Removal of nitrogen, phosphorus and potassium by rice-wheat double cropping system as affected by duration of rice variety, methods of planting rice and levels and sources of nitrogen

1983 ◽  
Vol 70 (2) ◽  
pp. 287-295 ◽  
Author(s):  
Mangal Prasad ◽  
Rajendra Prasad
Keyword(s):  
Rice Variety ◽  
Cropping System ◽  
Double Cropping ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

Crop response of aerobic rice and winter wheat to nitrogen, phosphorus and potassium in a double cropping system

2009 ◽  
Vol 86 (3) ◽  
pp. 301-315 ◽  
Author(s):  
Xiao Qin Dai ◽  
Hong Yan Zhang ◽  
J. H. J. Spiertz ◽  
Jun Yu ◽  
Guang Hui Xie ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Cropping System ◽  
Aerobic Rice ◽  
Crop Response ◽  
Double Cropping ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

scholarly journals Available plant nutrients in soil as influenced by planting methods and herbicidal treatments

2019 ◽  
Vol 4 (1) ◽  
pp. 346-353
Author(s):  
Amandeep Singh Brar ◽  
Parmodh Sharma ◽  
Charanjit Singh Kahlon ◽  
U.S. Walia
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Weed Control ◽  
Cropping System ◽  
Conventional Tillage ◽  
Plant Nutrients ◽  
Available Nitrogen ◽  
Planting Methods ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

AbstractRice (Oryza sativa L.)-wheat (Triticum aestivum L.) is the predominant cropping system of North Indian region. Due to continuous following of rice-wheat cropping system every year, weed infestation particularly in wheat, has emerged a major problem resulting in reduced wheat yield and nutrient mining. Integration of suitable planting methods, along with effective weed control measures, can reduce the weed infestation and nutrient mining from the soil and can enhance available plant nutrients in the soil. To evaluate the influence of different planting techniques and weed control practices in wheat on available plant nutrients in soil, a field study was conducted at the department of Agronomy, Punjab Agricultural University, Ludhiana (India) for two consecutive years. The treatments comprised of five planting techniques: conventional tillage, zero till sowing without rice stubbles, zero till sowing in standing rice stubbles , zero till sowing after partial burning of rice stubbles and bed planting and five weed control treatments i.e. clodinafop 60 g/ha, clodinafop 60 g/ha fb 2, 4-D 0.5 kg/ha, sulfosulfuron 25 g/ha, mesosulfuron + iodosulfuron 12 g/ha and unweeded (control). The experiment was conducted in split plot design with planting methods in the main plot and herbicidal treatments in the sub plot with three replications. The results of the study showed that zero till sowing of wheat in standing rice stubbles observed significantly higher soil organic carbon, available nitrogen, phosphorus and potassium than conventional till wheat sowing after removal of rice residues. Although partial burning of rice stubbles also showed positive trend in soil organic carbon, available nitrogen, phosphorus and potassium but retort was less distinct than rice stubbles without burning. Further, zero tillage alone also showed improvement in soil organic carbon and available nitrogen, phosphorus and potassium over conventional tillage. Application of herbicides did not diverge soil organic carbon, but significantly improved the available nitrogen, phosphorus and potassium content in soil than the unweeded (control).

scholarly journals Study on the Optimum Planting Density of Pot Seedling for Mid-Late Maturing Rice Variety in Wheat-Rice Double Cropping System in Honam Plain Area

2015 ◽  
Vol 60 (3) ◽  
pp. 257-265 ◽  
Author(s):  
Shin-Gu Kang ◽  
Young-Doo Kim ◽  
Bon-Il Ku ◽  
Wan-Gyu Sang ◽  
Min-Hee Lee ◽  
...  
Keyword(s):  
Rice Variety ◽  
Cropping System ◽  
Planting Density ◽  
Plain Area ◽  
Double Cropping

scholarly journals Prediction of Nutrients (N, P, K) in soil using Color Sensor (TCS3200)

2020 ◽  
Vol 9 (3) ◽  
pp. 1768-1771
Keyword(s):  
Soil Sample ◽  
Crop Production ◽  
Frequency Converter ◽  
Cropping System ◽  
Color Sensor ◽  
Readable Form ◽  
Solid Soil ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus ◽  
A Current

The major aim of this research is to use color sensor for the detection of NPK,Nitrogen (N), Phosphorus (P) and Potassium (K) level in soil. A color sensor is used to measure and to detect the presence of NPK content of soil. The color sensor’s photodiode is designed to decide the amount of additional contents of these nutrients that has to be added into the soil to increase soil richness and fertility. “Smart Soil Quality Predictor” is going to check the presence and the amount of three main nutrients which are nitrogen, phosphorus and potassium in the soil and manage the deficiency of particular nutrition by comparing standard absorption wavelength to observed one. The color sensor is implemented as a nutrition detection sensor which consists of four LEDs as light source and a photodiode as a light detector. The light from LEDs falls on soil and reflected back after absorption. The TCS3200 color sensor is associated with eight * eight arrays of photodiodes with four completely different filters. By suitably selecting the photodiode filter’s readings, able to find the intensity of the various colours. The nutrient absorbs the light from LED and the photodiode convert the remaining light that is reflected by reflector (sample) to current. The color sensor has a current-to-frequency converter that converts the photodiode’s readings and results into square waveform with a frequency that is directly proportional to the light intensity of the chosen color. This frequency is then, read by the NodeMCU. Finally, using NodeMCU microcontroller, the output from the color sensor is converted to digital readable form. The existing system has NPK kit which utilizes liquid soil sample, but in this research detection is done on solid soil sample which is more feasible. This will act as a proposed solution to next generation cropping system which will be more economically viable with respect to crop production.

Effects of Water-Nitrogen Interaction on Absorption, Translocation and Distribution of Nitrogen, Phosphorus, and Potassium in Rice

2010 ◽  
Vol 36 (4) ◽  
pp. 655-664 ◽  
Author(s):  
Yong-Jian SUN ◽  
Yuan-Yuan SUN ◽  
Xu-Yi LI ◽  
Rong-Ping ZHANG ◽  
Xiang GUO ◽  
...  
Keyword(s):  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

Suitable Maturity Period and Accumulated Temperature of Summer Maize in Wheat-maize Double Cropping System

2018 ◽  
Vol 44 (1) ◽  
pp. 137
Author(s):  
Bai-Zhao REN ◽  
Fei GAO ◽  
Yu-Jun WEI ◽  
Shu-Ting DONG ◽  
Bin ZHAO ◽  
...  
Keyword(s):  
Cropping System ◽  
Summer Maize ◽  
Double Cropping ◽  
Maturity Period ◽  
Accumulated Temperature

Effect of organic/inorganic compound fertilizer on the yield of crop and fodder double-cropping system in the Tibetan Plateau

2011 ◽  
Vol 19 (3) ◽  
pp. 568-573 ◽  
Author(s):  
Yong-Tao HE ◽  
Wei SUN ◽  
Xian-Zhou ZHANG ◽  
Pei-Li SHI ◽  
Cheng-Qun YU ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Cropping System ◽  
Inorganic Compound ◽  
The Tibetan Plateau ◽  
Double Cropping ◽  
Compound Fertilizer
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