat sequence using polyhalite for enhanced profitability in the Indo-Gangetic plains of India por Kumar, V., Shekhawat, K., Rathore, S.S., Upadhyay, P.K., Singh, R.K., Gairola, A., Sharma, D., Pandey, A., Roy, S.

“…In contrast, polyhalite, a natural multi-nutrient mineral containing K, magnesium (Mg), calcium (Ca), and S, presents promising alternative for mitigating nutrient imbalances, enhancing soil health, and higher farm profitability. A field experiment at ICAR-Indian Agricultural Research Institute, New Delhi, was conducted during rabi 2021–22 to evaluate K sources viz. polyhalite, bentonite, and MOP in optimizing plant growth and nutrient uptake. …”
Enlace del recurso