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Questions related from Naveen Kalra
The major components of forest eco-systems are NPP, phenology, C-sequestion, soil characteristics,soil fertility, patitionng behaviour, litter fall. the prime component of NPP estimate is through...
13 July 2017 4,870 2 View
Great work carried out by the group. i wish to know about forest growth model, with simple process of estimating NPP based on some key biotic and abiotic parameters.
28 June 2017 2,433 3 View
Insect-pest component in most of the models is weak, in some model dealt through input of pest population at various stages of crop growth to assess the yield loss associated with crops and...
29 March 2017 857 6 View
Net primary productivity, although available through satellite images and are commonly employed, but the validation with few of the case studies lacking. There is a need to evolve simple models...
25 March 2017 7,758 2 View
Sea weeds are becoming very popular as source of PGPs and for providing the micro-nutrients. The major points emerging are 1. Benefits of sea-weeds, as PGPs and source of specific nutrients 2....
14 September 2016 2,099 30 View
To me as a crop modeller, very tough situation- Many nutrients, Non-linear and complex interaction amongst them for availability and uptake Complex behaviour under different production...
06 August 2016 2,565 4 View
Effects on soil physical, chemical, physico-chemical characters of minimum tillage? Effect on cropping systems' productivity? Short- and long-term effects on soil health? Socio-economic...
03 August 2016 9,541 14 View
The main concern is mineral nutrient becoming available to crops for uptake, definitely it is a complex function, but some simple relation or technical coefficient for deriving the net...
26 February 2016 4,677 2 View
CO2 emission from agricultural soils is highly dynamic, function of organic carbon, microbial C, soil moisture, pH, soil thermal environments, crop residues incorporation, climatic condition. pot...
26 February 2016 6,595 2 View
Boron deficiency is becoming a concern n south asian environments. There is a need to identify suitable inorganic/organic materials, understand the interaction between various nutrients for...
21 February 2016 297 3 View
Due to industrial pollution and intensive agriculture, the degree of air pollution is on increase, causing aerosol, suspended particulate matter. They influence the components of direct/diffused...
13 February 2016 2,438 4 View
I have come across sugarcane model from Brazil, which I could not download, although I have copy of this model paper published Our interests are phenology prediction, biomass growth rates over a...
10 February 2016 7,009 3 View
fertilizers management is important from viewpoint of sustainable production. Various efficiency indices have been employed in literature and worked out by researchers under different management...
07 February 2016 8,093 15 View
Zero- and minimum- tillage have been debated for mixed response, in intensive agriculture zero/minimum tillage is important from viewpoint of turn around time, debated for energy saving, enhanced...
05 February 2016 9,642 10 View
Water use efficiency is not conservative, as it varies under differential inputs as well biotic/abiotic stresses, but normally we describe WUE under potentially grown condition, in a way to assess...
02 February 2016 5,387 16 View
radiation use efficiency (expressed in terms of solar radiation, intercepted solar radiation, PAR, intercepted PAR) for potentially grown condition, as well under various biotic/abiotic stress is...
02 February 2016 8,124 1 View
Rapid land use cover change and intensive agriculture (more so in south and south-east) asia contributing to rapid decline in ground water table depth, our interest to predict water table in near...
30 January 2016 2,173 4 View
Mineral N (nitrate and ammonical form) is highly dynamic, and is generally not measured by most of the researchers, who most of the time take total N or available N in consideration for evaluating...
29 January 2016 7,155 5 View
Productivity of pulse crops is a concern, and the aim is to enhance the productivity through adoption of appropriate management options. there is also a need to do yield gap analysis to address...
29 January 2016 8,961 16 View
DSSAT/INFOCROP to a limited take care of the soil conditions as influenced with tillage and other management options. Lot of work has been done in recent past to evaluate effects of zero/minimum...
27 January 2016 7,542 6 View
Antagonism within two components generally make us to apply these fertilizers at slightly different stages, or one as soil application and the other through foliar Experts please guide on this for...
27 January 2016 6,839 4 View
1. Lot of information on soil test values (spatio-temporal)) available 2. Soil quality indices e.g. SQI by Ratan Lal et al, Cornell soil health index, STCR network ar Indian Institute of Soil...
22 January 2016 8,723 26 View
Agriculture system is complex, researchers in mono-field judge the response with regard to their own specific interest, which may be location specific. Most of the instances for regional...
22 January 2016 9,719 1 View
Even if crop models have N or NPK interaction, pH greatly influence nutrients' availability, in particular micro-nutrients, which may reduce the yield even under adequate NPK supply, we need to...
21 January 2016 3,728 8 View
Due to enhanced pollution/increased aerosol concentration, the modifications in direct/diffused components of solar radiation takes place. Under extreme climatic events occurrence, reduction in...
21 January 2016 3,239 4 View
Latest versions of DSSAT have interaction among N, P and K, but not well validated, needs calibration/validation with multi-location field trials. QUEFTS deal with N, P and K optimization for...
20 January 2016 6,984 6 View
We developed WTGROWS, INFOCROP and used many other models for our studies, at this stage I feel to develop very simple crop growth model to be used extensively by the common researcher. I find...
20 January 2016 4,681 2 View
Present day concerns are reporting of micro-nutrients and secondary nutrients deficiencies reported, non-replenishment of most of the micro-nutrients, imbalanced use of secondary and...
01 January 1970 9,514 3 View
Few aspects: pre- sown, mid course and post-harvest advisories, soil health service, water and nutrients management, general package of practices, problem soils remedies, insects-pests...
01 January 1970 5,593 11 View
Water use measurements for rice, specifically under lowland /flooded/ submerged condition, are difficult. Terms like reference evapo-transpiration, consumptive water use, actual ET, crop...
01 January 1970 10,026 6 View
Several soil quality indices reported in literature, most of them are non-operational on regional applications and confined to basic research platform. Soil biological health is generally...
01 January 1970 4,886 10 View
Soil health assessment to be used for irrigation/nutrients management, tillage options, identification of suitable resource conservation technologies Soil health assessment in terms of soil...
01 January 1970 7,370 6 View
How the short and long term changes in the soil fertility developing in the forest ecologies, in particular secondary and micro-nutrients. regards
01 January 1970 4,429 5 View
The comparison of soil characters beneath the forest trees as compared to norman agricultural soils in the nearby region? Short and long term changes in the soil properties beneatrh the forest...
01 January 1970 10,037 4 View
