scholarly journals Sequential Cropping Effects of Vegetable Cowpea on Cassava in Cassava-cowpea Intercrop, Umudike, Southeast Nigeria

2018 ◽  
Vol 17 (2) ◽  
pp. 123-135
Author(s):  
Mbah, Emmanuel Ukaobasi
Keyword(s):  
Sequential Cropping

scholarly journals Productivity and Water Source of Intercropped Wheat and Rice in a Direct-sown Sequential Cropping System: The Effects of No-tillage and Drought

2005 ◽  
Vol 8 (4) ◽  
pp. 368-374 ◽  
Author(s):  
Morio Iijima ◽  
Tomoko Asai ◽  
Walter Zegada-Lizarazu ◽  
Yasunori Nakajima ◽  
Yukihiro Hamada
Keyword(s):  
Cropping System ◽  
Water Source ◽  
No Tillage ◽  
Sequential Cropping

scholarly journals Nitrogen application timing and soil inorganic nitrogen dynamics under no-till oat/maize sequential cropping

2006 ◽  
Vol 30 (4) ◽  
pp. 707-714 ◽  
Author(s):  
Jeferson Dieckow ◽  
Egon José Meurer ◽  
Roberto Luiz Salet
Keyword(s):  
Inorganic Nitrogen ◽  
N Uptake ◽  
Soil Surface ◽  
Undisturbed Soil ◽  
N Application ◽  
Residue Decomposition ◽  
No Till ◽  
Maize Plants ◽  
N Immobilisation ◽  
Sequential Cropping

The timing of N application to maize is a key factor to be considered in no-till oat/maize sequential cropping. This study aimed to evaluate the influence of pre-planting, planting and sidedress N application on oat residue decomposition, on soil N immobilisation and remineralisation and on N uptake by maize plants in no-till oat/maize sequential cropping. Undisturbed soil cores of 10 and 20 cm diameter were collected from the 0-15 cm layer of a no-till Red Latossol, when the oat cover crop was in the milk-grain stage. Two greenhouse experiments were conducted simultaneously. Experiment A, established in the 10 cm diameter cores and without plant cultivation, was used to asses N dynamics in soil and oat residues. Experiment B, established in the 20 cm diameter cores and with maize cultivation, was used to assess plant growth and N uptake. An amount of 6.0 Mg ha-1 dry matter of oat residues was spread on the surface of the cores. A rate of 90 kg N ha-1 applied as ammonium sulphate in both experiments was split in pre-planting, planting and sidedress applications as follows: (a) 00-00-00 (control), (b) 90-00-00 (pre-planting application, 20 days before planting), (c) 00-90-00 (planting application), (d) 00-30-60 (split in a planting and a sidedress application 31 days after emergence), (e) 00-00-00* (control, without oat residue) and (f) 90-00-00* (pre-planting application, without oat residue). The N concentration and N content in oat residues were not affected during decomposition by N fertilisation. Most of the fertiliser NH4+-N was converted into NO3--N within 20 days after application. A significant decrease in NO3--N contents in the 0-4 cm layer was observed in all treatments between 40 and 60 days after the oat residue placement on the soil surface, suggesting the occurrence of N immobilisation in this period. Considering that most of the inorganic N was converted into NO3- and that no immobilisation of the pre planting fertiliser N occurred at the time of its application, it was possible to conclude that pre-planting applied N was prone to losses by leaching. On the other hand, with split N applications, maize plants showed N deficiency symptoms before sidedress application. Two indications for fertiliser-N management in no-till oat/maize sequential cropping could be suggested: (a) in case of split application, the sidedress should be earlier than 30 days after emergence, and (b) if integral application is preferred to save field operations, this should be done at planting.

scholarly journals SEQUENTIAL CROPPING IN VEGETABLE AND TOBACCO PRODUCTION SYSTEMS UNDER VARIOUS TILLAGES

HortScience ◽  
1992 ◽  
Vol 27 (11) ◽  
pp. 1172b-1172
Author(s):  
William Terry Kelley ◽  
David L. Coffey
Keyword(s):  
Production Systems ◽  
Production Yield ◽  
Reduced Tillage ◽  
Tillage Systems ◽  
Tomato Yield ◽  
No Till ◽  
Tobacco Production ◽  
Winter Cover ◽  
Sequential Cropping ◽  
Plot Design

Three cropping sequences and three tillage systems were evaluated under reduced tillage. Sequences were spring `Packman' broccoli followed by `Sunny' tomatoes or 'm.s. Ky 14 × L8 tobacco, spring broccoli/tomatoes or tobacco/fall broccoli, and tomatoes or tobacco/fall broccoli. Each sequence was grown conventionally tilled/no winter cover, conventionally tilled/wheat winter cover and no-till transplanted directly into killed wheat. The study was conducted at Knoxville, (elev. 251m), Greeneville, (elev. 400m) and Crossville, (elev. 549m) during 1989 and 1990. Experiments were arranged in a strip-plot design with sequences stripped across tillages. No. 1 tomato yield was reduced in no-till at Greeneville (1989). Percentage of No. 1 tomatoes was not affected by tillage but the tomato-broccoli system produced a greater percentage at Greeneville (1990). Broccoli head size and subsequent yield was generally greater in conventionally tilled plots. Sequence generally had little affect on broccoli production. Yield and revenue of tobacco were generally lower in no-till treatments. Broccoli/tobacco sequences generally had the highest yield but varied by location. No-till produced lower quality tobacco both years at Knoxville but not at Greeneville.

Relay and sequential cropping corn with winter oilseed crops in northern climates

2019 ◽  
Vol 116 (2) ◽  
pp. 195-203
Author(s):  
Ronghao Liu ◽  
M. Scott Wells ◽  
Axel Garcia y Garcia
Keyword(s):  
Oilseed Crops ◽  
Sequential Cropping

Minimizing Yield Losses of Sugarcane When Grown with a Wheat Companion Crop by Fertilizer and Water Management

1988 ◽  
Vol 24 (1) ◽  
pp. 115-121 ◽  
Author(s):  
R. S. Verma ◽  
R. L. Yadav
Keyword(s):  
Water Management ◽  
Soil Moisture ◽  
Cropping System ◽  
Yield Losses ◽  
Available Soil Moisture ◽  
Companion Crop ◽  
Sequential Cropping

SUMMARYIn sub-tropical India where 70% of the country's sugarcane is grown, companion cropping of wheat in autumn-planted sugarcane is beneficial. However, because the yield of sugarcane is reduced, farmers there are reluctant to adopt this cropping system in spite of the greater monetary gains compared with wheat-sugarcane sequential cropping. Application of 200 kg nitrogen ha−1 to sugarcane in two doses, two-thirds immediately after the wheat harvest and the remainder a month later, combined with irrigation at 75% available soil moisture during the summer months (April–June), produced cane yields similar to those from sole autumn-planted sugarcane, with an additional 4.8 t ha−1 of wheat.

Growth and yield of sugarcane and potato in companion cropping system

1986 ◽  
Vol 107 (1) ◽  
pp. 125-131 ◽  
Author(s):  
R. S. Verma ◽  
R. L. Yadav
Keyword(s):  
Adverse Effect ◽  
Dry Matter ◽  
Cropping System ◽  
Growth And Yield ◽  
Growth Behaviour ◽  
Canopy Development ◽  
Sole Cropping ◽  
Growth Characters ◽  
Plant Components ◽  
Sequential Cropping

SUMMARYTwo potato genotypes, Kufri Sindhuri (KS) and Kufri Chandramukhi (KC), were grown in association with sugarcane (cv. Co 1148) at 1:1 (SP) and 1:2 (SPP) sugarcane (S): potato (P)row arrangements. Growth behaviour and yield of both crops in companionship were compared with those of their sole cropping. Initially, KC accumulated more dry matter in tubers than KS. At harvest, the contribution of tubers to total dry matter was the same in both genotypes. However, KS produced significantly higher absolute tuber yields than KC. Potato row arrangements in sugarcane did not significantly affect the proportion of dry matter in different plant components. However, SPP gave significantly higher tuber yields than SP and was the same as with sole potatoes. Drymatter accumulation, canopy development and yield of sugarcane were not affected significantly by potato row arrangements in the companion cropping system. Sugarcane was unaffected by KC in companion cropping but KS exerted an adverse effect on all the growth characters and yield of sugarcane. Similarly, in sequential cropping, sugarcane yielded significantly less when planted after KS than after KC.

scholarly journals Developing a sequential cropping capability in the JULESvn5.2 land–surface model

2019 ◽  
Author(s):  
Camilla Mathison ◽  
Andrew J. Challinor ◽  
Chetan Deva ◽  
Pete Falloon ◽  
Sébastien Garrigues ◽  
...  
Keyword(s):  
Land Surface ◽  
Crop Production ◽  
Asian Summer Monsoon ◽  
Cropping System ◽  
Surface Model ◽  
Adaptation To Climate Change ◽  
Indian States ◽  
Area Index ◽  
Tropical Regions ◽  
Sequential Cropping

Abstract. Sequential cropping (also known as multiple or double cropping) is a common feature, particularly for tropical regions, where the crop seasons are largely dictated by the main wet season such as the Asian summer monsoon (ASM). The ASM provides the water resources for crops grown for the whole year, thereby influencing crop production outside the ASM period. Land surface models (LSMs) typically simulate a single crop per year, however, in order to understand how sequential cropping influences demand for resources, we need to simulate all of the crops grown within a year in a seamless way. In this paper we implement sequential cropping in a branch of the Joint UK Land Environment Simulator (JULES) and demonstrate its use at Avignon, a site that uses the sequential cropping system and provides over 15-years of continuous flux observations which we use to evaluate JULES with sequential cropping. In order to implement the method in future regional simulations where there may be large variations in growing conditions, we apply the same method to four locations in the North Indian states of Uttar Pradesh and Bihar to simulate the rice--wheat rotation and compare model yields to observations at these locations. JULES is able to simulate sequential cropping at Avignon and the four India locations, representing both crops within one growing season in each of the crop rotations presented. At Avignon the maxima of LAI, above ground biomass and canopy height occur at approximately the correct time for both crops. The magnitudes of biomass, especially for winter wheat, are underestimated and the leaf area index is overestimated. The JULES fluxes are a good fit to observations (r-values greater than 0.7), either using grasses to represent crops or the crop model, implying that both approaches represent the surface coverage correctly. For the India simulations, JULES successfully reproduces observed yields for the eastern locations, however yields are under estimated for the western locations. This development is a step forward in the ability of JULES to simulate crops in tropical regions, where this cropping system is already prevalent, while also providing the opportunity to assess the potential for other regions to implement it as an adaptation to climate change.

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