Dry matter and nitrogen accumulation by three leguminous green manure species and the yield of a following wheat crop in an organic production system

Stopes, C.; Millington, Sarah; Woodward, Lawrence

doi:10.1016/0167-8809(95)01002-5

Cited by 53 publications

(27 citation statements)

References 9 publications

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“…Most N in the accumulation of organic matter not mobile, is easy leached and denitrificated and volatilized. The use of green manure to 'build fertility' has broad applications in the context of the management of agricultural systems (including organic) in which the use of fertilizers is reduced (Stopes et al, 1996). Organic matter content increases will increase the ability of soil to retain water and increase the content of soil nutrients, including nitrogen, phosphate and trace nutrients mobilized and concentrated in the top layer of soil that they can be used by plants and therefore the integration of organic material in the cultivation of plants in soil dry experience abiotic stresses is expected to increase the availability of resources needed by plants to increase crop productivity (Subaedah et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

Leaf Area Index, Chlorophyll, Photosynthesis rate of Lettuce (Lactuca sativa L) under N-organic Fertilizer

Slamet

Purbajanti

Darmawati

et al. 2017

IJARe

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The objective of this research is to assess the growth and physiological characteristics of lettuce in the delivery of different N-organics. Research was conducted at Faculty of Animal and Agricultural Sciences, Diponegoro University, Indonesia. The materials used were seeds of lettuce (Lettuce sativa L) on Oxisol soil types, with the total N content of 0.18 %, P (18 mg. g -1 ), K (23 mg. g -1 ) and C (1.52 %) were utilized. The organic fertilizers applied were cow-, sheep-, and guano manures, and compost and green manure (Leucaena leucocephala). The experimental design was a randomized block design with four replications and five treatments. The treatment dose of fertilizer applied is equivalent to 100 kg N / ha, namely: cow-manure ; sheep-manure; guano manure ; compost and green manure. Green manure, set into the ground is Leucaena leucocephala. The variables measured were the number of leaves, leaf area, leaf area index(LAI), the rate of photosynthesis, Chlorophyll total, anti-oxidant activity, fresh weight of lettuce per plot. The data obtained were analyzed using an ANOVA followed by the Duncan test. Guano fertilizer provided the most excellent effect on leaves, LAI, the rate of photosynthesis and biomass lettuce. Fertilizers derived from animal manure (guano, cattle, goats) gave a more excellent effect on the rate of photosynthesis of plants. Compost origin gave the lowest effect on leaf area, LAI, and the rate of photosynthesis. The number of leaves, total chlorophyll, and antioxidant content were not influenced by the different organic N fertilizers.

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Section: Resultsmentioning

confidence: 99%

Leaf Area Index, Chlorophyll, Photosynthesis rate of Lettuce (Lactuca sativa L) under N-organic Fertilizer

Slamet

Purbajanti

Darmawati

et al. 2017

IJARe

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“…Biological N 2 fixation in symbioses between legumes and rhizobia provide valuable inputs of N that becomes available to neighbouring as well as succeeding plants (Høgh-Jensen and Schjørring 1997;Mulder et al 2002;Spehn et al 2002;Stopes et al 1996;Temperton et al 2007). Results from biodiversity manipulations in natural meadow communities indicated that the transfer of fixed N from legumes to non-legumes increased with increasing plant species richness ).…”

Section: Introductionmentioning

confidence: 93%

N2 fixation in three perennial Trifolium species in experimental grasslands of varied plant species richness and composition

et al. 2009

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This study is the first to investigate quantitative effects of plant community composition and diversity on N 2 fixation in legumes. N 2 fixation in three perennial Trifolium species grown in field plots with varied number of neighbouring species was evaluated with the 15 N natural abundance method (two field sites, several growing seasons, no N addition) and the isotope dilution method (one site, one growing season, 5 g N m -2 ). The proportion of plant N derived from N 2 fixation, pNdfa, was generally high, but the N addition decreased pNdfa, especially in species-poor communities. Also following N addition, the presence of grasses in species-rich communities increased pNdfa in T. hybridum and T. repens L., while legume abundance had the opposite effect. In T. repens, competition for light from grasses appeared to limit growth and thereby the amount of N 2 fixed at the plant level, expressed as mg N 2 fixed per sown seed. We conclude that the occurrence of diversity effects seems to be largely context dependent, with soil N availability being a major determinant, and that species composition and functional traits are more important than species richness regarding how neighbouring plant species influence N 2 fixation in legumes.

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“…If the green manure crop is a legume, N may be added to the system through N fixation, in addition to any benefit through reducing N loss by leaching. Stopes et al (1996) used red and white clover as green manure crops, with the legumes being mulched (cut and left on the soil surface). The quantity of N in the cut material from red clover was 371 kg ha K1 in a single year.…”

Section: K1mentioning

confidence: 99%

Eco-efficient approaches to land management: a case for increased integration of crop and animal production systems

Wilkins¹

2007

Phil. Trans. R. Soc. B

146

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Eco-efficiency is concerned with the efficient and sustainable use of resources in farm production and land management. It can be increased either by altering the management of individual crop and livestock enterprises or by altering the land-use system. This paper concentrates on the effects of crop sequence and rotation on soil fertility and nutrient use efficiency. The potential importance of mixed farming involving both crops and livestock is stressed, particularly when the systems incorporate biological nitrogen fixation and manure recycling. There is, however, little evidence that the trend in developed countries to farm-level specialization is being reduced. In some circumstances legislation to restrict diffuse pollution may provide incentives for more diverse eco-efficient farming and in other circumstances price premia for produce from eco-efficient systems, such as organic farming, and subsidies for the provision of environmental services may provide economic incentives for the adoption of such systems. However, change is likely to be most rapid where the present systems lead to obvious reductions in the productive potential of the land, such as in areas experiencing salinization. In other situations, there is promise that eco-efficiency could be increased on an area-wide basis by the establishment of linkages between farms of contrasting type, particularly between specialist crop and livestock farms, with contracts for the transfer of manures and, to a lesser extent, feeds.

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Dry matter and nitrogen accumulation by three leguminous green manure species and the yield of a following wheat crop in an organic production system

Cited by 53 publications

References 9 publications

Leaf Area Index, Chlorophyll, Photosynthesis rate of Lettuce (Lactuca sativa L) under N-organic Fertilizer

Leaf Area Index, Chlorophyll, Photosynthesis rate of Lettuce (Lactuca sativa L) under N-organic Fertilizer

N2 fixation in three perennial Trifolium species in experimental grasslands of varied plant species richness and composition

Eco-efficient approaches to land management: a case for increased integration of crop and animal production systems

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